· l l l l l l l l l l l l l l l l l l l 31m13ne8001 2.14559 mulligan table of contents wlp-11...

a.14559 MULL iGAN

l l ll REPORT ON

GROUND MAGNETIC, HORIZONTAL LOOP EM AND

l VLF-EM SURVEYS,

m WENDIGO B AND ICEFISH LAKE GRIDS,

WENDIGO LAKE PROPERTIES,

f SKEAD AND RATTRAY TOWNSHIPS,

LARDER LAKE MINING DIVISION, ONTARIO,

l N.T.S: 31 M/13

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m Francis L. Jagodits, P.Eng.^ o .5 p0

Consulting Geophysicist

l December 1991

for

SUDBURY CONTACT MINES LTD.

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31M13NE8001 2 .14559 MULLIGAN

TABLE OF CONTENTS

WLP-11

WLP-12

Total Magnetic Field Postings Profiles, Wendigo B Grid.

Ground Magnetometer Survey, Contours of Total Magnetic Field, Wendigo B Grid.

Ground VLF-EM Survey,Postings St Profiles ofNAA Frequency, Wendigo B Grid.

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2.

3.

4.

5.

6.

CIITJVPV CDBT'TirTr'R'T'TCMJC &MH TMCTRTTMlPllI'PRTTOM

DATA REDUCTION AND PRESENTATION. . . . . . . .

THE SURVEY RESULTS . . . . . . . . . . . . . .

4 . 1 General Comments . . . . . . . . . . . .

4.2 Wendigo B Grid . . . . . . . . . . . . .

4.2.1 General Comments . . . . .4.2.2 Magnetic Survey . . . . .4.2.3 Horizontal Loop EM Survey4.2.4 VLF-EM Survey . . . . . .

4.3.1 General Comments . . . . .4.3.2 The Surveys . . . . . . .

CONCLUSIONS AND RECOMMENDATIONS . . . . . . . .

apppuriTY

LIST OF ACCOMPANYING MAPS

MAP NUMBER TITLE

WPL-09 Topography, Wendigo B Grid

WLP-10 Ground Magnetometer Survey,

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TITLE

1:5 000

1:5 000

1:5 000

1:5 000

Savaria Geophysics Inc

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WLP-13 Ground VLF-EM Survey, 1:5 000Contours of Filtered NAA Frequency, Wendigo B Grid.

WLP-14 Ground VLF-EM Survey, 1 :5 000Postings S Profiles of NSS Frequency, Wendigo B Grid.

WLP-15 Ground VLF-EM Survey, 1:5 000Contours of Filtered NSS Frequency, Wendigo B Grid

WLP-16 Horizontal Loop EM Survey, 1:5 000444 Hz Postings Se Profiles, Wendigo B Grid.

WLP-17 Horizontal Loop EM Survey, 1:5 0001777 Hz Postings S Profiles, Wendigo B Grid.

WLP-18 Horizontal Loop EM Survey, 1:5 0003555 Postings Se Profiles, Wendigo B Grid.

I WLP-19 Ground Geophysical Surveys, 1:5 000 Interpretation Map, Wendigo B Grid.

l WPL-20 Topography, Icefish Lake Grid 1:5 000

I WLP-21 Ground Magnetometer Survey, 1 :5 000 Total Magnetic Field Postings S Profiles, Icefish Lake Grid.

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WLP-22 Ground Magnetometer Survey, 1:5 000Contours of Total Magnetic Field, Icefish Lake Grid.

WLP-23 Ground VLF-EM Survey, 1:5 000Postings S Profiles of NAA Frequency, Icefish Lake Grid.

WLP-24 Ground VLF-EM Survey, 1:5 000Contours of Filtered NAA Frequency, Icefish Lake Grid.

WLP-25 Ground VLF-EM Survey, 1:5 000Postings St Profiles of NSS Frequency, Icefish Lake Grid.

Savaria Geophysics Inc.

WLP-26 Ground VLF-EM Survey, 1:5 000Contours of Filtered NSS Frequency, Icefish Lake Grid.

WLP-27 Horizontal Loop EM Survey, 1:5 000444 Hz Postings St Profiles, Icefish Lake Grid.

WLP-28 Horizontal Loop EM Survey, 1:5 0001777 Hz Postings St Profiles, Icefish Lake Grid.

WLP-29 Horizontal Loop EM Survey, 1:5 0003555 Postings Si Profiles, Icefish Lake B Grid.

WLP-30 Ground Geophysical Surveys, 1:5 000Interpretation Map, Icefish Lake Grid.

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1. INTRODUCTION

During the period between December 3 and December 14, 1991^ TechTerrex Inc. of Oakville, Ontario conducted ground geophysical surveys on behalf of Sudbury Contact Mines Ltd. over tWo grids in the Wendigo Lake area of Ontario. The Wendigo B Grid covers an area where an earlier airborne geophysical (QUESTEM) survey have delineated a number of conductors; the smaller Icefish Lake Grid is over the intersection of northwest and east-northeast striking dykes. The ground magnetic, horizontal loop em (HLEM) and VLF-EM surveys cover 22 km and 5 km of survey lines over the Wendigo B and Icefish Lake Grids respectively.

The Wendigo B Grids is in Skead Township. It can be accessed from Hwy 624, approximately 9 km south of Larder Lake, where it intersects a logging road leading to the grid, located approximately 10 km to the southeast. The logging rdad to the Icefish Lake Grid, which is in Rattray Township, joins Hwy. 66 about 3.5 km east Kearns, Ontario; the grid is approximately 23 km south of the above junction. Both grids are in the Larder Lake Mining Division. The Wendigo Lake property is about 25 km northeast of Engelhart, Ontario. The location of the property is indicated on Fig.l.

The Wendigo B and the Icefish Lake Grids cover 22 and' 11 claims which are listed in Tables I.

The following report presents the survey results, describes the survey procedures and instrumentation and discussion of the results and recommendations.


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SUDBURY CONTACT MINES LTD. Wendigo Lake Properties

WendiqoB 8 lcefish Lake Grids

LOCATION MAPRattray and Mulligan Townships

Larder Lake Mining DivisionOntario

'HTS:'MM/13. Figure


Skead Township

Rattray Township

TABLE I

LIST OF SURVEYED CLAIMS

WENDIGO B GRID

L1167881L1167882L1167883L1167884L1167885L1167886L1167887L1167888L1167889L1167890L1167891

L1167892L1167945L1167946L1167948L1167949L1167951L1167952L11679^4L11679S5L11679S6L1167957

ICEFISH LAKE GRID

L1168113 L1168114 L1168115 L1168116 L1168117 L1168118

L1168H9 L1168120 L1168122 L1168123 L1168124



2. SURVEY SPECIFICATIONS AND INSTRUMENTATION

The surveys were conducted along lines 200 m apart. Observations of the earth's total magnetic field and the in-phase and quadrature components of the VLF magnetic field were made simultaneously every 12.5 m along the survey lines and the base line. The OMNI PLUS instrument manufactured by EDA Instruments of Concord, Ontario was used for the survey.

The day-to-day and diurnal variations of the earth's magnetixc field were recorded, in digital format, using an EDA OMNI IV recording base station magnetometer system which was located at latitude: 47 0 59" 00'' and longitude: 79 0 31' 00'' while surveying the Icefish Lake Grid (base station value: 58,400 nT) and at latitude 47 0 58' 45" and longitude 79* 38' 40" (base station value 61,500 nT) during the surveying of the Wendigo B Grid. The sampling interval was 15 sec.

VLF transmitters located at Cutler, Maine (NAA) and at Annapolis, Maryland, operating at 24.0 kHz and 21.4 kHz respectively, provided the primary electromagnetic field for the VLF-EM survey.

The in-phase and quadrature phase components of the secondary electromagnetic field were measured at three frequencies, 444 Hz, 1777 Hz and 3555 Hz employing the Apex Parametrics MaxMin IIP horizontal loop electromagnetic system coupled to an Apex Parametrics MMC digital recorder. The separation between transmitter and receiver coils was 200 m and observations were made at stations 25 m apart. The in-phase component measurements are corrected for the effects of topography.



3. DATA REDUCTION AMD PRESENTATION.

The planimetric features of the grid and the location of the claims, together with the claim numbers are shown map WLP-09 and WLP-20, Wendigo B and Icefish Lake Grids respectively (scale 1:5 000). which is also used to present the interpretation of the ground geophysical surveys (maps WLP-19 and WLP-30).

The observed total field magnetic data were corrected for the day-to-day and diurnal variations of the magnetic field utilizing the recordings of the base station magnetometer. The data are presented in two formats (scale 1:5 000):

as profiles along the lines and the base line, the profile base value being 60 000 nT for the Wendigo B Grid and 58 000 nT for the Icefish Lake Grid; the corrected total magnetic field is indicated at each station ( maps WLP-10 and WLP-21) and,

as contours of the corrected total magnetic field; the basic contour interval is 50 nT {Wendigo B Grid) and 10 nT (Icefish Lake Grid), with larger intervals in areas steep gradients (maps WLP-11 and WLP-22).

The VLF-EM survey results are also presented on base maps showing the lines and the stations. The results are given in two formats, for each of the data obtained from NAA and NSS transmitters. The formats are:

- profiles of the in-phase and quadrature components/ the observed values are indicated at each station (maps WLP-12 and 14 and WLP-23 and 25) and

as contours of the filtered (Fraser filter) in-phase component, the filtered values are shown oil the maps (maps WLP-13 and 15 and WLP-24 and 26).

The horizontal loop em data are shown as profiles of the components, separate maps were prepared for each frequency and coil separation:

Wendigo B Grid: WPL-16,17 and 18 and

Icefish Lake Grid: WPL-27, 28 and 29.



4. THE SURVEY RESULTS

4.l General Comments

The approximate outline of the magnetic bodies shiown on the Interpretation Maps are based on the study of the contour map as well as the profile presentation of the magnetic field. Wherever the dip of the body can be determined, it is also indicated.

The axes of the VLF-EM conductors are classified as "poor", "mediocre" and "fair", which attempts to describe the amplitude of the anomalous signatures.

The Interpretation Map also shows the axes of the horizontal loop em conductors, the location of which were determined from the 444 Hz data wherever possible.

The Wendigo B and Icefish Lake Grids were covered by a combined airborne magnetic - time domain electromagnetic .(QUESTEM) survey conducted by Questor Surveys Limited on behalf Sudbury Contact Mines Ltd. (August 1990 - March 1991). The QUESTEM Anomaly Maps and Total Field Magnetic Contour Maps (1:20 000 Scale) were available for the interpretation of the ground geophysical data..

The appropriate parts of the QUESTEM Anomaly Maps were enlarged to 1:5 000 scale and the location of the anomalies were transferred to the Interpretation Maps. In order to avoid clutter, the descriptors of the anomalies on the QUESTEM maps were simplified for inclusion on the Interpretation Map. It is also noted ;that the location of the anomalies on the Interpretation Map is approximate reflecting inaccuracies which are due to the enlarging procedure used.

4.2 Wendigo B Grid

4.2.1 General Comments

The geological comments from a letter by David W. Christie, Project Geologist (November, 1991):

.... 'The Wendigo "B" grid on the other hand overlies an unconformity between the Huronian group sediments to the east and the Skead group volcanics to the west with a peridotitic intrusion sitting in the middle."



The Wendigo B Grid is situated 6 km northwest from the Skeleton Creek Grid (results of the magnetic-VLF-EM surveys covering the grid were presented and discussed in an earlier report). The north-northwest striking dyke which crosses the Skeleton Creek Grid (located further to the south) is about 2700 m northeast of the Wendigo B Grid.

The grid is over the central part of a north- south striking airborne magnetic anomaly, the strike of which turns northwest in the north of the grid. The approximate amplitude of the airborne anomaly is 3800 nT - 4000 nT attesting to mafic to ultramafic source, the perioditic intrusion. The significant airborne anomaly terminates just south of the grid but continues to the northwest from the north end of the grid with undiminished amplitudes.

A series of 5 Channel to 8 Channel QUESTEM anomalies are associated the dominant magnetic anomaly occurring on the east and west flanks and in two instances the magnetic peak and the ein anomaly are nearly in direct correlation. The signatures of the other airborne em anomalies occur up to the fourth channel. The anomalies do not present a coherent pattern, but a general north- south strike are forcefully implied.

4.2.2 Magnetic Survey

It is not surprising that the anomaly complex demarking the peridotitic intrusion dominates the magnetic contour map. The approximate width of the complex (identified as I ) is about 40p m and it terminates in the south of the grid. In the north at about L-800S, the strike of the coirtplex turns north-northwest. The amplitude of the complex exceeds 5 000 nT. It encloses a series of subparallel, "narrow" anomalies superimposed on the main anomaly. These "internal" anomalies show the more magnetic (more mafic ?) phases of the intrusion, the width of which vary, but generally wider in the north. Narrow anomalies with steep flanks, along the east and west perimeter of the complex suggest shallow depth of burial which may increase towards the north. The complex anomaly shapes are not readily usable for morje detailed depth analysis, however, modelling could provide some answers.



There is insufficient magnetic evidence to distinguish between the Skead volcanics and the Huronian sediments

The disruptions of the magnetic trends afforded the outlining of several northeast and northwest striking shears and/or faults, many of them supported by VLF-EM evidence.

4.2.3 Horizontal Loop EM Survey

The airborne em anomalies associated with the intrusion were located successfully on the ground. The HLEM anomalies at the low frequency of 444 Hz survey are dominated by large amplitude quadrature components, coupled to small amplitude in-phase responses. There are two exceptions along Lines 400S and 800S. The large quadrature responses suggest poorly conductive sources.

Two subparallel, north-south striking conductors, WB-HC1 and WB-HC2 were defined, located within the intrusive. The conductors are 250 m apart, at their widest separation on li-lOOOS and they join on L-2600S. The conductor terminates between Lines 2600S and 2800S coinciding with the termination of the intrusive. The quality and amplitude of the responses improve at the higher frequencies, although the quadrature responses still dominating.

The easterly WB-HC1 may have been displaced by interpreted faults near Lines 800S and 12008. WB-HC2 commences between Lines 600S and 800S and a possible northern extension is identified on the northernmost L-0.

Estimates of depth and conductance (conductivity-thickness product, Siemens) were made using standard Argand diagrams along lines 1800S through 2600S and along L-400S. Cpnductances determined from the 3555 Hz and 1777 Hz data are consistently between l S (Siemens) and 2 S confirming the earlier prediction of poorly conductive sources. The 3555 Hz data gave a depths varying from 24 m to 36 m along the southern lines (L-1800S - L-2600S), but near surface ( < 4 m) source was predicted from the 1777 Hz data. The conductor along L-400S appears to be shallow and its conductance is about 1.5 S.



8

Conductors WB-HC1 and WB-HC2 deroark two conductive horizons, which are intermittently associated with the "narrow" magnetic anomalies. Conductive shear, faults or contacts could form the conductive horizons.

4.2.4 VLF-EM Survey

Very good quality data were obtained from both transmitters. The data produced by the Annapolis, Maryland (NSS) were used principally for the interpretation. The VLF-EM responses are mainly due to current gathering along the long strike length conductive features, favoured by return currents to the transmitter.

The majority of the conductors are north-south and are associated with the intrusion. The parts of Conductors WB-VC1 and WB-VC2 are very closely associated with Conductors WB-HC1 and WB-HC2, responding the to same sources demarking them in more detail. It is interesting to note that WB-VC2 (WB-VC2D) extends further to the south from the southern termination of the intrusive and WB-HC2.

The north-northeast striking WB-VC3, west of the intrusion is a noteworthy event, denoting another structural source.

The other important contribution of the VLF-EM survey is supporting the interpretation of the northwest and northeast striking cross structures.

4.3 Icefish Lake Grid

4.3.1 General Comments

The following geological comments ate from the letter cited above:

"...the Skeleton Lake grid overlies Huronian/Cobalt group sediments with good majority being diamictite, but alsty including argilliteSf quartzites, arenites and wache. In addition a younger diabase dyke trending NE over both the Skeleton grid and ICefish grid



9

and an older set of diabase is known to lie beneath the Huronian sediments trending NW. The Icefish Lake grid straddles the unconformity between the Pontiac and Huronian sediments."

The Icefish Lake Grid is about 7500 m northeast of the Skeleton Creek Grid (an earlier report discusses the results). The airborne total field magnetic contour map shows that (the norths- northwest striking anomaly crossing the Icefish Lake Grid, subparallel to the anomaly in the Skeleton Creek Grid, extends to the northern and southern borders of the airborne survey j 2000 m and 7000 m respectively). In comparison/ th^ northeast striking anomaly transecting the grid/ about 2000 m northeast of and subparallel to the northeast striking anomaly crossing the Skeleton Lake Grid appears to terminate about 2500 m to the southwest/ but extends to the northeast corner of the survey area (4500 m).

QUESTEM anomalies were not registered over the grid.

4.3.2 The Surveys

The dominant magnetic features are the north-northwest and northeast striking anomalies representing the older and younger diabase dykes mentioned above. The intersection of the two sets of dykes is reasonably well defined between Lines 600N and SOON about 50 to 75 m east of the base line. The expressions (DI and DI?)of the older dyke, implying an easterly dip are narrower with steeper flanks than those of the northeast trending diabase (D2), possibly indicating a deeper source for D2. At least two branches of the older dyke are apparent. Nearly north-south and east-west trending interpreted structures displace the dykes. Magnetic Anomaly Ml,located between Lines SOON and 1000N, about 300W may indicate another branch of the older diabase.

There are no readily recognisable magnetic expressions of the unconformity between the Pontiac and Huronian sediments.



10

The general trend of the VLF-EM conductors vary from north-south to north-northwest and north-northeast and exhibit considerable strike length. The longest and well defined IL-VC1 runs along the centre of Icefish Lake, indicating conductive lake sediments and the fault which actually may have localised Icefish Lake; other conductors like IL-VC2 and IL-VC3 correlate with creeks. One exception is the north-northwest trending IL-VC4 which could describe a conductive shear or contact.

The horizontal loop em survey describes near surface poorly conductive features demonstrated by:(a) lack of recognisable in-phase anomalies at 444 Hz, coincident with quadrature anomalies and(b) although the in-phase responses improve at higher frequencies, the amplitude of the quadrature anomalies are much larger than the in-phase amplitudes. The 200 m coil separation data indicate multiple conductors axes but their locations are not easily defined. The main anomaly is IL-HC1, it is associated with Icefish Lake and is caused by the conductive sediment. Computations along L-1000N give a depth of 5 m and a conductance of 0.5 s.



115. CONCLUSIONS AND RECOMMENDATIONS

The ground magnetic survey of the Wendigo B Grid outlined the basic intrusive, but the Skead volcanics and the Huronian sediments cannot be distinguished based magnetic evidence. The more magnetic parts of the intrusion are clearly indicated by the "narrow internal" anomalies which are superimpositions on the main anomaly.

The steep flanks of the main anomaly are suggestive of shallow depths, which are confirmed to some extent by the depths obtained from the horizontal loop data. The magnetic and VLF-iEM results indicate structural deformation (faulting and/or shearing). Two long strike length, north-south, subparallel conductors were defined by the horizontal loop em survey, which are within the intrusion. The features join at the southern end of ttye grid and its termination coincides with the apparent southern end of the magnetic intrusion.

The dominance of the quadrature component at the loy frequency is indicative of poor conductivity which is supported by the consistently low conductances computed from the em responses. The computed depths vary from <4 m to about 30 m.

The conductors are associated with the "narrow" magnetic anomalies, but direct correlation between the magnetic and HLEM responses is rare considering the strike length of th0 features. The above evidence points to a long strike length, poorly conductive, relatively shallow sources, like conductive contacts and/or shear zones, which may occasionally host minor magnetic mineralization as implied by the magnetics.

The strong, well defined VLF-EM responses, which are overwhelmingly due to current gathering, substantiate the findings of the HLEM survey. By the nature of the VLp-EM method the long conductors are defined in more detail and the VLF-EM data also aided the delineation of northwest and northeast interpreted structures.

If the locations of direct or nearly direct correlation between magnetic and HLEM signatures, like WB-HC1 on L- O and WB-HC2 along Lines 800S and 1200S are to be investigated further, it is recommended that the lines should be surveyed using shorter cable separation i. e 75 m. The shorter separation will give a more precise location of the conductor. It would be also advisable to measure the vertical gradient of the magnetic field for better definition of the "narrow internal" anomalies.

The magnetic contour map of the Icef ish Lake Grid show the magnetic signatures of the north-northwest and the northeast striking diabase dykes. The intersection of the dykes is between


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Lines 600N and SOON about 50 - 75 m west of the Base Lin6. If this intersection is to be investigated, it is suggested that intermediate lines should be established and Lines 600N, SOON and the new lines should be surveyed with a vertical gradiometer.

The main anomaly of the HLEM survey coincides with Icefish Lake and the suspected source is conductive lake bottom sediments and conductive shear zone along which the lake is located. The main VLF-EM conductor also correlates with the lake, others appear to coincide with creeks. The exception is IL-VC4 which could indicate a conductive shear.

Respectfully Submitted

Francis L. Jagodits, Dipl. Consulting Geophysicist

Savaria Geophysics Inc,

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6. APPENDIX.

l- Survey Statistics

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SURVEY STATISTICS

Survey Dates; Wendigo B Grid:

Icefish Lake Grid:

December 3-13, 1991

December 11 - 14,1991

List of Surveyed Claims: See Tables I and II

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Total Line^ km Surveyed; Wendigo

Icefish

Operators: M. C. Wilson, 199 L6L 5N3

B Grid: 22 I.km

Lake Grid: 5 I.Km

Sheraton Court, Oakville, Ont.

D. Lafortune, 6 King Street, St. Charles, Ont.POM 2WO

H. Claridge, RR#2,P1L 1W9

Drafting; R. T. Marcroft, 10Ont., L5G 3G7

Brace bridge, Ontario

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Hurontario Street, Mississauga,

Reporting; F. L. Jagodits, P. Eng. , Consulting Geophysicist, 353 Berkeley Street, Toronto, Ont. M5A 2X6


Logistics and Interpretation Reporton a UTEM Survey at

the Skeleton Creek Gridfor

Sudbury Contact Mines Limited December 1991

RECEIVFH

MAY l 2 1992

MINING LANDS BRANCH

BenPolzer Teresa Myrfield

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INTRODUCTION

A UTEM HI survey was carried out by Lamontagne Geophysics personnel on behalf of Sudbury Contact Mines Limited in November/December of 1991. The survey took place on the Skeleton Creek property which is located approximately 26 kilometres northwest of Englehart, Ontario (Figure 1).

FIELD WORK

The Lamontagne crew mobilized to Englehart, Ontario on November 23. The crew of six con sisted of Teresa Myrfield (geophysicist), Rowan Laver (operator), Joel Jansen (opera tor/assistant), Gerald Lafortune, Guy Cote and Paul Belavance (assistants). Operations were based out of Englehart.Ontario and the grid was easily accessed by truck.

A total of 36 kilometres of vertical component (Hz) coverage and 1.05 kilometres of horizontal component coverage (Hx) were surveyed from 4 loops. Work was slowed, particularly on the first loop, by the distance of the loops from the road and by the presence of (deep and not yet frozen) creeks on the survey lines. Surveying concluded December 2 and the crew demobilized the following day.

The survey equipment consisted of one UTEM transmitter and two receivers, including all ac cessories and support equipment. A field computer (Macintosh II) was used for reducing and plotting the data during the survey.

A description of the daily field work is shown in Table I.

Skeleton Creek UTEM Survey (1991) Page 1/15

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FIGURE l: SKELETON CREEK GRID LOCATION

i Creek UTEM Survey (1991) Page 2/14

TABLE I - PRODUCTION DIARYSKELETON CREEK - SUDBURY CONTACT MINES LTD

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date kms. charge comments

Nov23 - MOB Mob. from Kingston to Englehart (T. Myrfield, R.Laver, J. Jansen) G. Cote arrived from Normetal in evening.

24 - 2P Laid out loop 1. Found that the access to loops wasnot very good.J. Lafortune arrived from Sudbury. Decided that with the poor access to loops, another looper would be required.

25 2.025 2P Spent most of morning transporting gear to trans mitter site. Read loop l lines: 32S : 1300E - 775E, 700W - 200E 30S:1300E-775EFound crossing of various creeks to be a problem - will have to divide up these lines around creeks. P. Bellavance arrived from Normetal in morning.

26 4.725 2P Read loop l lines:2600S : 75E - 700W 2800S:1300E-700W 3200S.-750E-250E 3000S : 750E - 700W

27 3.6 2P Read loopl lines:2400S:1500E-700W 2600S : 1500E - 100E

28 6.0 2P Read loop 2 lines:1600S:500E-700W 1800S : 900E - 700W 2000S : 900E - 700W 2200S : 900E - 700W


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29 5.65 2P Read loop 2 lines:1200S:900E-700W1400S : 900E - 700W1600S : 900E - 500E2000S:900E-150E(Hx)Saw Toby Hughs in Timmins. Decision made toread the fourth (optional) loop.

30 5.7 2P Read loop 3 lines:lOOOS : 700W - 700E8S:700W-700E6S:700W-800E4S : 700W - 700EA few moose had a Friday night party in our loop.Gave us seven loop breaks in the morning.

Dec l 4.9 2P Read loop 3 lines:OS:700W-500E 200S:700W-500E Read loop 4 lines: 2400S:1300E-0 2600S : 1300E - 100EP. Bellavance driven back to Nonnetal in evening by Guy Cote. '

2 4.45 2P Read loop 4 lines:3200S:1300E-0 3000S:1300E-0 2200S:900E-0 2000S:900E-50W

3 - DEMOB Picked up loop 4 in morning. Packed up andreturned home.


SURVEY DESIGN

The UTEM coverage was obtained using 4 transmitter loop locations. A nominal loop size of 1200m x 1200m was used, with all lines surveyed from three loops (loops 1,2,3) lying west of the survey lines. These loops were situated in order to provide maximum coupling with the as sumed targets. An east-lying loop (loop 4) was used to provide two- directional coverage for lines in an area of potential interest. The lines were spaced 200 metres apart, with measurements of the vertical component of the electromagnetic field (Hz) taken at nominal station spacings of 50 metres. The spacings were generally decreased to 25 metres in the vicinity of anomalies. Ten channel data was collected using a base frequency of approximately 31 hertz. The layout of the lines and the four loops used during the project is shown in figure 2.

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t t t t t t t . .BUU....JJ;S B 8 5 B B I . 8 I S 5 B B S B B i ! B

LOOP 3

LOOP 2

LOOP1

LOOp 4

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FIGURE 2 UTEM LOOP LAYOUT FOR SKELETON CREEK GRID


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INTERPRETATION

There was no evidence in the survey area of any highly conductive localized bodies which would be considered obvious drill targets. One anomaly has been identified as possibly due to the presence of a conductor, as opposed to simply caused by a contact between rocks of differ ent resistivities.Most of the anomalies seen on the profiles appear to reflect shallow basement contacts where there is a difference in the resistivity of the rocks on either side of the contacts.

The three main types of anomalies seen in the data are then:i bedrock contact anomaliesii discrete current channeling responses

iii possible inductive response from a conductor

As current channeling is a dominant effect in the data of this survey, it will be briefly described before the three main anomaly types occurring in the data are delt with in detail below.

CURRENT CHANNELING

In an idealized, perfectly resistive host rock, the time decay of an individual anomaly is char acteristic of the conductivity of the body and proportional to its thickness and size. When cur rent channeling is a dominant effect in the data, the decay rate of the current channeling anomaly is dependent on the bulk conductivity of the host rock and the scale of the eddy currents induced on a regional scale rather than the intrinsic conductivity of the anomaly. Current channeling anomalies are generated when the large scale current system which circulates around the trans mitter loop is channeled through zones which are less resistive. The amount of current that is channeled through these zones depends on their length as well as their conductivity. If the zones are of relatively short strike length, there will not be a large effect from current channeling. However, if the zones are long and parallel to the loop front, they can channel the current effec tively, even if their intrinsic conductivity is quite low.As a result of current channeling, a zone whose intrinsic conductivity is not high is capable of generating substantial anomalies. Anomalies which are generated by this phenomenon may be identified by their shape, and by the the tendency for all anomalies to have roughly the same rate of decay when there is not an inductive response from a conductor in addition to the current gathering.


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BEDROCK CONTACT ANOMALIES

The bedrock contacts plotted on the UTEM interpretation map are basically 'electrical' contacts caused by the differences in resistivity of the rocks involved. The anomalies involved may be described as current channeling anomalies. since the contact anomaly is a reflection of different current densities on either side of the contact The contact picks on the interpretation map are identified by circles with integer superscripts indicating the latest UTEM channel on which the anomaly is clearly seen. Triangles point toward the more conductive side of the contacts. The UTEM channels are numbered in order of reverse time, so that the lower the channel, the slower the decay of the response. Most of these anomalies disappear about the same time (channels 3- 5). These anomalies have been correlated from line to line on the map.- The locations of these contacts will be useful as an aid to the mapping of lithological units including overburden, but it should be noted that some of these contacts are much clearer and of larger amplitude than others. There has been an attempt to correlate anomalies even in cases where the amplitude of the anom aly becomes very small along strike.

It is difficult to determine the absolute conductivities of the rock units involved. It is also diffi cult to determine the relative conductivities of distinct units which are not adjacent to each other. The reason for this is that this particular type of anomaly is likely present because of the contrast in conductivity between the units (as described above in 'current channeling'). Possible low resistivity units are clay, shales, sediments, and stringer sulphide zones. Most metavolcanic or other crystalline rocks would have high resistivities. The average resistivity in ferred from the decay time of the regional currents is more than 1000 ohm-metres. This means that even in the event of a 10: l resistivity contrast, none of the units would be considered to be a conductor in its own right.

(ii) DISCRETE CURRENT CHANNELING RESPONSES

Discrete current gathering responses are basically lower resistivity zones (meaning relatively more conductive than the adjacent zones) which are too narrow with respect to the station spac* ing to resolve their boundaries independently. These have been denoted by single X's on the in terpretation map. A integer superscript is placed at each X to indicate the latest UTEM channel on which the anomaly is clearly seen. These zones may correspond to low resistivity geological units, fault zones, or overburden troughs.


ti) POSSIBLE INDUCTIVE RESPONSE FROM A CONDUCTOR

A single anomaly has been identified as a possible inductive response. This was seen on line 2200S between 625E and 735B. From loop 2, the anomaly is seen as a negative response which persists to channel 2 and enhances the negative current channeling response of the associated contacts. From loop 4, which lies on the opposite side of the grid, we would expect a pure cur rent channeling response to reverse polarity, while an inductive response from a shallow dipping body should remain negative. Although the response is inverted through channel 4, channels 2 and 3 seem to display a very slight negative anomaly in this configuration. Although the identi fication of this as an inductive anomaly is by no means clear, it is the best indication of a local ized inductive anomaly. The causative structure would be a shallowly west dipping body with a depth to top of less than 25 metres at 735E.

Modeling has indicated however that most dips in this vicinity are likely subvertical. Figure 3 shows a model which roughly illustrates the two more resistive zones bounded by two more con ductive zones. These would appear as four bedrock anomalies between zones of differing resistivities on the interpretation map. The slight inductive decay response has not been mod eled in this figure.

RECOMMENDATIONS

Aside from the target at 700E which you are currently testing, it is very difficult to establish drill targets based on the UTEM data alone. The anomaly on line ON, at 62W is likely a bedrock contact anomaly. There is no evidence of an inductive response from a conductor at that loca tion.

The choice of drill targets should probably be made on the basis of an interpretation of the UTEM results in the context of establishing favourable structural and lithological trends using additional geological constraints. Please advise us if you require any assistance in this regard. In particular, we would be glad to have a second look at any targeted responses in advance of drilling.


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FIGURE 3: UTEM FIELD DATA(LINE 22S) 4- RESPONSE FROM MULTILOQP MODE


APPENDIX I

THE UTEM SYSTEM DESCRIPTION

Skeleton Creek UIEM Survey (1991) Page 10/15

THE UTEM DESIGN PHILOSOPHY

UTEM uses a large, fixed, horizontal transmitter loop as its source. The loop may range in size from 300m x 300m up to as large as 4km x 4km. In general, smaller loops are used over conduc tive terrain or for shallow sounding whereas larger loops may only be used over resistive terrain. Depending on the noise levels, measurements may be made out to a distance of 1.5 to 2 times the loop dimensions. Lines may be surveyed out from the edge of the loop (used to detect dipping conductors) but may also be read across the loop wire through the centre of the loop (used mainly to detect horizontal conductors). The magnetic field of the UTEM transmitter may also be measured down boreholes to depths up to 2.8 kilometres.

While surveying on surface, the vertical component of the magnetic field (Hz) of the loop is al ways measured. However, horizontal in-line (Hx) and cross-line (Hy) components may also be measured if more detailed information is required. A receiver coil mounted on a portable tripod is used to measure the magnetic field. For down-hole surveys, a similar coil of smaller diameter is used to measure the axial (along-borehole) component of the magnetic field. Due to the great er distance between coil and receiver, however, the signal is transmitted to surface digitally using a fibre-optic data link. The UTEM system is also capable of measuring the two horizontal components of the electric field (Ex, and Ey), but this is used only for very specific geological problems. A dipole sensor comprised of two electrodes is used to measure the electric field components.

The UTEM transmitter passes a low-frequency (4 Hz to 90 Hz) current of a precisely regulated waveform through the transmitter loop. The frequency may be set to any value within the operat ing range of the transmitter, but is usually set at 31 Hz so as to minimize powerline effects (60 Hz noise). Since the receiver coil responds to the time derivative of the magnetic field, the sys tem really "sees" the step response of the ground. UTEM is the only time domain system which measures the step response of the ground. All other systems to date transmit a modified step current so that they "see" the (im)pulse response of the ground at the receiver.

The transmitted ("primary") field induces current flow in the ground below and around the transmitter loop (i.e. in the "half-space") which itself produces a measurable EM field called the secondary field. This current flow has an inherent "inertia" which resists the change in primary field direction (at each step). This inertial effect is called self-inductance: it limits the rate at which current can change. Inductance is only dependent on the shape and size of a conductive path. It takes a certain amount of time for the current to be redirected by the new primary field direction and reestablished to full amplitude; this time is called the time (decay) constant. The time constant of a good conductor is greater than that of a poor conductor because the terminal current level is greater whereas the rate of change is limited by the inductance of the current path. The ratio of the inductance to the resistance of the current path is the time constant.


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ie large scale current which is induced in the half-space by the primary field produces the half- space response as seen in typical UTEM profiles. Other currents may be induced in locally more conductive zones (conductors). In general, these have greater time constants than the half-space response because their conductivity is greater. Such responses are superimposed upon (and distorted by) the half-space response. Using a scale modeling tank, the UTEM responses of many different conductive bodies have been measured (in free space). These responses take the form of one or several decaying patterns with a variety of amplitudes and shapes. They have been assembled into type curve suites which are available from Lamontagne Geophysics Ltd..

DATA PRESENTATION

The data are plotted in "Channel l Normalized" form whereby a different reduction formula is applied to channel l data.

The channel l data are reduced before plotting according to the formula:

The other channels are reduced using a slightly different formula:

Hz: Rnc = (Chnc - Chl c) l (Chlc) x

Hx: Rnc - (Chnc - Chlc) l (H?) x 1009fc

The data may be plotted as either point normalized or continuously normalized Values.

In point normalized form the normalizing factor in the denominator of the above expressions (Hp for Hx data and Chlc for Hz data) is the observed channel l amplitude or computed prima ry field at a single chosen station on the survey line. Thus at every station the field is expressed as a percentage of the normalizing field at the point of normalization. This point is denoted by

on the plot

In continuously normalized form the normalizing factor in the denominator is the local eh l value or computed primary field. In this form the response is continuously amplified as a function of offset from the loop as the primary exciting field diminishes. Although this type of normaliza tion considerably distorts the response shape, it permits anomalies to be easily identified at a wide range of distances from the loop. Interpretation of the shape of the anomaly is usually done on the point normalized profiles.


le data are plotted on three axes. On the bottom axis channel l (latest time) is plotted alone, normalized to the calculated primary field. The intermediate to late time channels (chS - ch2) are plotted on the center axis. The early time channels (ChlO - ch6) along with a repeat of channel 5 for comparison are plotted on the top at a reduced scale.

The symbols used to identify the channels on the plots as well as the mean delay time for each channel is shown in table 2 below. The Y axis on each plot represents the difference from 10092) of channel l (or calculated primary field in the case of channel 1).

Table 2: UTEM PLOTTING SYMBOLS

UTEM SYSTEM MEAN DELAY TIMEChannel Number

12345678910

Base

Delay Time (msec)12.86.43.21.60.80.40.20.10.050.025

Frequency * 31 Hz

Symbol1\/DXA7XAO

l1I..l Skeleton Creek UTEM Survey (1991) Page 13/15

APPENDIX

Skeleton Creek Field Data

i-- Skeleton Creek UTEM Survey (1991) Page 14/15

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31M13NE00012.14559 MULL lGAN

A. LOGISTIOAL REPORTON THE SKELETON OREEKGRAVITY SURVEY,WINDIGO LAKE PROPERTIES,LARDER LAKE A R E A,NORTHEASTERN, ONTARIO

0E0

On behalf of:

Sudbury Contact Mines Ltd. 2302, 401 Bay Street P.O. Box 102 Toronto, Ontario M5H 2Y4

c/o

W.A. Hubacheck Consultants Ltd. 141 Adelaide St. West Suite 603 Toronto, Ontario M5H 3L5

Attention: Mr. David W. Christie Telephone: (416) 364-2895 Pax: (416) 364-5384

By:

JVX Limited60 West Wilmot St, Unit #22 Richmond Hill, Ontario L4B 1M6

Contact: Blaine Webster Telephone: (416) 731-0972 Pax: (416) 731-9312

JVX Ref: 9138B February, 1992

MAY 121992MINING UNOS BRANCH

ll ^ 3 \V(~3tK999"z. 1 4559 MULLIGAN 020C

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TABLE OP CONTENTS

1. INTRODUCTION .. .. . .... . ..... . . . . . . . . . . . . . . . . . . l

2. SURVEY LOCATION .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . l

3. SURVEY GRID AND COVERAGE ... . . . . . . . . .. .. .. ... . l

4. PERSONNEL .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5. SURVEY METHODS AND FIELD PROCEDURES .......... 3

5.1 Quantities Measured and Corrections ...... 35.2 Field procedures . . . . . . . . . . . . . . . . . . . . . . . . . 45.3 Magnetics Method .... . . . .... .. . . . . . . . . . . . . 4

6. GEOPHYSICAL INSTRUMENTATION . . . . . . . . . . . . . . . . . . 5

6.1 Gravity Meter. ... . . . . . . . . . . . . . . . . . . . . . . . . . 56.2 Automat ic Level........................... 66.3 Data Processing' System . . . . . . . . . . . . . . . . . . . 6

7. DATA PROCESSING AND PRESENTATION . . . . . . . . . . . . . 6

7.l Gravity/Leveling.................... . . . . . . 67.l Data Presentation..... . . . . . . . . . . . . . . . . . . . . 7

9. DISCUSSION AND SUMMARY, . . . . . . . . . . . . . . . . . . . . . . . 8

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vxFIGURES

Figure 1: Gravity Measurement Point

Figure 2: Raw CG-3 Gravity Versus Reduced Gravity

TABLES

Table 1: Skeleton Creek Grid Gravity Production Summary . . . . . . . . Page 2

APPENDICES

Appendix A: Instrument Specification Sheets

Appendix B: Gravity Reduction Equations

Appendix C: Plates (maps)

Plate 1: Profile/Posted Values Gravity and Elevations, Skeleton Creek Grid, Scale 1:5000.

Plate 2: Residual Gravity and Total Field Magnetics, Skeleton Creek Grid, Scale 1:5000.

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A LOGISTICAL AND INTERPRETIVE REPORT ON THE SKELETON CREEK GRID GRAVITY SURVEY,

THE WINDIGO LAKE PROPERTIES NEAR LARDER LAKE, NE ONTARIO

On behalf of


1. INTRODUCTION

Prom December 3rd to December 7th, 1991, a complete gravity survey was carried out by JVX Limited on behalf of Sudbury Contact Mines Ltd. (2302, 401 Bay Street, P.O. Box 102, Toronto, Ontario, M5H 2Y4) care of W.A, Hubacheck Consultants Ltd. (141 Adelaide St. West, Suite 603, Toronto, Ontario, M5H 3L5) on the Windigo Lake Properties, Larder Lake, NE Ontario.

JVX provided a geophysical technician, geophysical instrumentation, computer hardware and software, and all necessary accessories required to carry out the survey in a professional manner. A total of 5.20 line-kilometres of gravity coverage was achieved with readings taken at 25-metre station intervals. To aid with the gravity interpretation, data from a previous Total Field Magnetic survey is included.

Profile idealized grid maps and gravity model plates of the edited data were produced by JVX.

2. SURVEY LOCATION

The grid is located near Larder Lake, Ontario just off Hwy #66. The area may be found on topographic map NTS 32 D/4.

3. SURVEY GRIDS AND COVERAGE

A total of 5.20 line-kilometres of Gravity coverage was completed over the Skeleton Creek Grid and is detailed in Table 1.

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Line

1000S

1600S

2400S

TABLE l GRAVITY PRODUCTION SUMMARY

Skeleton Creek Grid 25-metre stations

(CG-3 gravimeter, C3E level)

From

700W

700W

700W

To.

700E

900E

1500E

Length

2200 ra

1600 m

1400 in

TOTAL . . . . . . . . . . 5220 m

Elevation of instrument

Elevation of Datum Plane

•Final gravity point of measurement

Datum Plane

Sea level

Figure 1 i GRAVITY MEASUREMENT POINT

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320 f

,Row CG-3 grovity Base i 5220 mgal* 1 cm * l mgal

Reduced CG-3 gravity Base - 5220 mgols 1cm s 1 mgal

Instrument height,above station Base s O-5m lcm s 0-05 m

Elevation of stations (ASL) Base : 340mlcm - 5 m

320 t

Ice covered lake (0-7m ice, Im water)

Figure 2 Raw CG-3 gravity versus Reduced Gravity

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4. PERSONNEL

Mr. Fred Moher - Geophysical Technician. Mr, Moher operated the Scintrex CG-3 gravimeter and Sokkisha C3E automatic level. He was responsible for data quality and the day to day operation and direction of the surveys.

Mr. Steve Bortnick - Geophysical Technician. Mr. Bortnick operated the Sokkisha C3E automatic level, acted as rod-man and assisted with the gravimeter readings.

Mr. Blaine Webster - Geophysicist. Mr. Webster provided overall supervision of the survey, assisted with interpretation and preparing this report.

Mr. Albert Vickers - Geophysicist. Mr. Vickers interpreted the data and prepared this report.

5. SURVEY METHODS AND FIELD PROCEDURES

5.1 Quantities Measured and Corrections (Gravity)

The acceleration due to gravity is a measure of the force exerted between the Earth and a mass on the Earth. The unit of acceleration (cm/aec ) is also called the gal. Variations in the graviational field of the Earth are due to several factors. The factor which are of interest to mineral exploration are variations in the rock densities, shapes, and sizes.

Gravity responses due to instrument (drift, temperature etc.), Earth-tides, latitude, free-air, and mass (Bouguer correction) must be removed from the measured responses in order to determine the physical parameters of a mineralized zone.

Instrument drift, temperature, and Earth-tide corrections are automatically made by the CG-3 to the raw gravitational measurement. Monthly gravimeter laboratory tests determine initial constants used to compensate for minor deviations in temperature, drift, and tilts. Earth-tide responses due to the sun and moon depend on latitude, longitude, and time - which are entered into the CG-3 unit.

Instrument height (see Figure 1) must also be measured by the operator at each station and stored in the CG-3's memory. The station elevation is measured separately using the automatic level. These two values are added together and used to calculate the gravity due to distance from the datum plane (free-air correction).

The Bouguer correction accounts for the attraction of material between the station and the datum plane. When unknown, an average density of 2.67 g/cc is assumed for these calculations. In most cases terrain and isostatic corrections are not necessary for such a small scale gravity survey over relatively flat terrain. This is the case with the Skeleton Creek Grid.

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Latitude corrections take into account different gravitational values due to latitude. When approaching a pole, this correction must be subtracted from the observed gravity. Conversely, when approaching the equator, it must be added.

5.2 Field Procedures (Gravity)

Survey lines with station pickets at 25 m intervals were surveyed twice; once with the CG-3 gravimeter and once with the C3E level.

For most cases a gravity reading was made by sampling and averaging (stacking) the one second samples until the stacked value was within an allowable error (ie. ERR < 0.01) given by:

ERR r SD //DUR-1

where SD is the standard deviation,DUR is the duration in seconds of the reading.

Readings taken on solid ground typically required 30 one-second samples with a tilt correction applied at the end of the measurement. Readings taken on shaky ground (eg swamps on windy day) required tilt corrections be applied to each one second sample for up to 60 seconds stacking time.

Two persons were required to level the lines - one rod-man and one leveller. A temporary bench mark for each grid was established in order to close level run loops. All le ve] loops closed to within 2 cm.

5.3 Magnetics Method

The magnetic method consists of measuring the magnetic field of the earth as influenced by rock formations having different magnetic p roper Lies and configurations. The measured field is the vector sum of primary, induced and remanent magnetic effects. Thus, there are three factors, excluding geometric factors which determine the magnetic field. These are the strength of the earth's magnetic field, the magnetic susceptibilities Of the rocks present and their remanent magnetism.

The earth's magnetic field is similar in form to that of a bar magnet. The flux lines of the geomagnetic field are vertical at the north and south magnetic poles where the strength is approximately 60,000 nT (or gammas). In the equatorial region, the field is horizontal and its strength is approximately 30,000 nT. The primary geomagnetic field is, for the purposes of normal mineral exploration surveys, constant in space and time. Magnetic field measurements may, however, vary considerably due to short term external magnetic influences. The magnitude of these variations is unpredictable. In the case of sudden magnetic storms, it may reach several hundred nT over a few minutes. It may be necessary therefore, to take continuous readings of the geomagnetic field with a base station magnetometer while the magnetic survey is done.

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The intensity of magnetization induced in rocks by the geomagnetic field P is given by:

I s kH

where:

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[M k is the volume magnetic susceptibility l H is the magnetic field field intensity

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The susceptibilities of rocks are determined primarily by their magnetite content since it is strongly magnetic and widely distributed. The remanent magnetization of rocks depends both on their composition ind their previous history. Whereas the induced magnetization is nearly always parallel to the direction of the geomagnetic field, the natural remanent magnetisation may bear no relation to the present direction and intensity of the earth's field. The remanent magnetization is related to the direction of the earth's field at the time the rocks were last magnetized. Interpretation of most magnetometer surveys is normally done by assuming no remanent magnetic component.

Since the distribution of magnetic minerals (magnetite, pyrrhotite) will, in general, vary with different rock types, the magnetic method is often used to aid in geologic mapping. In gold exploration, the magnetic Purvey is of particular importance because it may map areas of structural complexity, carbonatization, and silicification.

6. GEOPHYSICAL INSTRUMENTATION

6.1 Gravity Meter

One Scintrex CG-3 autograv system.

The Scintrex CGS-3 system responds to a change in gravity that alters the position of a proof mass balanced by a spring and a relatively small electrostatic restoring force. A capacitive displacement transducer senses the position of the mass.

An automatic feedback circuit applies DC voltages to the capacitor plates producing an electrostatic force on the mass which brings it back to null position. This DC voltage, which is sampled at one second intervals, is converted to a digital signal and processed to produce a relative value of the gravity at the reading site.

The average of the samples is displayed on the CG-3 along with a measurement indicative of the quality of the data. The sample is terminated and the final value given based on error limited established by the operator. Alternatively a reading can be terminated manually.

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Readings taken by the CG-3 Meter are internally processed to correct for instrument drift, small instrument tilts, temperature changes, and earth tides. Instrument heigth measurements can be recorded via the CG-3 console after each gravity reading. These data can be dumped to a computer/printer.

6.2 Automatic Level

One Sokkisha C3E automatic level and rod.

The Sokkisha C3E Automatic Level was used to determine precise elevations of the surveyed stations. The instrument is leveled by adjusting the tripod screws until the level bubble is within a limiting circle. Automatic compensators are magnetically damped to reduced vibration and increase accuracy. The integrity of the measurments must be verified by closing survey lines to a starting bench mark.

Specification sheets for the Scintrex geophysical instrumentation and Sokkisha C3E automatic level and rod are appended to this report (Appendix A).

6.3 Data Processing System

a) An IBM-compatible portable microcomputer.b) Processing software including communications and plotting programs.c) An Epson dot matrix printer and tractor feed paper.d) Consumable items such as gridded paper, pens and floppy disks.

7. DATA PROCESSING AND PRESENTATION

7.1 Gravity/Leveling

At the conclusion of each survey day the collected data were dumped to an IBM compatible microcomputer. Base station gravity readings taken at the start and end of each survey day were used to verify that instrument drift and temperature variations have been properly corrected by the CG-3 unit and are within survey specifications, as was discussed earlier.

Once edited, the gravity data were reduced to a datum plane. This is done by applying latitude corrections, and Bouguer corrections to the gravity data. The equations for these corrections may be found in Appendix B.

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Latitudes and longitudes were obtained from a 1:50,000 topographic map. These data were entered into the computer and corrections were made using JVX software. The final gravity values were thus reduced to a datum plane with excess mass removed, arid where earth-tides and latitude corrections have been done. These data are the Bouguer Gravity. Figure 2 has been included to illustrate the importance of the gravity reduction equations (see Appendix B) and the need for accurate elevations and survey procedures.

The reletively flat topography of the Skeleton Creek Grid did not required a further set of corrections called terrain corrections. It was not necessary to compensate for the very small amount of material missing in this area.

Residua] Bouguer Gravity

The residual Bouguer gravity was calculated by graphical methods. The graphical method is done by manually drawing the regional gravity component profile of the Bouguer data. For this particular data set, a large gravity gradient was observed increasing to the west - about 0.005 mgal for every vertical meter. For this reason, JVX software was used to remove the larger linear trend which is associated with the regional gravity. Once removed, profiles were generated to determine accurate residual profiles graphically.

7.2 Data Presentation

Final report quality profiles of the data at scale 1:5000 were drafted on mylar employing Geopak software and Nicolet Zeta 800 series digital drum plotter. Graphically derived residual Bouguer gravity component profiles of Bouguer reduced gravity and regional gravity component profiles (without the large linear gradient) are plotted with the magnetic data. The Skeleton Creek Grid maps are presented in Appendix C and gravity, as the following plates:

Plate 1: Profile/Posted Values Gravity and Elevations, Skeleton Creek Grid, Scale 1:5000.

Plate 2: Residual Gravity and Total Field Magnetics, Skeleton Creek Grid, Scale 1:5000.

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8. SUMMARY AND CONCLUSIONS

During December 1991 a gravity survey was carried out by JVX Limited on behalf of Sudbury Contact Mines Ltd. c/o W.A. Hubacheck Consultants Ltd. on the Windigo Lake Properties, Skeleton Creek Grid, Larder Lake, NE Ontario.

A total of 5.20 line-kilometres of Gravity/Leveling was surveyed. Magnetic data from a previous survey, was included with the gravity data to determine the linear features in question. Gravity readings were nominally taken at 25-metre station intervals.

The regional gradient removed from the gravity data reveals the anomalies that were first indicated by the magnetic data. The main Gravity /Magnetic anomaly, striking N-NW, is clearly shown on line L2400S at 825E. Prom the known geology, Heronian sediments overlay the bedrock and there is no known outcrop that defines this anomaly, therefore the anomaly is of higher density and at depth. This anomaly continues on line L1600S at sta. 400E where it is obscured by an adjacent anomaly striking W-NW.

On line L1000S the NNW anomaly is further obscurred by the W-NW anomaly. This WNW anomaly has a sharp amplitude that indicates a shallow response.

A weaker gravity and magnetic anomaly runs parallel to to the main N-NW anomaly on lines L1000S sta. 400E, L1600S sta. 775E and L2400S sta. 1425E. This anomaly may be either narrow and deeper or of a lesser specific gravity. On the west side of the grid a large gravity response is observed. The survey lines should be continued to define this anomaly.

The geophysical data presented here must be used in conjuction with available geological/geochemical data and other geophysical data, if available, before accurate exploration targets can be established.

The digital data from these surveys have been archived by JVX. The copy of all the data will be held by JVX on behalf of Sudbury Contact Mines Ltd. to a period of not less than five years. Sudbury Contact Mined Ltd. may at any time within this period request copies of the data on a time and materials basis.

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hesitate to call the undersigned at JVX Limited.

ir— Respectfully submitted,

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Albert Vickers, B.Se. Geophysicist

Webster, B. President

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APPENDIX AInstrument Specification Sheets

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and IGS-2/CG-4

AutogravAutomated Gravity Meters

How the Autograv's microprocessor-based automation contributes to ease of operation and high accuracy in gravity surveying:

* Reading resolution of 0.01 mGal * Measures at the simple press of * Records in solid state memorya key

* Worldwide range without * Outputs to a printer or computer resetting * Samples each second, stacks,

calculates standard deviations * No need to pack and unpack* Repeatability of 0.01 mGal and rejects spurious values between stations

The New Scintrex Autograv is a microprocessor-based, automated gravity meter with numerous revolutionary features. The CG-3 Autograv provides the essentials of a full worldwide range of 7000 mGals, without the need for resetting, combined with a measurement resolution of 0.01 mGal. Operator error is reduced through the automatic taking of readings which are continuously sampled for real time signal enhancement and statistical analysis. This ensures accurate readings which the Autograv then automatically corrects for earth tides and tilt errors. These readings are then stored In solid-state memory for later outputting to a printer, modem or microcomputer. All of this capability comes in a rugged, compact transit case which will slide conveniently under an aircraft seat.

l ll Brief Description

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The sensing element of this Gravity Meter is based on a fused quartz elastic system which takes full advantage of the remarkable elastic properties and strength of this material. The gravitational force on the proof-mass is balanced by a spring and a relatively small electrostatic restoring force. A change in gravity alters the position of the mass which is sensed by a capacitive displacement transducer. An automatic feedback circuit applies DC voltages to the capacitor plates producing an electrostatic force on the mass which brings it back to a null position. The feedback voltage, which is a measure of the relative value of gravity at the reading site, is converted to a digital signal and then transmitted to the instrument's data acquisition system for processing, display and storage.

The parameters of the CG-3 gravity sensor and its electronic circuits are chosen so that the feedback voltage covers a range of over 7,000 mGals without resetting. The use of low noise electronic design together with a highly accurate autocalibrating analog-to-digital converter results in a resolution of 0.01 mGal, enabling the gravity meter to be used for both detailed field investigations and large scale regional or geodetic surveys.

One of the convenient new features of the Autograv design is its electronic tilt sensors which provide greater accuracy than conventional bubble levels. The

l Vacuum Chamber l a

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^ J Feedback Voltage

Tilt Sensors,

, Gravity Sensor Module

jcroffrocessbr Memory

outputs from the sensors are displayed on high resolution meters on the instrument front panel and also transmitted to the data acquisition system for storage and digital display.

Protection from ambient temperature changes is provided by locating the quartz elastic system, the analog-to-digital converter, sensitive electronic components and the tilt sensors inside a high stability, two-stage, thermostatically-controlled environment. In addition, the entire gravity sensing mechanism is enclosed in a sealed vacuum chamber, isolating it from variations in atmospheric pressure. The instrument is inherently free from errors due to magnetic field variations as the sensor is made from non-magnetic fused quartz.

The Autograv is very simple to operate, requiring only a few keystrokes to take a measurement, store data in the solid-state memory and advance the station coordinates. Information is clearly displayed on a 32 character LCD display. The stored data can be output to a printer, modem, cassette recorder or microcomputer.

The packaging represents another innovation which makes operation easier. The integrated housing doubles as a carrying case, eliminating the need for unpacking and packing the sensor at each station. The lack of a cable connecting the sensor and battery minimizes accidental upsets.

Scintrex can supply software for use on a microcomputer. These fully documented, easy to use programs will correct, process, grid and plot your gravity data.

A gravity meter capability identical to that of the CG-3 is available by selecting instrumentation from the Scintrex 1GS Integrated Portable Geophysical System. Details regarding the IGS-2/CG-4 Autograv Automated Gravity Meter configuration and its additional features are provided later in this brochure. In terms of use for gravity measurements all specifications of the CG-3 are also met by the IGS-2/CG-4.

Autograv principle ol operation

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Features

Worldwide coverage with 0.01 mGal resolution. The CG-3 combines a measurement range of over 7,000 mGals without resetting and a reading resolution of 0.01 mGal. These two features enable the gravity meter to be used for detailed local investigations, comprehensive regional surveys or large scale geodetic studies.

Accurate, automatic measurements.With the fully automated capabilities of the Autograv, reading errors common to other older gravity meters due to optical parallax, operator judgement and mechanical design, are eliminated. Accurate measurements are taken by simply pressing a key. The measurement, along with other survey information, is stored in fail-safe, solid-state memory for later retrieval. As noise reduction is accomplished by a signal averaging technique, measurement time depends on local seismicity. Under most conditions reading duration is 20 seconds.

It is not necessary to record every measurement. Several readings can be taken before one is selected for recording. Alternatively, more than one value can be recorded with identical coordinates at different times.

Additional information can also be entered at the time of measurement for recording in memory. Eight blocks of data, each containing up to a five digit signed number can be recorded.

Accurate calibration. The use of a well defined guidance system for the proof-mass allows the gravity meter to be Initially calibrated with an accuracy of approximately 0.01 "/o on a tilt table. The calibration curve is linearized in software and the output is displayed directly in mGals. The accuracy of the calibration is ensured by the use of high stability electronic components and a software controlled procedure in which the analog-to-digital converter is calibrated by an internal reference before each reading.

Before shipment the calibration of each instrument is checked on a 120 mGal test range established and maintained by the Geological Survey of Canada.

Low drift The extremely stable operating environment of the quartz elastic system allows the long-term drift of the sensor to

AutogrmvAutomated Gravity Meter

be accurately predicted and a real time software correction reduces it to less than 0.02 mGals per day.

Rugged, robust sensor. The inherent strength and excellent elastic properties of fused quartz together with limit stops around the proof-mass permit the instrument to be operated without internal damping. Further protection is provided by a durable shock mount system.

Temperature and pressure control TheAutograv sensing element is sealed in a temperature-stabilized vacuum chamber to protect it from variations in the ambient temperature and changes in atmospheric pressure. The signal from a temperature sensor in close contact with the elastic system is used to make a software correction for any small residual temperature changes.

Electronic tilt sensors. Easy-to-read meters mounted on top of the instrument

are connected to electronic tilt sensors which provide greater accuracy, reliability and stability than conventional bubble levels. Leveling can be accomplished faster and operator errors reduced through this feature. Instrument tilt can also be displayed digitally and, as an aid to data quality control, it is automatically recorded at each station.

Automatic tilt compensation. Using constantly updated information supplied from the internal tilt sensors, the Autograv can automatically compensate measurements for changes in orientation. This operator selectable feature ensures that when measurements are taken on unstable ground errors due to instrument movement will be automatically eliminated.


Features

Automatic tidal corrections. Based upon geographical location and time zone information entered by the operator, the Autograv will automatically calculate and apply a real time tidal correction to each reading. This feature is operator selectable.

Solid-state data recording. Header information, observed values, station number, line number and time for each observation are all recorded for each measurement. The standard, internal 16K RAM solid-state memory is large enough to store up to 420 stations. To store more data, the memory can be expanded in 8K RAM increments to a maximum of 48K.

A set of built-in miniature batteries, charged from the main batteries, will keep the memory intact for several days in the event of main battery failure.

Outputs to many peripheral devices. The RS-232C port with keypad selectable baud rates and carriage return delays permit data to be output to many commonly available devices. A digital printer can be used to print data as listings or as profile plots. A modern can be used to transmit data to head office via a telephone line, or a magnetic tape recorder can store data for future computer processing.

Data can be output directly into a portable microcomputer so that data archiving on floppy disk, or additional processing, can be done in the field. In addition, several data dumps can be made sequentially from the memory.

Simple, automatic plots. Only a printer is required to output header information as well as data listings or profile plots in the field. This immediate, error-free output enhances in-field quality control and saves time and effort compared to manual data compilation.

When profiles are output onto a printer, any two parameters can be selected for simultaneous plot printing. Scale factors can then be selected which greatly enhance the resolution of the data to be plotted as well as a bias value which can be selected to establish a predetermined threshold for the plotting of data. In the profile displays, the actual station numbers and data values are also printed numerically,

Statistical parameters. A reading is obtained by continuously averaging a series of one second samples. The standard deviation of these samples can be viewed on the display and used by the operator to estimate the measurement time to obtain sufficient accuracy. The standard deviation is stored in memory.

Noise rejection. Measurement interference due to locally induced shocks and vibrations can be eliminated on a sample-by-sample basis. Values of more than four standard deviations from the mean during a measurement are automatically rejected.

Cycling mode. The cycling mode can be employed to automatically record a series of gravity measurements at a fixed site.

Analog output. A digital-to-analog converter provides an output for use with a chart recorder. When this feature is used with the cycling mode it provides a pseudo-analog record of the gravity meter output in real time.

Autograv outputs data to computers.

SC1NTREX VI.6 Cycle Timei 53 Li net l . Gri di

CG-3 GRAVIMETER / Cycling Mode R 1.0

1. Job i 0. D*toi ee/02/08Ser Not Operator i

2. 1.

Drift Correction

Gravity Reference Gravity constant Gravity cons-tant Drift constant!

Start Timei 09i 301 1 1 Datei 88/02/03

i 0.5 *1 1 E465.93B W2i -7.76229

0.2GMT Difference! E.

St at i on10.10.10.10.10.10.10..^^

Gr av.4232.304232.304232.304232.304232.304232.304232.29

ER.0.0020. 0030. 0030.0030.0030. 0030.003

Tilt x2.2.2.2.2.2.2.

Tilt y-4.-4.-4.-4.-4.-4.-4.

On-Line Tilt Corrected

Tilt y sensitivity! Tilt x sensitivityi Temperature constant i Deg. Lati tudeiDi

Temp.-1.69- .68- .69- .68- .68- .69- .68

*g. Longti

Tide0.0370.0370.0370.0370.0370.0360.036

tudei

Dur 436363636363636

i Re j0000000

178.6 175.4

-0. 183 43,6779.61

Time"17i 1E.1017i 16i 1017i 17*1017t IQi 1017i 19il01 7 1 20 1 1 017i21i 10

Typical A^^bav Printout: The header information presented at the top of each data listing provides a summary of the survey parameters andcnnKtnntswKd by the instrument Eight variables are recorded at each station: 1) corrected gravity. 2) standard deviation, 3) tilt about the X-axts, 4) tilt about the Y-axis 51 p wfy sensor temperature. 6) tidal correction. 7) duration of measurement and 8) number of rejected samples. In addition, at theend of each station s listings is the time at which the measurement was initiated

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Features

The base of the Autograv indexes easily into the tripod.

Power Supply. The internal, rechargeable battery provides sufficient power to operate the instrument throughout a normal survey day.

Worn inside the operator's coat during cold weather operation, the Belt Battery Pack is used to keep rechargeable batteries warm so that their lifetime can be extended.

The battery voltage can be checked anytime on the display and there is an audible low battery level alarm. If the batteries are not replaced or recharged, then the instrument will eventually stop measuring in order to eliminate the chance of corrupted data being measured or recorded.

In addition,' the instrument can be operated from any external 12 V DC power supply or battery capable of supplying 2 amperes. A special optional cable facilitates this application.

Speaks your language. Your operator will find it very easy to take measurements with the Autograv due to the fact that it can literally speak your own language, provided you use the Latin alphabet. The displayed messages are in actual words, not codes or symbols enabling the operator to quickly learn how to use the instrument in an error-free manner.

32 character LCD display. Messages and data are spelled out clearly in two lines of 16 characters each, on a display which is easy to read in either bright sunlight or dim conditions..

Program access lock-out. Once the survey parameters have been set, access to the programming function can be barred, preventing the unintentional change of system setup menus during surveys.

Real time clock. The built-in real time clock shows day, month and year as well as hour, minute and second, information which is recorded with each measurement. The clock is accurate to one second over 12 hours over the full operating range of the instrument. It is easily reset, if required. Time can be shown on the display, after two keystrokes.

Integrated Instrument housing. Thegravity sensor, solid-state control system and battery are integrated into a single, easy-to-use package. The base of the Autograv case incorporates a specially designed kinematic mounting system which indexes onto the tripod further increasing the stability of the instrument.

Wide operating temperature range. Allspecification are met over the -40"C to *45*C. Optionally, Autograv meters may be supplied rated to -r 50"C. For use below -20CC the Display Heater Option, and Belt Battery Pack should be used.

l lfutograv Accuracy

•The high accuracy of the Autograv•Gravity Meters comes about mainly "hrough automation, robust design, low

drift, precise calibration and freedom fromfares. Field repeatability tests are

arhaps the best measure of a gravity Bier's performance. Field testing of

Autograv meters demonstrates that mhe standard deviation of the miifference between individual headings and station means is toss

than 0.01 mGal, that is, less than the Meading resolution of the CG-3 and JGS-2/CG-4 Instrument models.

lOrangeville-Orillia Test Range

Ising a number of LaCoste and omberg G and D meters, the Geological

Survey of Canada has established a 140 test profile north of Toronto which srs a 120 mGal range. Typical runs this profile with Autograv Gravity

Meters result in: 1) the largest difference ^etween repeat readings at any station is 1.02 mGal, 2) the standard deviation of Vie difference between the individual readings and reference values is 0.008 pGal and 3) the linearity is 0.0150Xo.

i repeatabilities have been achieved i/en when the instrument is transported

between stations over badly corrugated, isealed roads.MS

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n0p.k VJ3r

y * 0-007 meal

l-0-02 -0-01 +0-01 tO-02

of noding* from ovtrogts {mGal)

9O Minutes

Autograv temperature test.

Temperature Coefficient

The automatic cycling mode and analog chart recorder output are ideal features for use when Autograv Gravity Meters undergo tests. They permit a permanent record of gravity to be made with changes over time.

In the high temperature test, an oven is placed over an Autograv which is heated from room temperature to above its maximum operating temperature over about 2 hours. The oven is then removed allowing the instrument to return rapidly to room temperature. Typically, the temperature coefficient of an Autograv is less than 0.001 mGal/'C within its operating temperature range.

For the low temperature test, a series of readings is made at room temperature, then the Autograv is placed in a freezer at -30*C for approximately 4 hours. It is removed and a series of readings started immediately. Typically the first few readings shown an offset of up to 0.003 mGal. Thereafter there is no offset as a result of the 50"C temperature shock.

Oulvard

Pressure Coefficient Tests

To determine the pressure sensitivity of an Autograv it is placed in a vacuum chamber. The pressure is quickly reduced from 1 to 0.15 atmosphere where it is held for up to 1 hour before being quickly returned to normal pressure. While offsets of up to 0.1 mGal occur at the two step function changes, the observed gravity values quickly return to normal. The pressure coefficient is typically less than 0.03 mGal/atm. Errors are therefore negligible for the maximum pressure changes which might be observed in the field. This strenuous test also proves that no damage will be done to an Autograv which is transported in an unpressurized aircraft.

r- —

—

"-1rrl T frf mir— | 1 | H

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IT"' l ; T"f 01 mGal [-h: if-

M T 'Mi"1 i Prtssurr••j- i - , , .

OlSotm. . . ,

PH]''M:-T- -t i

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1 -7

O 30

Autograv pressure test

60 M i nun i

Oct. 87* A

A *A

* * *

*002

.001

0 OO -001

Oifftrtnci btlmtn

mtoiurtd and

rtltrtnci g ravity

voluts (mGal)

0————— 1 ——

0

U

ttSO

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TS

63

too83

asMO

Gravity (

Distance

m Got)

to notion (km)

bf results for an Autograv on the Orangeville-Orillia Test Range.

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Autograv Accuracy IGS-2/CG-4 Configuration

Magnetic Field Coefficient

Gravity Meters having metal elastic systems may exhibit errors due to orientation in the earth's magnetic field or when used over highly magnetic rock types. To prove the insensitivity of an Autograv to such errors, a coil is oriented along each of three perpendicular axes and fields of 4-15 and -15 Gauss (30 to 60 times the earth's magnetic field) are applied. The maximum deflection is no more than 0.02 mGal. This test demonstrates that the earth's magnetic field will not cause measurement errors and that no damage will be done to an Autograv which is exposed to strong industrial magnetic fields.

60 90 M i n u f 11

Autograv magnetic field test

The IGS-2/CG-4/MP-4 configuration permits one operator to efficiently perform both gravity and magnetic measurements.

MP-4 Magnetics

EM-4 EM

IGS-2 System Control Console

IPRF-3 IP CG-4 Gravity

The versatile IGS-2 system Control Console reduces instrumentation, capital costs, servicing expenses and operator training to a minimum.

The performance specifications of the IGS-2/CG-4 configuration are identical to those of the CG-3. The modular design of the IGS-2/CG-4, however, allows the user greater flexibility as the IGS-2 Console can be removed from the CG-4 Console and used with a variety of other Sensor Options which are available from the KSS family of instruments. Combinations of these IGS Sensor Options can reduce your investment in instrumentation and permit a single operator to carry out certain combined measurements, thereby reducing survey costs.

A CG-3 can be upgraded to an IGS-2/CG-4 by returning it to the Scintrex plant for modifications to the data acquisition/control unit.

To perform gravity measurements using an IGS-2 System Control Console, the following items are required: 1) A CG-4 Carrying Case, 2) A CG-4 Automated Gravity Meter Sensor which is installed, at the factory, inside a CG-4 Carrying Case, 3) An EPROM that contains the IGS-2/CG-4 gravity program which is installed on the IGS-2 microprocessor board, 4) A Gravity Method Printed Circuit Board for installation inside an IGS-2 Console, and 5) Standard CG-3 accessories.

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Technical Description of the CG-3 and IGS-2/CG-4 Autograv Automated Gravity Meters

Reading Resolution0.01 milligal.

Minimum Operating Range7000 milligals. without resetting.

Residual Long-term DriftLess than 0.02 milligal day.

Typical RepeatabilityLess than 0.01 mGal standard deviation.

Range of Automatic Tilt Compensation

- 200 arc sec.

Dimensions240 mm x 310 mm x 320 mm.

Weight12 kg. including standard battery.

Power Consumption5 W at ' 25'C.

Operating Temperature Range-40"C to ^ 45"C. Optionally to ± 50"C.

Interval Between Readings in Cycling ModeAdjustable from 42 to 99999 seconds.

Standard Memory16K RAM internal solid-state memory records up to 420 gravity observations. Memory can be expanded to 48K RAM.

Noise RejectionSamples of more than 4 standard deviations from the average are rejected, if this feature is selected upon initialization of the instrument.

Displayed and Recorded DataCorrected Gravity. Standard Deviation, Tilt about the X-axis. Tilt about the Y-axis, Gravity Sensor Temperature, Tidal Correction, Duration of Measurement, Time at start of measurement and Header Information (including date and initialization constants).

Digital Display32 character, 2 line LCD display.

Keyboard Input14 keys for entering all commands, coordinates, header and ancillary

Real Time ClockDay, month, year, hour, minute and second. One second resolution, 1 second stability over 12 hours.

Digital Data OutputRS-232C serial interface. Data outputs in 7 or 8 bit ASCII, one start, two stop bits, no parity format. Baud rate is selectable at 110. 300, 600, 1200 and 2400 baud. Carriage return delay is keyboard selectable in increments of one from O to 999. X-on/X-off handshaking protocol.

Standard Accessories

TripodGravity meter tripod with built-in bubble level and 0.5 m leg extensions: 2.0 kg.

Battery5.7 Ah. 2.2 kg.

Battery Charger115'230 VAC; 50/60 Hz.

Optional Accessories

Belt Battery PackWorn inside the operator's coat during cold weather operation, the Belt Battery Pack is used to keep rechargeable batteries warm so that their lifetime can be extended.

RS-232C Cable and AdaptorIncludes a special RS-232C data transfer cable and adaptor. Used for communicating with peripheral devices.

Minor Spare Parts KitIncludes 2 keyboard diaphragms and two fuses.

Display HeaterRequired for cold weather operation. Powered by main batteries, thermostatically-controlled to turn off above -20"C.

Chart Recorder CableThis cable interfaces with any standard chart recorder.

External Power CableRequired for operation of the instrument from either an external 12 V DC power supply or battery.

Carrying Case for AccessoriesA case can be supplied which will accommodate the Tripod, Belt Battery Pack, Battery Charger, RS-232C Cable with adaptor and manuals.

Language OptionsIn addition to English, a second language using Latin characters can replace French.

Memory ExpansionMemory can be added to complement the 16K RAM Standard Memory. This can be done in up to four 8K RAM increments to raise the system memory to a total of 48K RAM. Each 16K RAM increment holds as many readings as the Standard Memory.

Peripheral Devices Scintrex can recommend and supply suitable digital printers, microcomputers, modems and cassette tape recorders.

Applications Software Scintrex supplies fully documented software written for the IBM family of microcomputers, and certain other microcomputers, which use the MS DOS operating system. This software permits: 1) archiving of data, 2) processing of data and 3) profile and contour plotting.

SCINTREX

222 Snidercroft Road Concord Ontario Canada L4K 1B5

Telephone: (416) 669-2280 Telex: 06-964570 Fax:(416)669-5132

Geophysical and Geochemical Instrumentation and Services

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AUTOMATIC LEVEL

Standard Deviation for 1km Double Run Levelling _ ±2.0 mm

SOKKISHA

AUTOMATIC LEVELl

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The Builder's Automatic Level C3E has been developed by Sokkisha to provide rapid level surveying even in restricted spaces, for small-scale civil engineering and construction work. Effective and time-saving operation is ensured by the combination of these three special features:— speedy setting-up on convex head tripod;— magnetically-damped automatic compensator;— ease of handling.The C3E has an important part to play as an 'all-rounder' for all kindsof surveying work and represents excellent value at today's selling price.

C3E designed for restricted spaces The C3E's minimum focusing distance of only 0.3m enhances its versatility, and allows it to be used even in restricted spaces.The easy-to-attach diagonal eyepiece (DE11, optional) is available.

Sotting up on uneven ground Even on rough ground, it is easy to set up and level the C3E. Just slide the instrument over the convex tripod head to centre the bubble in the level.

Easy measurement It is easy to measure horizontal angles. Simply sight the first target, and rotate the zero-setting screw to set the hori zontal circle to zero. Swivel the instru ment to sight the second target and read out the angle.

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Zero-setting screw

Simple distance measurement It is easy to find the midpoint. The distance between the top and bottom stadia lines on the reticle re presents 1/IOOth of the actual distance. Simple alignment with the levelling rod and a quick calculation will find the midpoint.

SPECIFICATIONS

TelescopeLength ...................................... 210mmImage........................................ ErectObjective aperture ....................30mmMagnification ............................ x 22Field of view (at 100m)............ 1"25' (2.5m)Resolving power ...................... 4"Minimum focusing distance ...... 0.3mStadia multiplication constant.. 100 Stadia additive constant ........... O

Horizontal circleDiameter .................................. 90mmReading .................................... 1" or 1 gon

CompensatorDamping system ....................... Magnetic

system Setting accuracy ....................... 10.5"Compensating range .....,............ ±10"

Sensitivity of levelCircular level ............................ 10V2mm

Standard deviation for 1 km double run levelling ......,....... ±2.0mm

WeightInstrument ............................... 1.8kgCase ......................................... 1.8kg

The internationally-recognized magnetic compensator The C3E is equipped with a magnetically damped automatic compensator. This magnetic damping system, which is combined with a special arrangement of suspension wires, provides a short damp ing time, perpetual stability, and trouble- free control under any conditions, even high vibration and movement. Just positioning the bubble in the circle ensure accurate and time-saving opera tion in levelling work.

* Designs and specifications are subject to change without notice due to technical advances.

Sokkisha Company, LimitedKeio Yoyogi Building,1-1, Tomigjaivl-chome, Shibuya-ku, Tokyo, 151 JapanPhone: 03^02501 Fax:03-465-5203Telex: SUR5DK J28518 Cable SOKKISHA TOKYO

Telephone (416) 889-9534 Fax (416) 88*9552

1-800-263-3581

A-2-E-3-8903 Printed in Japan


APPENDIX B Gravity Reduction Equations

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Final Gravity Calculations (measurements reduced to datum plane)

Latitude Correction r - { 0.00081 * sin(2L) * [(Y-B)*cos(A)] }

Free-air Correction - \ { 0 .3086 * [(E-H)-D] }

Bouguer Correction c - { 0.0419 */^* [E-D] }

where: L is degrees latitudeY is station of measurement in metresB is reference station in metresA is azimuth of survey line in degreesE is station elevation in metresI is instrument height in metresD is datum plane elevation in metres

y is average density (2.67gXcc)

CG-3 data - Measured Gravity 4 Earth-tide Cor. t tilt/temp./drift Car {raw grav.)

Final Gravity r Latitude Cor. * Free-air Cor. + Bouguer Cor. * CG-3 data

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APPENDIX CPlates

Plate 1: Profile/Posted Values Gravity and Elevation, Skeleton Creek Grid, Scale 1:5000.

Plate 2: Residual Gravity and Total Field Magnetics, Skeleton Creek Grid, Scale 1:5000,

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31M13NE0eei a.14559 MULLIGAN

l l ll REPORT ON

GROUND MAGNETIC AND VLF-EM SURVEYS,

l SKELETON CREEK GRID, WENDIGO LAKE PROPERTIES,

m RATTRAY AND MULLIGAN TOWNSHIPS,

LARDER LAKE MINING DIVISION, ONTARIO,

l N.T.S: 31 M/13

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Francis L. Jagodits, P.Eng.


December 1991

030


TABLE31M13NE0eei 2 .14559 MULLIGAN

1. INTRODUCTION . . . . . . . . . . . . . . ,

2. SURVEY SPECIFICATIONS AND INSTRUMENTATION

3. DATA REDUCTION AND PRESENTATION . . . . ,

4. DISCUSSION OF THE RESULTS . . . . . . . ,

4.1 Geological Comments4.2 Previous Work . , . .4.3 General Comments . . .4.4 Detailed Discussions .

5. SUMMARY AND RECOMMENDATIONS

6. APPENDIX . . . . . . . . .

MAP NUMBER

WLP-1

WLP-2

WLP-3

WLP-4

WLP-5

WLP-6

030C

1

2

4

5

5556

8

. 10


TITLE TITLE

Topographic Base Map l:5 000

Ground Magnetometer Survey, 1:5 000 Total Magnetic Field Postings S Profiles.

Ground Magnetometer Survey, 1:5 000Contours of Total MagneticField.

Ground VLF-EM Survey, 1:5 000 Postings St Profiles of NAA Frequency.

Ground VLF-EM Survey, 1:5 000Contours of Filtered NAAFrequency.

Ground VLF-EM Survey, 1:5 000 Postings St Profiles of NSS Frequency.


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WLP-7 Ground VLF-EM Survey, 1:5 000

• Contours of Filtered NSS Frequency.

— WLP-8 Ground Geophysical Surveys, 1:5 000 l Interpretation Map.

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1. INTRODUCTION

Sudbury Contact Mines Ltd. retained the services of TechTerrex Inc. of Oakville, Ontario to conduct ground geophysical surveys over the Skeleton Creek Grid, which is part of the Windigo Lake Properties. The grid covers an area where an earlier airborne geophysical (QUESTEM) survey have delineated a number of conductors. The combined ground magnetic and VLF-EM survey took place during the latter part of November, 1991 and 35 line km of surveying was completed to cover the survey lines and the base line.

The northern part of the Skeleton Creek Grid is in Rattray Township and continues into Mulligan Township to the south, in the Larder Lake Mining Division. The Windigo Lake property and the grid is about 25 km northeast of Engelhart, Ontario and can be accessed via Highways 11 and 569 and forest access road. The location of the property is indicated on Fig.l.

The Skeleton Creek Grid covers 39 claims which are listed in Table I.

The following report presents the survey results, describes the survey procedures and instrumentation, discussion of the results and recommendations.



Scale 1=2,000,000

Skeleton Creek Grid LOCATION MAP

Rattray and Mulligan TownshipsLarder Lake Mining Division

OntarioNIS: Figure "


Rattray Township

Mulligan Township

TABLE I.

LIST OF THE SURVEYED CLAIMS

109017610901771090178109027810902791090280

10902281090029109023010902311090232109023310902341090235109023610902371090238109024010902411090242

109028310902841090285116823911682431168276

109024310902441090245109024610902471090248 l Off Q&4 910902501090251116824711682511185659



2. SURVEY SPECIFICATIONS AND INSTRUMENTATION.

The surveys were conducted along lines 200 m apart. Observations of the earth's total magnetic field and the in-phase and quadrature components of the VLF magnetic field were made simultaneously every 12.5 m along the survey lines and the base line. The OMNI PLUS instrument manufactured by EDA Instruments of Concord, Ontario was used for the survey.

The day-to-day and diurnal variations of the earth's magnetic field were recorded, in digital format, using an EDA OMNI IV recording base station magnetometer system which was located at 155S/515E (grid co-ordinate system, or latitude: 47D 55' 30'' and longitude: 79D 34' 30''). The accepted base station value is 58 150 nT.

The VLF transmitters located at Cutler, Maine (NAA) and at Annapolis, Maryland, operating at 24.0 kHz and 21.4 kHz respectively, provided the primary electromagnetic field for the VLF-EM survey.



3. DATA REDUCTION AND PRESENTATION,

The planimetric features of the grid and the location of the claims, together with the claim numbers are shown map WLP-1 (scale 1:5 000), which is also used to present the interpretation of the ground geophysical surveys (map WLP-8).

The observed total field magnetic data were corrected for the day-to-day and diurnal variations of the magnetic field utilizing the recordings of the base station magnetometer. The data are presented in two formats:

- as profiles along the lines and the base line, the profile base value being 58 175 nT; the corrected total magnetic field is indicated at each station and,

- as contours of the corrected total magnetic field, basic contour interval is 5 nT, with larger intervals in areas steep gradients (maps WLP-1 and WLP-2).

The VLF-EM survey results are also presented on base maps showing the lines and the stations. The results are given in two formats, for each of the data obtained from NAA and NSS transmitters. The formats are:

- profiles of the in-phase and quadrature components, the observed values are indicated at each station (maps WLP-4 and WlP-6) and

- as contours of the filtered (Fraser filter) in-phasecomponent, the filtered values are shown on the maps (maps WLP-5 and WLP-7).


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4. DISCUSSION OF THE RESULTS.

4.l Geological Comments

The following comments are a from a letter by David M. Christie,providing a brief overview of the geology: "..the Skeleton Creek grid overlies Huronian/Cobalt group sediments with good majority being diamictites, but also including argillites, quartzites, arenites and wache. In addition a younger diabase dike trending NE over both the Skeleton grid and the Icefish grid, and an older set of diabase is known to lie beneath the Huronian sediments trending NW".

4.2 Previous Work

In the fall of 1990 Sudbury Contact Mines Ltd. contracted Questor Surveys Limited of Brantford, Ontario to conduct a QUESTEM, airborne time domain (digital) electromagnetic-magnetic survey. The survey covered Skeleton River Grid and the QUESTEM anomalies are shown on the Interpretation Map. The locations were transferred from an enlarged QUESTEM anomaly map, hence the locations should only considered as approximate.

4.3 General Comments

The magnetic domains shown on the Interpretation Map were outlined on the basis of the varying magnetic characteristics. The domains denote zones within which the magnetic characteristics remain consistent. Individual magnetic bodies are also denoted on the Interpretation Map. The magnetic domains and magnetic bodies were delineated studying the magnetic profiles as well as the derived contour map.

The VLF-EM conductor axes were determined using data collected at both frequencies (NAA and NSS) and are classified as "poor, mediocre and good" based on the amplitude and character of the responses. The profile data and the contour maps of the filtered in-phase components were used for the study.



4.4 Detailed Discussions

The dominating magnetic features are the expressions of the north-northwest and northeast striking diabase dykes, denoted as di and d2 respectively. The magnetic profiles over the north^ northwest striking di clearly indicate an easterly dipping dyke which is about 30 m deep (approximate depth, derived from graphical depth determination along L 1400S). The location of the younger d2 is not as well defined, but the intersection of the two dykes along L 1000S, near the Base Line should be fairly accurate. The contacts of the diabase dykes are generally non-conducting, although there are sections of the contacts with VLF conductor correlation, like VI in the northwest. It is also noted that a number of the QUESTEM conductor indications lie in the vicinity of the interpreted contacts of the diabase dykes.

Discoveries of the present magnetic survey are the north- northwest striking dyke indications d3? and d4, northeast of and sub-parallel to di. At the extreme north end of d37, strong, well defined, nearly north-south trending Conductor V2 could very well indicate a structure which may form a part of the contact of the dyke. The southerly continuation Conductor V3 is in the vicinity of the perceived intersection of di and d2. Conductor V4 at the southeastern end of d3? may indicate the eastern, conductive contact of d3?. The magnetic signature of d4 is superimposed on the dominating profile of di, but they are on the whole clearly recognisable. The subsidiary d4 is about 100 west of and subparallel to di.

The south-central part of the magnetic contour map is covered by gently varying magnetic field and is outlined as Domain A, depicting an zone of non-magnetic sediments underlain by generally non-magnetic basement. The three outlined magnetic anomalies could be generated from the basement. The north-northwest striking Conductors V5 and V6 are sub-parallel to the older dyke, depicting shear and/or faults.

It was noted earlier that the magnetic profiles over di suggest an easterly dipping feature. The well developed magnetic low immediately west of the dyke anomaly is in excess of a magnetic low which would be expected from a easterly dipping, nearly north- south striking magnetic body( i.e. di). These zones of magnetic lows are outlined as Domains B and B?. It is suggested that the domains depict altered basement rocks lacking magnetite.

North-northwest striking Conductors V7, V8 and V9 are within Domains B and B?, once again depicting structures paralleling di, which is more than likely occupies one the major north-northwest fractures.



Domains C and D along the western perimeter of the grid are similar in character, both enclosing a number north-south striking features, in contrast with Domain A. The main difference between the two domains is the somewhat deeper source indications in Domain B. Graphical depth determination alongL 2000S suggets that the depth of the source Ml could be in the order of 70-100 m. The nearly north-south V10, Vll, V12 and V13 may indicate conductive shear and/or faults in the sedimentary sequence.

The northeasterly half of the grid is covered by Domain E which is characterised by somewhat more varying magnetic field than in Domain A. Apart from the dyke anomalies (di, d2, d3 and d4) there are only a few anomalies within the domain, the most significant is M2, which may have a somewhat deeper source. The magnetic information suggest generally non-magnetic basement, the magnetic anomalies representing more magnetic volcanics(?). The long strike length, north-northwest trending Conductors V14 and VIS are noteworthy, again indicating zones of weaknesses. In addition numerous, nearly north-south striking conductors were also identified.

The dominant directions of structural deformation are: (a) north-northwest as indicated by the dykes and the VLF-EM responses and (b) northeast deraarked by d2 and interpreted faults and/or shear zones which are based on VLF-EM evidence, mainly located north of d2.



5. SUMMARY AND RECOMMENDATIONS

The ground magnetic survey have outlined one major (di) and two subsidiary north-northwest striking dykes (d3? and d4) which intersect with a younger northeast trending dyke (d2). There are several north-northwest striking VLF-EM features suggesting that the north-northwest direction may have been one of the principal direction of structural deformation along which the diabase have intruded. The approximate depth to the top of the major north- northwest trending dyke is 30 m.

The easterly two thirds of the grid is characterised by gently varying magnetic field, the similar magnetic Domains A and E indicating generally non-magnetic basement. In Domains C and D, the steepened flanks of the anomalies indicate shallower depth of burial. A number of the anomalies of Domains C and D are superimpositions on broader features suggesting once again sources which could be in the sedimentary sequence (?).

The unique Domain B flanking the major north-northwest striking dyke is believed to demark a zone deficient in magnetite, possibly due to alteration.

The outlining of the axes of the QUESTEM conductors without studying the analogue traces is difficult, but it would appear that a case could be made for joining-up the QUESTEM anomalies along the western perimeter of the grid, giving a nearly north-south striking conductor. This assumed conductor does not appear to show correlation with any of the magnetic or VLF-EM features.

Ground electromagnetic surveys to locate the airborne indications, to define the characteristics of the conductors in detail are recommended. If a ground em survey have been conducted or it is carried out presently, the integration of the results of the magnetic, VLF-EM and the ground em surveys will be an essential follow-up exercise.



Specific recommendations for further work very much depends on the perceived geological interests and will be made after discussions with the Consulting Geologists.

Respectfully submitted,

/l—

Franci^l L. Jadodits, Dipl.Consulting Gedphysicist


6. APPENDIX

l l l l l l l l l l l l l l l l ll Savaria Geophysics Inc.

l

11

SURVEY STATISTICS

l l ll Survey Dates: November 16, 17, 20, 21-24, 1991

B List of Surveyed Claims; See Table I

M Total Line km Surveyed; 32

Operator; M. C. Wilson, 199 Sheraton Court, Oakville, Ont. L6L 5N3

Drafting; R. T. Marcroft, 10 Hurontario Street, Mississauga, Ont., M L5G 3G7

I Reporting; F. L. Jagodits, P. Eng. , Consulting Geophysicist, 353 Berkeley Street, Toronto, Ont. M5A 2X6

l

l

l l

l l l

l Savaria Geophysics Inc

l

l l l l l l

2.14559 MULLIGAN 040

AMENDMENT

TO

REPORT ON

GROUND MAGNETIC AND VLF-EM SURVEYS,

SKELETON CREEK GRID, WENDIGO LAKE PROPERTIES,

RATTRAY AND MULLIGAN TOWNSHIPS,

™ LARDER LAKE MINING DIVISION, ONTARIO,

l N.T.S: 31 M/13

l

l

l

for


l

lFrancis L. Jagodits, P.Eng.

l Consulting Geophysicist

December 1991

l

l

TABI 31M13NE8801 2.14559 MULLIGAN 040C

1. HORIZONTAL LOOP ELECTROMAGNETIC TESTS

1.1 Preamble . . . . . . . . . . ,

1.2 Results . . . . . . . . . . ,

l

l

l


MAP NUMBER

WLP-EM-1

WLP-EM-2

WLP-EM-3

WLP-EM-4

WLP-EM-5

WLP-EM-6

TITLE

Horizontal Loop EM Survey, 3555 Hz Postings S Profiles, 200 m Coil Separation, Skeleton Creek Grid.

Horizontal Loop EM Survey, 1777 Hz Postings fi Profiles, 200 m Coil Separation, Skeleton Creek Grid.

Horizontal Loop EM Survey, 444 Postings St Profiles, 200 m Coil Seaparation, Skeleton Creek Grid.

Horizontal Loop EM Survey, 3555 Hz Postings S Profiles, 250 m Coil Separation Skeleton Creek Grid.

Horizontal Loop EM Survey, 1777 Hz Postings fe Profiles, 250 m Coil Separation Skeleton Creek Grid.

Horizontal Loop EM Survey, 444 Hz Postings S Profiles, 250 m Coil Separation, Skeleton Creek Grid.

TITLE

1:5 000

1:5 000

1:5 000

1:5 000

1:5 000

1:5 000



1. HORIZONTAL LOOP ELECTROMAGNETIC TESTS

1.1 Preamble

The test were conducted along Lines 2400S and 2600S employing the Apex Parametrics MaxMin II Plus horizontal loop em (HLEM) system. The in-phase and quadrature components of the secondary magnetic field were recorded in digital format using the Apex Parametrics MMC Digital Recorder.

The components were observed at three frequencies: 444 Hz, 1777 Hz and 3555 Hz. The two lines were surveyed using 200 m and 250 m transmitter-receiver coil separations (coil separation). The observation intervals were 12.5 m and 25 m at the 250 m and 200 m coil separations respectively.

The results are presented on copies of the base map prepared for the original survey as profiles of the in-phase and quadrature components (3555 Hz: WPL-EM-1, 1777 Hz: WPL-EM-2 and 444 Hz: WPL-EM-3).

1.2 Results

The results at both coil separation imply shallow sources, which may be covered by conductive overburden as indicated by the periodic reversal (to positive relative to local background) of the quadrature component. The conductor axes are shown on the profile map of 1777 Hz data obtained using a 200 m coil separation (WLP-EM-2). The anomalous signatures describe multiple conductors, excepting the anomalies centred about St. 6+65E/L-2400S and St.2*50EXL-2600S. The better defined anomaly at 6+65E/L-2400S, extending to L-2600S, correlates with the western interpreted contact of the north-northwest dyke. Computations using the 200 m and 250 m, 444 Hz data result in depths 6 m to 8 m and a conductance of 3 Siemens (S, conductivity-thickness product). As a consequence of the possible effects of the conductive overburden on the quadrature component, the results of the computations should be treated with caution.

The weaker indication along L-2600S at St. 2+50E gives a depth of 5-10 m and conductance of 3-4 S. One of the conductor of a multiple conductor assemblage is delineated at St.12+445E/L-2400S, which can be extended to the south to L-2600.

The features outlined by the test survey appear to be shallow, poor conductors.


, Development

Ontario

Report of Work Conducted After Recording Claim

Mining Act

ITS ttmlnn Nimwtr ___DOCUMENT Ri3280-

3ini3NEeeai 2,14559 MULLIGAN

*ereonal Information collected on this form l* obtained under the authority of the M! hit collection ahould be directed to the Provincial Manager, Mining Lands, Mini Sudbury, Ontario. P3E 6A5, telephone (705) 670-7264.

Instructions: - Please type or print and submit in duplicate.- Refer to the Mining Act and Regulations for req

Recorder.- A separate copy of this form must be completed for each Work Group.- Technical reports and maps must accompany this form in duplicate.- A sketch, showing the claims the work is assigned to, must accompany this form.

300

Recorded Holders)Sudbury Contact Mines Ltd.

Address 401 Bay St., Suite 2302, P.O. Box 102, Toronto, Cnt. M5H 2Y

Mining DivisionLarder Lake Division

Dates22*' From!November 1. 1991

Township/AreaSkead Township

ulwtt No*198617

Telephone No. (416) 947-1212

M or Q Plan No. M-387

To: December 20, 1991

Work Performed (Check One Work Group Only)WorkGroup

x Geotechnical SurveyPhysical Work, Including Drilling

RehabilitationOther Authorized Work

AssaysAssignment from Reserve

Type

Linecutting, Magnetics, VLF-EM and HLEM

REOFlVPnMAY 1 2 1QQ9 - - -- •-•- ——mn i j. u U JC

MINING LANDS BRMiMCH/Li In*

W^^^^ i f 1 " 00

•AA —

Note: The Minister may reject for assessment work credit all or part of the assessment work submitted if the recorded holder cannot verify Expenditures claimed in the statement of costs within 30 days of a request for verification.

Persons and Survey Company Who Performed the Work (Give Name and Address of Author of Report)Name

Francis L. Jagodits, Savaria GM.C. Wilson, Techterrex Inc.,

Address

ophysics, Inc., 353 Berkely St., Toronto, Ont. MSA-2X6199 Sheraton Court, Oakville, Ont. L6L 5N3

(attach a schedule If necessary)

Certification of Beneficial Interest * See Note No. 1 on reverse side1 certify that at the time the v report were recorded In the ciby the current recorded ho*

wrk was performed, the claims covered in this work DM* Refewd^S Hewer or Agen^Sigh^W,) irrent holder's name or held under a beneficial interest pgb. 18/92 J /J* l \a*. '/M\M/ mi. J r

Certification of Work Report

if

" ^ \1

1 certify that ! ru.vs :. penc-na! knowiedc~ of 'he facts set forth in this Work report, having performed the work or witnessed same during and/or *ftv Its completion and annexed report Is true.

Name and Address of Penon Certifying S) iDavid W. Christie, 141 Adelaide St. WEst, Suite 603/ Toronto, On/.yMSH 3

fi f t .iTeteponeNo.

(416) 364-2895

For Office Use OnlyTotal Value Cr. Recorded Date Rew

1 f^/

Date CeabBed/By (Signature), 1 i -^7

Feb. 18/92 T7^jV///^

S^^

^^ ^ RECEIVED,

U~ . cJ~l (^ **.foemed Aporoval Date t Date Approved

jT'lor Amendments Sent

Received StaiW Mtt

i

TIM6^

\MUtn u-uxfc UNGDMSiON

'EB2-1 Wit

{faZO*^0241(0*91)

SUDBURY CONTACT MINES LTD. WENDIGO 'A' AND 'B' PROPERTIES

CERTIFIED STATEMENT OF EXPENDITURES

WendJgo "A" Property

LjnecuttingSkeleton Creek Grid i235Am x 32.2kmIcefish Grid $235/km x 4.6km

Magnet ics/VLF-EM Skeleton Creek Grid Icefish Grid

x 32.10km x 4.6km

HLEMSkeleton Creek Grid *225Xkm x 8.8kmIcefish Grid *2257km x 3.4km

Drafting and Reporting

Gravity Survey Skeleton Creek Grid Mob-demob

5 days x 51250/day

UTEM Survey - Skeleton Creek GridMob-demobStandby ilGOO/day x l standby dayWorking Days t2350Xday x 8 daysInterpretation and ReportTruck and Van RentalField Expenses (Food, Fuel and Motel)

Field Supervision Project Geologist Contract Geologist Field Expenses Fuel

^225/day x 2 1/3 5267.50/day x 2 days

Sub Total:

W end i go "B" GridLinecuttingMagnet i cs/VLF-EMHLEMDrafting and Reporting

*235Xkm x 21.9 kmms/km x 21.9 km

x 18.6 km

Sub Total: GRAND TOTAL:

February 17, 1992

7,567.001,081.00

7,222.501,035.00

1,980.00765.00

67.00

1,500.006,250.00

2,500.001,600.00

800 - 00 ,200.00

1,260.00 l 2 19923,614.36

535.OO 1- 183.54'. 41.00".

*57,725.65

5,146.50" 4,927.50^ 4,185,00-

33.00^ tl4.292.00 *72,017.65

I, David W. Christie, certify the above Geologist for Sudbury Contact Mines Ltd.

February 18,

age\sc\182\4-3-Fe92

tp/be corr/etfi as Project

CHRIST I E, B. S

MAY l 2 1992

MINING LANDS BRANCH

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Ontario

Ministry ofNorthern Developmentend Mines

du'fit du Nord

et des mines

Statement of Costs for Assessment Creditfetat des coQts aux fins du credit devaluation

Mining Act/Lol sur les mines

Personal Information collected on this form Is obtained under the authority of the Mining Act. This information will be used to maintain a record and ongoing status of the mining claim(s). Questions about this collection should b* directed to the Provincial Manager, Minings Lands, Ministry of Northern Development and Mines, 4th Floor, 159 Cedar Street, Sudbury, Ontario P3E 6AS, telephone (705) 670-7264.

Les renseignements personnels contenus dans la presente formule sont recueillis en vertu de la Lot sur let mines et serviront a tenir a Jour un registre des concessions minlere*. Adresser toute question sur la cdlece de ces renseignements au chef provincial de* terrains mlnlers, minister* du Devetoppement du Nord et des Mines, 159, rue Cedar, 4* Mage. Sudbury (Ontario) P3E 6A5, telephone (705) 670-7264.

1. Direct Costs/CoOts directs

Type

Wages Salalres

Contractor's and Consultant's fee* Drafts de ('entrepreneur et de ('expert- conseli

Supplies Used Foumrtures utllleee*

Equipment Rental Location de materiel

Description

Labour Main-d'oeuvreField Supervision Supervision sur le terrain

TVP* Geophysical

Typ*

Typ*

Amount Montant

14,292.

Total Direct Costs Total des coOts directs

Totals Total global

)0

14, 292. (

14,292.

0

0

2. Indirect Costs/CoOts Indirect** ' Note: When claiming Rehabilitation work Indirect costs are not

allowable as assessment work. Pour le remboursement des travaux de rehabilitation, let coOts indirect* ne sont pas admissible* en tant que travaux devaluation.

Type

Transportation Transport

Pood andLodging Nourriture et MbergwnentMoMllzatlon and Demobilization Mobilisation et demobilisation

DescriptionTyp*

*

Amount Montant

Sub Total of Indirect Costa Total partial des coats Indirect*

Amount Allowable (not greater than 20* of Direct Costa) Montant admissible (n'sxeMant pa* 20 H d** coOt* directs)Total Value of As*e**ment CredK Valeur total* du credit (Total of Dtrtct and ANowaM* devaluation Indirect eo*t*l (Total *M eeflt* Anas

Total* Total global

0

0L4, 292.0

Note: The recorded holder will be required to verify expenditures claimed In this statement of costs within 30 days of a request for verification, tf verification is not made, the Minister may reject for assessment work all or part of the assessment work submitted.

Note: Le titulaire enregistrt sera tenu de verifier les depense* demand*** dans le present etat des coots dan* les 30 jours sulvant une demand* i cet effet. Si la verification n'est pas effectuee, le mlnlstre peut rejeter tout ou une partie des travaux d'evalualkm presente*.

F.,.nfl Discount.

1. Work filed within two years of completion is claimed at 10094) of the above Total Value of Assessment Credjt^y | g '|392

2. Work filed three, four or five years after completion is claimed at NWfc of the above Total Value calculations below:

Total Valu* of Assessment Credit Total Assessment Claimedx 0.50

Remises pour depot

1. Les travaux deposes dans les deux ans suivant tour achevement sont

2 . Les travaux deposes trols, quatre ou cinq ans apres leur achevement *ont rembourses a 50 "H) de la valeur totale du cr*dt d'evaiuatfon susmentionne. Voir les calculs d-dessous.

Valour total* du crMit d'evaluatlonx 0,50

Evaluation total* demand**

Certification Verifying Statement of Costs

l hereby certify:that the amounts shown are as accurate as possible and these costs were incurred while conducting assessment work on the lands shown on the accompanying Report of Work form.

that as Pro-iect Geologist(R*cord*d Hoktor, Agent, Position In Company)

to make this certification

Attestation de I'etat des coQts

J'atteste par la presente :que les montants Indiques sont le plus exact possible et que ces depenses ont ete engagees pour effectuer les travaux devaluation sur les terrains indiques dans la formule de rapport de travaH cHoint.

i am authorized Et qu'a tltre de(tttulair* *nr*gl*trt, r*pr*t*ntant, pt

a falre cette attestation.

up* dan*J0 suls autorise

0212 (04*1) Nota : Dans cette formuja, torsqu'H design* d** ptrsonnes, l* masculln est utHIM au sens iwutra.

Ministry ofNorthern Developmentand Mines

Ontario

Report of Work Conducted After Recording Claim

Mining Act0380 -

Personal Information collected on this form Is obtained under the authority of the Mining Act. This Information wffl be used tor correspondence. Questions about this coflectlon should be directed to the Provincial Manager, Mining Lands, Ministry of Northern Development and Mines, Fourth Floor, 160 Cedar Street. Sudbury, Ontario. P3E 6A5. telephone (705) 670-7264. ^ t - - - ,2 * \ ':~ -- *instructions: - Please type or print and submit In duplicate. ***

- Refer to the Mining Act and Regulations for requirements of filing assessment work or consult the Mining Recorder.

- A separate copy of this form must be completed for each Work Group. j- Technical reports and maps must accompany this form in duplicate. ; . ;- A sketch, showing the claims the work is assigned to, must accompany this form.

Recorded HoUer(s)Sudbury Contact Mines Ltd. ;

Address 401 Bay St., Ste. 2302, P.O. Box 102, Tor onto, Ont.MSH 2Y4Mining Division Township/Area

Larder Lake Division Rattray,

*3ormed Ffom: November 1, 1991

Mulligan

Client No.198617 i

TwtpnQOt No.(416) 947-1212

M or Q Plan No. G-3219, M-373

To: December. 20, 1991Work Performed (Check One Work Group Only)

Work Group

X Geotechnical Survey

Physical Work, Including Drilling

Rehabilitation

Other Authorized Work

Assays

Assignment from Reserve

Type

Linecutting, Magnetics, VLF-EM, HLEM, Gravity 6 UTEM ;

i

.RFOFIVPQ

MAY 1 2 1992

r?J ~1Utl Ajp J

Total Assessment Work Claimed on the Attached Statement of Coste l -" ' ^ "cK• •f . W*/

Not*: The Minister may reject for assessment work credit all or part of the assessment work submitted if the recorded holder cannot verify expenditures claimed In the statement of costs within 30 days of a request for verification,.

Persons and Survey Company Who Performed the Work (Give Name and Address of Author of Report) -r——iName

M.C. Wilson, Techterrex Inc.

F.L. Jagodits, Savaria Gecphysix

Ben Polzer, Lamontagne Geophysic

Teresa Myrfield, Lamontagne Geoj

Address . i199 Sheraton Court, Oakvllle, Ont. L6L 5N3 j |\,

s Inc., 353 Berkely St., Toronto, Ont. M5A 2X6 - ; ! j ? ,

s Ltd. ,115 Grant Tiranins Drive, Kingston, Ont. K7L 4V4 -

hysics Ltd., 115 Grant Timmins Drive, Kingston, Ont* K7L 4W(attach a schedule H necessary)

Certification of Beneficial Interest * See Note No. 1 on reverse side

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Sign

ature

Date

; -

(^

Ministry ofNorthern DevelopmentMd Mines

^pfrnaMin Dev et des mines

m du Nord

Statement of Costs for Assessment Creditttat des coQts aux fins du credit d'evaluation

Mining Act/Lol sur les mines

9280

Personal Information collected on this form Is obtained under the authority of the Mining Act. This Information will be used to maintain a record and ongoing status of the mining claim(s). Questions about this collection should be directed to the Provincial Manager, Minings Lands, Ministry of Northern Development and Mines, 4th Floor, 159 Cedar Street, Sudbury, Ontario P3E 6A5, telephone (705) 670-7264.

Les renseignements personnels contenus dans la presents formule sent recuef Ills en vertu de la Lo) sur lee mines et eervlront i tenir e jour un registre des concessions mlnleret. Adresser toute question sur la cotlece de ces renseignements au chef provincial des terrains mlniers, ministers du Devetoppement du Nord et des Mines. 159, rue Cedar, 4* Mage, Sudbury (Ontario) P3E 6A5, telephone (70S) 670-7264.

1. Direct Costs/CoOts directs

Type

Wegee Salalree

Contractor's end Consultant's Fees Drottsde ('entrepreneur et de ('expert* coneed

Supplies Used Foumttures utlfleees

Equipment Rental Location de materiel

Description

Labour Main-d'oeuvreReid Supervision Supervision sur le terrain

Type Geophysicists

Type

Type

Amount Montant

1059.25

47,567.1

Total Direct Cost* Total des coOts directs

Totals Total global

1059.25

0

47,567.5

48,626."

2. Indirect Costs/Codts Indirect** * Note: When claiming Rehabilitation work Indirect costs are not

allowable as assessment work. Pour le remboursement des travaux de rehabilitation, les coOts indirects ne sont pas admlsslbles en (ant que travaux d'evaluation.

Type

Transportation Transport

i

RECFood and UALodging m M Nourrtture et

UobllUi^H kltii 1ST.— IpfljSBi.?^ iMobilisation et demobilisation

DescriptionTyp*

Gas

"ruck 6 Van Renta

;FIVT.D —" Wr^T •"

r 1 2 1992

.AND6 DfVv ••-'' '

Afltount Montant

41.00

1 1,260.

3,797.90

4,000.00

Sub Total of Indirect Costs Total partial de* coOts Indirect*

Amount Allowable (not greater than 20H of Direct Costs) Montant admissible (n'exeedant pas 20 * des coOts directs)Total Value of Assessment Credit Valeur totale du credH (Total of Direct and Allowable d'evahiaUen Indlnet eoaU) rTaW d* eeOU dtreeU

Totals Total global

)0

1,301. 0(

3,797. 9(

4, 000. Of

9,098. 9(

9,098. 9(

57, 725. (

Note: The recorded holder will be required to verify expenditures claimed in this statement of costs within 30 days of a request for verification. If verification is not made, the Minister may reject for assessment work all or part of the assessment work submitted.

Note : Le titulaire enregistre sera tenu de verifier lesdepensesdemandees dans le present etat des coats dans lee 30 jours suivant une demand* a cet effet. Si la verification n'est pas effectuee, le mlnletre peuf rejeter tout ou une partie des travaux d'evaluation present**.

Filing Discounts

1. Work filed within two years of completion is claimed at 1004fe of the above Total Value of Assessment Credit.

2. Work filed three, four or five years after completion is claimed at 50*fc of the above Total Value of Assessment Credit. See calculations below:

: Total Vslue of Assessment Credit Total Assessment Claimedx 0.50 -

Remises pour depot

1. Les travaux deposes dans les deux arts suivant tour achevement sont rembourses a 100 to de la valeur totale susmentionnee du credit d'evaluation.

2. Les travaux deposes trois, quatre ou dnq ana apres leur achevement sont rembourses a 50 to de la valeur totale du credit d'evaluation susmentionne. Voir les calculs ci-dessoos.

Valeur totale du credit d'evaluation Evaluation totale demand**x 0,50 -

Certification Verifying Statement of Costs

l hereby certify:that the amounts shown are as accurate as possible and these costs were incurred while conducting assessment work on the lands shown on the accompanying Report of Work form.

that as Project Geologist(Recorded Holder, Agent. Position in Company)

to make this certification

Attestation de I'etat des coOts

j'atteste par la presente :que les montants indiques sont le plus exact possible et que ces depenses ont M engagees pour effectuer les travaux d'evaluation sur les terrains indiques dans la formule de rapport de travail cHoint.

l am authorized Et qu'a tltre de je suls autoris6(tMulalr* *nregi*tr*. repr***ntam. pott* occup* dans la oompagnj*)

a faire cette attestation./

Signer*TT/ Feb. 18/92

3818(04/91)

l ( (f(iw ^ r XtV. '. '——:—————Not* : Dans can* formu*. torsqu'il design* d*( personnes, te^nesculin ett utilise au sens neutr*

Ontario

Ministry of Ministers duNorthern Development D6veloppement du Nordand Mines et des Mines

Mining Lands Branch Geoscience Approvals Section 159 Cedar Street, 4th Floor Sudbury, Ontario P3E 6A5

Telephone: Fax:

(705) 670-7264 (705) 670-7262

May 19, 1992 Our File: 2. 14559Transaction #W9280. 0057

Mining Recorder W9280. 0058 4 Government Road East Kirkland Lake, Ontario P2N 1A2

Dear Sir/Madam:

SUBJECT; APPROVAL OF ASSESSMENT WORK SUBMITTED ON MINING CLAIMSLI 1 6788 1 ET AL. IN SKEAD, RATTRAY AND MULLIGAN TOWNSHIPS

The assessment work credits for the Geophysical surveys, Section 14 of the Mining Act Regulations submitted on the above reports of work have been approved as originally filed as of May 13, 1992.

Please indicate this approval on your records.

Yours sincerely,

Ron C. GashinskiSenior Manager, Mining Lands BranchMines and Minerals Division

Enclosures:

cc: Resident GeologistKirkland Lake, Ontario

Assessment Files Office Toronto, Ontario .

ftj H win i iiwifKi ^^/"^.

1142 IW*U5 11)68144 l w l———. -^- i . * j^j^ ——,- -1- ^ l1.4* ;tj i T; n

.0.04*5 10*0*2 - ' 10*01*1 .1090*0

"I 11

(jf'0*425* IO*(2I7 | IO**2S* , ,0*(25* |:--rH-H--.

16864

""A

Ip ^ -- ^

(l! ' vf ||i090l9J h090ldl ,( I0901S9 ||090(70jf"f~t~ r-*

li 11l 11682591 1166260 H6826I ^1168262 1)168263, — — J- l- -l- — ^4— - T - -

111682691.1168266 l 116886/1)68868 11168269*-- i""i"Y i" T""6887)41)68278! "^a^siiiee^l''^ZI*

J\ l ^ l l—o.

' ' ' b ' l1168277 1116(278 i II682T9 11168880,1168281fV-tTht"1090179 *090n* |t'090ljX*jK),ol7t 1)68879iv^ --——Jbt-J-—1.-4- - M- l

0902.0 |io*otw fi 116(888 1(168^89 l "68850 l H6883Iir"f^*t"""'( "[""lB——————-l——L———— l i .1168244 l l)68|4Sl H 68246 | 68247

i^ ":. .x--— .i-

1168250

IOS021J" . I090242 .(OJ024I . ,OS02,0r—tfr-^fr'--!-

i J i

l0902jK(^09024t

iiosM*! jroaoz*. —U ~u

l l1090305^lJ090304 . IO9030S Ii090302-

*030* 4 !090307 1309030* | IO90309

"/•'VtSg-'Jt^''*JWIr~1i~"r—i

" """

;-J-?4————-M^-i" LS(S4(

*,~,,.,. r" t in r " ,oTi ~

-~:.r6795 ' ;:

DISPOSITION OF CROWN LANDS

-•L P-OCUMEJYT

PATENT. SURFACE 4 MINING RIGHTS

SURFACE P'GHTS ONLY

MNING VGHTS ONLY

LC'.CE. vJRFACt: i MINING RIGHTS

UIRFACE RIGHTS ONLY

VENING RIGHTS 0\LY LICENCE OF OCCUPATION CROWN L/NO SALEORDER-IN-COUNCIL

SYf,

CANCELLCD

SAND 4 GRAVEL

DOCUMENT No.

SCALE : 1 INCH -1 OH, -MS

ACRES

40

HECTA.^S

1b

TOWNSHIP

SK E A DDISTRIC""

TIMISKAMINGMINING D l V l S'l O N

LARDEH LAKE

Ministry of Natii~^ A_. ^.. ^^ . . ^^,_ ^ ^^

SCHEDULE A

PERSONS AND SURVEY COMPANY WHO PERFORMED THE WORK Coni'd.

Albert Vickers, JVX Ltd., 60 West Wilmot Street, Unit 22Richmond Hill, Ontario L4B 1M6

Blaine Webster, JVX Ltd., As above.

^f

Rattray

t -J*± 47

-*..- ——— ' . ___ 1090231 0*80^ IMW4 J2™1- __ -: ' . ^ ~ ~- T ~~ ~~ IT*~~ K ~~A L l*.

lSi , wi — —— — ' AV — T- — * — T ——P7 T1 r7

imosoc i *o*o3ot i- —^ ITS*— —

WWW,

l_J__J__

Pen s-e '.-Twp;

-* 1 v'": " : ^- -'

THE INFORMATION THAT APPEARS ON THIS MAP HAS BEEN COMPILED FROM VARIOUS SOURCES, AND ACCURACY IS NOT GUARANTEED. THOSE WISHING TO STAKE MIN ING CLAIMS SHOULD CON SULT WITH THE MININGRECORDER, MINISTRY OF NORTHERN, DEVELOP MENT ANP MINES. FOR AD DITIONAL INFORMATJON ON THE STATUS OF THE LANDS SHOWN HEREON.

l

TtfE TOWNSHIP/or

DISTRICT- OF s TIMISKAMINGLARDER'LAKE * A

MINING DIVISION SCALE :i-INCH*.40 CHAINS

LEGEND

PATENTED LAND -CROWN LAND SALE- LEASES J LOCATED LA^D f LICENSE O F OCCUPATION

IMPROVED ROADSRAILWAYSPOWER L INESKING'S HIGHWAYMINESMARSH OR MUSKEG

CANCELLED PATENTEE S.R.O.

NOTES ' ;400' Surface rights.reservation around dl|nvcrft.

PLAN NO.- M-373

MINISTRY OF NATURAL RESOURCESSURVEYS AND. wvAPflNG.

-u ' ^ r

-•-•?i

iSBRWwl t

~S "L

"r-^ -'AC*t'.'''"~ r . .. .

f '

_..j,,, ,i

REFERENCES

AREAS WITHDRAWN FROM D ISPOSITION

M.R.O.-MINING RIGHTS ONLY

S.R.O. -SURFACE RIGHTS ONLY

M.+ S. - MINING AND SURFACE R IGHTS

Deicription Order N o. Date Disposition File

and Mining Rights Withdrawn from Stoking, section 36/80 order Nc.w

Surface and Minim Staking, section 3(

i Rights Withdrawn from ./80 order No.*

Surface and Mining Rights Withdrawn from Stokinc. section 36/80 order No.Jsl-?;44r

OFBY OMDCM HO

© Surface and Mining Rights Withdrawn from Staking, section 36/60 order No.*-'*.-fl*

QRDFH NCJfcyH Rihts withd

^PART ^ REOPENED ev Surface and Mining ig Staking, section 36/80 order

O/TSWT ofcitt w/72/87

. rawn f rom

0-L32-90 NR OPENS PART OF W8/B6 DECEMBER 14,1990

THE INFORMATION THAT APPEARS ON THIS MAP HAS BEEN COMPILED FROM VARIOUS SOURCES, AND ACCURACY IS NOT GUARANTEED, THOSE WISHING TO STAKE MIN ING CLAIMS SHOULD CON SULT WITH THE MINING RECORDER, MINISTRY OF NORTHERN DEVELOP MENT AND MINES, FOR AD DITIONAL INFORMATION ON THE STATUS OF THE LANDS SHOWN HEREON.

NOTICE OF FORESTRY ACTIVITYTHIS TOWNSHT ; AREA FALLS WITHIN THE ___

TIMISKAMING MANAGEMENTAND llMYlK~3UKjECT ToToRESfKY OPERATIONS. THE MNR UNIT FORESTER FOR THIS AREA CAN K CONTACTED AT: P.O. BOX 129

SWASTIKA, ONT.POK.ITO705-642-3222

CL ^

Q< UJ^:CO

MCFADDEN TWP.

--TT-/T-

1168125 Lll48l26 11166127T - -

,08.4*3 .^ ."""""

l|7*l2K77 j 1168278^16829~ ir l i! -',.. __ ^- —— —

28 M

1168240 11109241 .1168242fi J j ___J ______ — ______

IM 2 M5M

MULLIGAN TWP.

LEGENDHIGHWAY AND ROUTE No.

OTHER ROADS

TRAILS

SURVEYED LINES:TOWNSHIPS, BASE LINES. ETC.LOTS, MINING CLAIMS. PARCELS, ETC

UNSURVEYED LINES:LOT LINESPARCEL BOUNDARYMINING CLAIMS ETC.

RAILWAY AND RIGHT OF WAY

UTILITY LINES

NON-PERENNIAL STREAM

FLOODING OR FLOODING RIGHTS

SUBDIVISION OR COMPOSITE PLAN

RESERVATIONS

ORIGINAL SHORELINE

MARSH OR MUSKEG

MINES

TRAVERSE MONUMENT

DISPOSITION OF CROWN LANDS

TYPE OF DOCUMENT SYMBOL

aQ

PATENT, SURFACE ft MINING RIGHTS......

. SURFACE RIGHTS ONLY...........

" .MINING RIGHTSONLY___......LEASE, SURFACE b M INING RtGHTS..................... H

" .SURFACE RIGHTSONLY.......................... H

" . MINING RIGHTS ONLY..............,............. y

LICENCE OF OCCUPATION ....-^,....................... W

ORDER-IN-COUNCIL ———,.-^................^^^,. OC

RESERVATION ,................,..,^...^...

CANCELLED __......

SAND 4 GRAVEL ._..........^,........................ tj)

NOTE: MINING RIGHTS IN PARCELS PATENTED PRIOR TO MArV* 1913, VESTED IN ORIGINAL PATENTEE BY THE PUBLIC LANDS ACT. R.S.O 1970, CHAP 38O, SEC. 63, SUBSEC 1.

MINIMu L K

SCALE: 1 INCH = 40 CHAINS

FEETO 10OO 2000 4OOO 6000 BOOO

O 2OO METRES

1000:i KM)

20OO(2 KM)

10

EIVIEtf1215

TOWNSHIP

RATTRAM.N.R. ADMINISTRATIVE

KIRKLAND LAKEMINING DIVISION

LARDER LAKELAND TITLES/ R EGISTRY DIVISION

TIMISKAMINGMinistryof LandNatural ManagementResources Branch

Ontario

Ditt FEBRUARY, 1985 Nmnhir

G-3219

O)LOOl

lCD

E!

fOL/D01

iCD

31M13NE0001 2.14559 MULLIGAN 210

NOTES

W surface rights reservation along the shoies of a il lakes a nd rivers,

'66 tPP:.u.ATIQiV

Surface and Mining Rights Withdrawn from

Staking, section 56/80 order No. #-


Staking, section 36/80 order


Staking, section 36/80 order No. .^*PART OF B? SfcOPENED BY ORDER 0-19/fl'- '•'"' 'O'86 • J ART 6^ Rt OPENED B Y O RDcR NL 0-L10/B9 Nh

PART or ÎPIC^LNF^ B" '-^t- .-.--sc'.E 1* ASurface and Mining Rights Withdrawn from

Staking, section ^6/80 order No. *-a-PART OF- H4 REOPENED B Y ORDER 0 -I9/88L MOV 30/Sft •'ART OF ^ REOPENED BY ORDER 0-20'H^L NQV 30/88

urface and Mining Rights Withdrawn from

;inq, section 36/80 order No.Po-T of R5 r*- 0 p*n*d 034/ee. 033/86. OIE/d?PART OF RS REOPENED BY* ?7 98 MR MAR 30J988,

f

ûrfoce and Mining Rights Withdrawn from

StaKing, section 36/80 order Ne. *-7z-e7ÂRT OF R6 REOPENED BV 0-17'SSL NOV 30/96

THF INFORMATION THAT APPEARS ON THIS MAP HAS BEFN COMPIl LI- FROM VARIOUS SOURCES. AND ACCURACY IS NOT GUARANTEED THOSf WISHING TO STAKE MIN ING CLAIMS SHOULH CON SUIT WITH THE MINING RECORDER. MINISTRY OF NORTHERN DEVELOP MFNT AND MINES. FOR AD DITIONAL INFORMATION ON THE STATUS OF THE LANDS SHOWN HEREON

- — "ri— I1~T- inr ' ir li- — m~ I T

LEGEND

H - - -.'' Y AND ROUTE No

OlMth F- .-.OS

TRAILS

HEARST

TOWNSH'. D E B^ST LINES ETC.LO''S ViMNG CLAIMS PARCELS, ETC, '——

H532819 C &3Z8ZO® i .

44ZOM i 4420Mb32254 '.33225S l .198188

L 77254Ut 77234^ l L

HT0764 1110735

MAY l 2 1992

MINING LANDS BRANCiDISPOSITION OF CROWN LANDS

TYF-L OF L'OC

PATENT. SURFACE 6 MiNl^.G RIGHTS

S ONLY

^.GHTS ONLY

L,r-;fAcr i WINING RIGHTSRIGHTS ONLY

v.NSNG RIGHTSLICENCE ur OCCUPATION

CROWN L/ ','D SALE

-P; COUNCIL

RESERVATION

CANCELLED

SAND 4 GRAVEL

302271 l 302272

'i \ l i l .

'^-r'^ss^f-- . --'.^- t; i 5.t/ | 0 -17I80 ( 1047181

67 A n f ho fi y

SCALE : l INCH ' ' CH,' 'NS

'OPWOO 'WfttWft J j

ACRES HECTA '^

TOWNSHIP

TIMISKAMINGMINING D l V l S'l O N

LARDER LAKE

Ministry of Natural j Resources

Ontario Surveys and Mapping Bra., nDateBAYLY TP. MAY 7

LARDER LAKE

CIRCULATED:MARCH 2 , 988

31M13NEOaai 2.14559 MULLIGAN 220

COo;OD

CD CDr--

CDCD CO

CD CD LO

CD CD

CD CDro

CD CD

CD CD CD

CD CD OJ

CD CDro

CD CD

CD CD LO

CD CDto

CD CDr—

CD CDCD CDOO CTS

CD CD

CDOsl

CDCD CD LO

L O

L 200 S —

L 400 S

L 600 S —

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

L 3400 S

H——l * i——l——l t \——l——l——l——I- H——l l l l l l H—l—l—l—l—l—]—l—l—l—l—l—l—l—l—l—l—l—l—l—l—l—j—l—i—I-

H———l———l——————H H———l———H

t l l l l

t l l l l l l

CDCD CD CO

CD LO

CD CD

CD CD rO

CD CD

CD CD

CD CDro

CD CD

CD CD LO

CD CDr—

CD CD OO

CD CD CD

CD CD CD

CD CD

CD CD

CD CD CD

LO

CO^cCD

— L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S

L 2400 S

—L 2600 S

L 2800 S

L 3000 S

L 3200 S

—L 3400 S

M

Declination: 12' W

LEGEND

Scale: 1:5000

Profile Scale: 20 %/cm.

Profile Base Level: O 'Z

In-Phase Profiles:

Quadrature Profiles:

SURVEY SPECIFICATIONS

Instruments: Apex Parametrics Max Win II PiusApex Parametrics MMC Digital Recorder

Frequency: 3555 Hz.

Coil Separation: 200 m.

NOTE: fn-phase component slope corrected

100Scale 1:5000

O 100 200 300

(metres)

2


Skeleton Creek GridHORIZONTAL LOOP EM SURVEY 3555 Hz. Postings ft ProfilesRattray and MulliganTownships


NTS: 51 M/13 Map No. WLP-EM-1Sorvey 4 Presentation:

lechlerrex Inc. OflMIe, Ontario December, 1991

31M13NE0001 2.14559 MULLIGAN 230

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S —

L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

L 3400 S

CO^cDQ

CD CD CO

CD CDLO

CD CD

CD CD

CD CDCD

CDCD ro

CD CD

CD CD LO

CDCD

CD CD

CDCDoo

CDCDen

CD CD CD

CD CD

CD CD OJ

CD CD

CD CD

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Declination: 12* W

LEGEND

Scale: 1:5000


Profile Base Level: O 3,

In-Phase Profiles:



Instruments: Apex Parametrics Max Win II PlusApex Parametrics MMC Digital Recorder

Frequency: 3555 Hz.


NOTE: In-phase component slope corrected

100Scale 1:5000

O 100 200 300

(metres)




NTS: 31 M/13 Map No. WLP-EM-4Survey k P resentation:

OoMIe, Ontario December. 1991

31M13NE0CO! 2 .14559 MULLIGAN 240

LU

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Declination: 12' W

LEGEND

Scale: 1:5000


Profile Base Level: O l

In-Phase Profiles:


INTERPRETATION

Conductor axis with dip: — —~is- —

200m coil separation m

250m coil separation A

Uncertain ?

To accompany report by: F. L. Jagodits, PEng.,Consulting Geophysicist


Instruments: Apex Parametrics Max Min II PlusApex Parametrics MMC Digital Recorder

Frequency: 1777 Hz.



100Scale 1:5000

O 100 200 300

(metres)

SUDBURY CONTACT MINES LTD.Wendigo Lake Properties



NTS: 31 Map No. WLP- EM-2Survey 4 Presentation:

lecnlera Inc. OoMIe, Ontario December, 1991

MULLIGAN 250

L O

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—L 3000 S

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Declination: 12' W

LEGEND

Scale: 1:5000


Profile Base Level: O JE

In-Phase Profiles:




Frequency: 1777 Hz.



100Scale 1:5000

O 100 200 300

(metres)




NTS; 31 M/13 Mop No. WLP-EM-5Survey ft Presentation:

ledilerrex Inc. OflMIe, Ontario [kember, 1991

L O

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lDeclination: 12'W

LEGEND

Scale: 1:5000


Profile Base Level: O K

In-Phase Profiles:



Instruments: Apex Parametrics Max Min II PiusApex Parametrics MMC Digital Recorder

Frequency: 444 Hz.



100Scale 1:5000

O 100 200 300

(metres)


Skeleton Creek GridHORIZONTAL LOOP EM SURVEY 444 Hz. Postings ft Profiles

Rattray and MulliganTownshipsLarder Lake Mining Division

OntarioNTS: 31 M/13 Mop No. Wf-EM-3

Survey i Preseototion: tectite Inc. OoMIe, Ontario kember, 1991

3IM13NE0001 2.14559 MULLIGAN

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aa

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Declination: 12' W

LEGEND

Scale: 1:5000


Profile Base Level: O Z.

In-Phase Profiles:



Instruments: Apex Parametrics Max Win II PlusApex Parametrics MMC Digital Recorder

Frequency: 444 Hz.



100

Scale 1:5000O 100 200 300

(metres)

2 /' - ",: (-;c O " --s


Skeleton Creek GridHORIZONTAL LOOP EM SURVEY 444 Hz. Postings ft Profiles

Rattray and MulliganTownshipsLarder Lake Mining Division

OntarioNTS: 31 M/13 Map No. WLP-EM-6

Sumy 4 Presentation: Mm Inc.

December, 199131M13NE0081 2.14559 MULLIGAN 230

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Declination: 12* W

LEGEND

Scale: 1:5000

Profile Scale: 20 nT/cm.

Profile Base Level: 58,175 nT


Instruments: EDA Instruments Omni IV Base Station Magnetometer Omni Plus Field Magnetometer

Base Station Location: 1155 S, 515 E

Base Station Value: 58,150 nT

100Scale 1:5000

O 100 200 300

(metres)

Skeleton Creek GridGROUND MAGNETOMETER SURVEY

Total Magnetic Field Postings ft ProfilesRattray and Mulligan Townships


NTS: 31 M/13, Map No. WLP-2Survey 4 Presentation:

lechTerrex Inc. Oakvile, Ontario Novemk, 199!

31M13NE&001 2.14559 MULLIGAN S90

L O

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Declination: 12* W

LEGEND

Scale: 1:5000

Contour Interval: 5 nT

25 nT

100 nT

500 nT


Instruments: EDA Instruments Omni IV Base Station Magnetometer Omni Plus Reid Magnetometer

Base Station Location: 1155 S, 515 E


100Scale 1:5000

O 100 200 300

(metres)


Skeleton Creek GridGROUND MAGNETOMETER SURVEY

Total Magnetic Field ContoursRattray and Mulligan Townships


NTS: 31 M/13. Map No. WLP-3Survey 4 Presentation:

Techlerrex Inc. Oak*, Ontario November, 1991

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Instruments: EDA Instruments Omni Plus Magnetometer/VLF unit

Transmitter Station: Cutler, Maine NAA

Transmitter Frequency: 24.0 kHz.

Initialization Direction: E-W Lines; Facing East

100Scale 1:5000

O 100 200 300

(metres)


Skeleton Creek GridGROUND VLF-EM SURVEY

Fraser niter Contours of NAA FrequencyRattray and Mulligan Townships


NTS: 31 M/13. yop No. WLP-5Survey 4 Presentation:

TechTerrex Inc. Day e, Onto November, 1991

3IM13NE000I 2.14559 MULLIGAN 320

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Instrument: EDA Instruments Omni Plus Mag/VLF unit

Transmitter Station: Annapolis, Maryland NSS

Transmitter Frequency: 21.4- kHz.


100Scale 1:5000

O 100 200 300

(metres)



Postings A Profiles of NSS FrequencyRattray and Mulligan Townships


NTS: 31 M/13. Map No. WLP-6Survey 4 Presentation:

TechTerrex he. Oakville, Ontario taller, 1991

31M13NE0001 2.14559 MULLIGAN 330

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lDeclination: 12* W

LEGEND

Scale: 1:5000

Contour Interval:


Instruments; EDA Instruments Omni Plus Magnetometer/VLF unit


Transmitter Frequency; 21.4 kHz.


100Scale 1:5000

O 100 200 300

(metres)



Fraser Filter Contours of NSS FrequencyRattray and Mulligan Townships


NTS: 31 y/13, Map No. WLP-7Survey 4 Presentation:

lectilerrex Inc. dobie, Ontario November, 1991

31M13NE000I 2.14559 MULLIGAN 340

L O

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LEGEND

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100

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Skeleton Creek Grid TOPOGRAPHIC PLAN


OntarioNTS: 31 M/13. Map NO.WLP-I

Survey 4 Presentation: lechlera Inc. Oak*, Ontario November, lil

.11553 MULLIGAN 3B0

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Declination: 12' W

INTERPRETATION LEGEND

Approximate limitof magnetic domain with identification...

Approximate outline of diabase dyke with identification and dip.. di

Approx. axis of minor dyke d4

Approximate outline of magnetic body with identification.............

VLF-EM conductor axis;poor,...

mediocre,... good ...

with identification

Interpreted faultand l o r shear zone; . . ... ,..

M s magnetic support, V - VLF-EM support

Approximate location of Questem (1990) anomalies,,

s s surficial, — L- ^ with dip

vi

*vv* -w

To accompany report byF. L. Jagodits, P.Eng.,


LEGEND

Stream

Road .

Located Claim Post

Assumed Claim Post —D-

100

Sea e 1:5000O 100 200 300

(metres)


Skeleton Creek GridGROUND GEOPHYSICAL SURVEYS

INTERPRETATION MAP


Ontariof "7-1 L J l 4 iS: 3 Mm .WLP-8

Survey ft Presentation: lechlerrex Inc. Oatoile.Ontorio November, 1991

MULL i CAN

3B0

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

L 3400 S

CO

CO

CD CDr-

CZ3 CD CO

CDLO

CD CD

CD CDro

CD CDOJ

CDCD

CD CD

CD CDOJ

CD CD LO

CD CD CO

CD CD

CDCDoo

CD CD CD

CD CD CD

CD CD

CD CD Oxl

CD CDro

CD CD

CD CDLO

CDCD CD CO

CD CDLO

CD CD

CD CDro

CD CD CD

CD CDOJ

oCO ro

CD CD

LOCD CD CO

CD CD OO

CD CD

CD CD CD

CD CDog

CD CDro

CDCD CD LO

CO ^CCD

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

2000 S

L 2200 S

2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

L 3400 S

i

N

Declination: 12' W

LEGEND

Contact

Discrete currentchannelingresponse

Possible shallowly dipping discrete body.

MORE RESISTIVE

MORE CONDUCTIVE

Integer associated with the conductor axis or contact denotes the latest UTEM channel of the anomaly.

100Scale 1:5000

O 100 200 300

(metres)

LAMONTAGNE GEOPHYSICS LTD IGEOPHYSIQUE ITEE


Skeleton Creek Grid UTEM INTERPRETATION


OntarioNTS: 31 M/13. Map No.

Grid Presentation: MTerrex Inc. Oak*, Ontario taber, 1991

370

UJ

o a

UJ

a a OD

UJ

o CD oo

1000 S 1000 S

1600 S

UJ

oa a

UJ

o aCM

UJ

CD CD

1600 S

—Elevation

2400 S

—— —— . ——otoiDDQQQQa^Atai — , — -. H — , — ( — — A^-r- r- Q w t" o tt t* \ui

—— ~~ ——————————————————————— " " — ' —— —— r^ntB t3it)Vif^*D^a?a3OQeo ^ —— ~~~ co^tftcjiDMtoui*-t toW(Dt^-. . . , . . , . . .... . . . . . . : ^ . .Q-.-. . . . . . • Q-*nuitBt~-r**~Vi*--' ' - - - . o — -" m * r- 1/1 (fi (M o o ^ n

— ( —— | —— | —— | —— | —— | —— l —— l —— ( —— l —— 1 —— l —— l —— l —— 1 —— l —— 1 —— 1 —— 1 —— t —— ( —— t —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— t —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— 1 —— l —— t —— 1 —— 1 —— 1 —— 1 —— 1 —— l —— 1 —— l —— t —— t —— 1 —— 1 —— ( —— i —— 1 ——

ztUj^-cja-tLraoa) Nmoicico-toj^n

-irf-t-jrfrfrfC'IN PJCMtWNMNMWC

-•cjv*ONtgco*cj -•aDLnnoiO'-c **-*wmuiuiaiio Httoiainintnur•^MC-IOJINNtMfcJN NMWtMW(N(VMC

24QO S

OoCO

LO

Gravity

31M13NE0eei 2 .14559 MULLIGAN 380

SUDBURY CONTACT MINES LTD.SKELETON CREEK GRID7FENDIGO LAKE PROPERTIES

BOUGUER CORRECTED GRAVITY PROFILESGRAVITY PROFILES : l cm ^ 0.20 mgals

GRAVITY BASE VALUE : 4920 mgals ELEVATION : l cm ^ 10 m

SCALE 1:5000

SURVEY BYJVX LTD.

DECEMBER 1991SCINTREX CG--3

GRAVIMETER PUTE l

LU UJ

OoCO

1000 S

UJ

o o o

LU

OCM

UJ

o o

10DQ S

1600 S H——h- H——H H——t- H——h H——t- H——h H——h H——h H——l——l——t- H——h 1600 S(D (D K) ED M O) "i 1/1 Ul IP IE ID (D m m w ^ -H -" 03 (O ui to in

N (V CM M

-Gravity

2400 S

Total Field Magnetics

400

a aCD

a a

oo

UJ

UJ COccCD

UJ

a a CM

UJ

o a

LU

a a

UJ

a aCO

UJ

a a a

LUo oCM

UJ

D O

No1e : Regional gradient removed f rom gravity,

SUDBURY CONTACT MINES LTDSKELETON CREEK GRIDWENDIGO 1AKE PROPERTIES

GRAVITY AND MAGNETICS PROFUESGRAVITY PROFILES : l cm - 0.20 mgals

GRAVITY BASE VALUE : 4920 mgalsMAGNETIC PROFILE : l cm ^ 40 nT

SCALE 1:5000

SURVEY BYJVX LTD.

DECEMBER 1991

SCINTREX CG-3 GRAVIMETER PLATE 2

31M13NE0001 2.14559 MULLIGAN 330

CD CD

CD CD

CD CD

CD CD

CD CD

CD CD04

CD O

CD CD

LU

CDCD LO

L 1200 N

L 1000 N ci ei jr i i l l i l lr -i..i; flO ro (D l/* r- r-; H"" Q o -"7T- *jL *r *^ ~f~ T "t "i* ?-~'^' "i*1

to o o

L 800 N

L 600 N•3-

L 400 N 1 ! 1 1 1 1 1 1 1 1 1 0l———l———l———l———l———Ht H———1^ 't '———l———I-

CV*V *P p —-. eq - ; (O ^ iq-

L 200 N

o o o T o CP o o o o^*^—t"-f--i"- i -r*|—^^ T- "i 1"!

kS-E^? ? T ^--4^7— L 1200 N

c^•-'-l(e'-cse)-*( — Bi ^-^ Ci 0 O 1 Ci O 1 1 O 1 E —

\———H L 1000 NT i f t t t T —— 1 ——in in ici us in to

L 800 N

pi l l lc3 to

i esin

to rt -* to in

B — iL 600 N

l i 1 1 l l l

T" 1 1 1

^•- Oi a) en fi ""dT o qj c* in f^^T111"*- "f1 "?^*7 T V 1 l

L 400 N

—L 200 N

CDCDLO

CDenCD

CDCD CD

CD CD

CD CD

CD CD

CD CD

U-J

CD CDLO

31M13SJE000, 2.14559 MULLIGAN

400

N

Declination: 12* W

LEGEND

Scale: 1:5000


Profile Base Level: O X

In-Phase Profiles: —

Quadrature Profiles: - - - - -


Instruments: Apex Parametrics Uax Win II PlusApex Parametrics MMC Digital Recorder

Frequency: 444 Hz.

Coil Separation: 200 m,


100Scale 1:5000

0 100 200 300

(metres)C)


lcefish Lake GridHORIZONTAL LOOP EM SURVEY 444 Hz. Postings A Profiles

Rattray TownshipLarder Lake Mining Division

OntarioNTS: 31 M/13 Map No. IP-27

Survey i Presentation: lechTerrex Inc. Oak*, Ontario December, 1991

CD CD

0 CD

CD CD

CD CD

CD CD

UJ

CD CD

LU

CD CD

CD CD

CD CD

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N —

L 200 N

L 1200 N

L 1000 N

L 800 N

L 600 N

L

L 200 N

CD CD

CD CD

CD CD

CD CD

CD CD

CD CDLO

iN

Declination: 12' W

LEGEND

Scale: 1:5000


Profile Base Level: O Z


Quadrature Profiles: - - - - - - -


Instruments: Apex Parametrics Max Uin II PlusApex Parametrics MMC Digital Recorder

Frequency: 1777 Hz.



100Scale 1:5000

O 100 200 300


lcefish Lake GridHORIZONTAL LOOP EM SURVEY 1777 Hz. Postings ft Profiles


OntarioNTS: 31 M/13 Map No. WLP-28

Survey 4 Presentation: Merrex Inc. OaHe, Ontario December, 1991

31M13NE3001 2.14559 MULL l GAM 410

CDCD

CDCD

CDCD CXJ

oCD

CD CDOJ

CD CD

CD CD

CD CD

L 1200 N —

L 1000 N —

L 800 N

L 600 N

L 400 N —

L 200 N

L N

L 1000 N

L N

L

L 200 N

CD CD LO

CD CD "st-

CD CD

CD CD

CD CD

CD CD

CD CD

CD CD ro

CD CD LO

N

Declination: 12* W

LEGEND

Scale: 1:5000


Profile Base Level: O l

In-Ptiase Profiles: —

Quadrature Profiles: -


Instruments: Apex Parametrics Max Min II PlusApex Parametrics MUG Digital Recorder

Frequency: 3555 Hz.



00Scale 1:5000

O 100 200 300

(metres)


lcefish Lake GridHORIZONTAL LOOP EM SURVEY 3555 Hz. Postings ft Profiles



Suniey 4 Presentation: Techferrex k Oakv9le, Ontario December, 1991

31M13NE*0ai 2 .14559 MULLIGAN 420

CO*zm

CD O)

O CO

CO CO CsJ

CO CO

COCO CXI

CO CO

coCOLO

L 1200 N

L 1000 N

L 800 N

L 600 N —

L 400 N

L 200 N

S un In K ffi st B S K 71K

OxtfîdSffiîOOrf

58127.8 58154.1 58152.8 58191.1 58300.1 58338. 584

••58401.1

591JP.OiO

58177.1 58093.4 58096.1 58089.9 58054.7 58072.3 58097.7

4-58124.4 58059.2 58045.1 58065.5

oooirâocc*i'i*Di-încD'-c-j to o c* 01 --1*1 in (

58056.4 58049.2 58062.2 58065.2 58067.2 58050.7 58077.9

H-58049.6 58054.4 58055.7 58054.1

i 88054.7' i i i i i

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

CD o04 ro

coLO

LU CO

GO

N

IDeclination: 12* W

LEGEND

Scale: 1:5000

Profile Scale: 100 nT/cm.

Profile Base Level: 58,000 nT


Instruments: EDA Instruments Omni IV Base Station Magnetometer Omni Plus Reid Magnetometer

Base Station Location: 470-59'-00" Latitude790-31 l-00" Longitude


Base Station Sample Interval: 15 sec.

100 'Scale 1:5000

O 100 200 300

(metres)

SUDBURY CONTACT MINES LTD, Wendigo Lake Properties

lcefish Lake GridGROUND MAGNETOMETER SURVEY

Total Magnetic Field Postings k ProfilesRattray Township


NTS: 31 M/13 MOD No. WLP-21Survey t Presentation:

tectite Inc. We, Ontario December, 1991

3lM13NE00et a.14559 MULLIGAN 430

CO*cea

CDCDro

CD CD

CD CD

CDCD CX1 ro

CDLO

L 1200 N

L 1000 N

L 800 N —

L 600 N

L 400 N

L 200 N

L 1200 N

L 1000 N

L 800 N

—L 600 N

L 400 N

L 200 N

CDCD LO

CD CD ro

CD CD

CD CD

CD CD

CDCD

CD CD ro

CDCD

CD CD LO

CO ^1CD

31M13NE0001 2.14559 MULLIGAN 440

\N

Declination: 12* W

LEGEND

Scale: 1:5000

Contour Interval: 10 nT50 nT

250 nT1000 nT


Instruments: EDA Instruments Omni IV Base Station Magnetometer Omni Plus Field Magnetometer

Base Station Location: 470-59'-00" Latitude790-31'-00" Longitude


Base Station Sample Interval: 15 sec.

100Scale 1:5000

O 100 200 300

(metres)


lcefish Lake GridGROUND MAGNETOMETER SURVEY

Total Magnetic Field ContoursRattray Township


NTS: 31 y/l 3 Uap No. WLP-22Survey 4 Presentation:

TechTerra Inc. OoMe, Ontario December, 1991

CDCD

CDCD r-O

CD O

CD CD

CD CD

CDCD

CD CD

CD CDLO

L 1200 N —

L 1000 N

L 800 N —

L 600 N

L 400 N

L 200 N

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

CD CD LO

CDCD

CD CDOJ

CD CD CD

LO

N

lDeclination: 121 W

LEGEND

Scale: 1:5000



Quadrature Profiles: -


Instrument: Geonic EU-16 Receiver



Survey Direction: E-W Lines; Facing East

100Scale 1:5000

100 200 300

(metres)


lcefish Lake GridGROUND VLF-EM SURVEY

Postings 4 Profiles of NAA FrequencyRattray Township


NTS: 31 y/13 Map No. WLP-23Survey 4 Presentation:

JechTerrex Inc. OoMe, Ontario December, 1991

31M13NEBC0I 2.14559 MULLIGAN

CD CD CDCDCsl

OCD CD CD

CDC3to

O CD

LO

L 1200 N

L 1000 N

L 800 N

L 600 N —

L 400 N

L 200 N

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

OCD LO

CDCD

CD CD Cvl

CD CD CXI

CD CDto

CD CD

CD CDLO

N

lDeclination: 12* W

LEGEND

Scale: 1:5000

Contour Interval:


Instruments: Geonics EU-16 Receiver




100Scale 1:5000

100 200 300

(metres)



Fraser Rlter Contours of NAA FrequencyRattray Township


NTS: 31 M/13 Map No. WLP-24Survey 4 Presentation:

TechTerrex Inc. day le, Ontario December, 1991

31M13NE8B01 2 .14559 MULLIGAN 460

CD CD -tf-

CDCDOsl

CD CD

CD CD CVI

CD CDro

CD CD

CD CD LO

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

: O.-A p p o Q o o O O O O Q OOO OOOOPPPPOs e s a 5 a 5

O O p p O* s *s sl—l—l—lo ooo oooo

p p o o o2 X Si S* i x

BOO O O p O

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

CD

CD CD LO

CD CD

CDCD

CD CDOs)

CD CD

CD CD

CD CD

CDCD

CD CD LO

31M13NEWB1 2.14559 MULLIGAN

N

Declination: 12* W

LEGEND

Scale: 1:5000





Instrument: Geonics EM-16 Receiver




100Scale 1:5000

O 100 200 JOG

(metres)

r


Icefish Lake GridGROUND VLF-EM SURVEY

Postings A Profiles of NSS FrequencyRattray Township


NTS: 31 M/13 Mop No. W.P-25Sumy 4 Presentation:

lechTerrex Inc. Oak*, Ontario December. 1991

CD CD CDCDCXJ

cfoCD

CD CD

O O CDro CD

CD CD LO

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

CD CD LO

CD CD

CD CD

CD CD Cvl

CD CD

CD CD OJ

CD CDro

CD CD LO

N

IDeclination; 12' W

LEGEND

Scale: 1:5000

Contour Interval:


Instruments: Geonics EM-16 Receiver




100Scale 1:5000

o 100 200 m(metres)



Fraser Filter Contours of NSS FrequencyRattray Township


NTS: 31 M/13 Mop No. WLP-26Survey ft Presentation:

lechTerrex Inc. Oak*, Ontario December, 1991

31M13NE0001 2.14559 MULLIGAN •480

L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

UJ

UJCO

DQ

CDCD CD CDro

CD CD

CDCD

CD CDOs]

CD CD

CD CD

CD CDLO

— L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N

CD CDLO

CD CD

CD CD

CD CD

CDCD

CDCD

CD CD OJ

CD CD ro

CD CD

CD CDLO

UJ

QCD

*N

Declination: 12' W

LEGEND

Approximate outline of magnetic body with identification and dip......

01

Axis of VLF-EM conductor; poor, mediocre and fair, with identification ..... ........,-

Axis of horizontal loop EM conductor and identlflcation....................

IL-VC1

IL-HC1

Interpreted faultand/or shear zone..........

M = Magnetic support V - VLF-EM support

To accompany report by F. L. Jagodits, P.Eng.,Consulting geophysicist

100Scale 1:5000

O 100 200 300

(metres)


lcefish Lake Grid RUIN OF INTERPRETATION


OntarioNTS: 31 y/13 Map No. WLP-3Q

Survey ft Presentation: Merren he.

199131M13NE0IB01 2.14559 MULLIGAN 430

CO

CD CD

CDCD

CD CD

CD CD

CDCD

CD CD

CDCD

LO

L 1200 N

68II3

L 1000 N

L 800 N

68II7

L 600 N

L 400 N

L 200 N

i i i i i i i i t t i i i i ijV i-1 i i l t i i i L 1200 N

L 1000 N

L 800 N

L 600 N

L 400 N

L 200 N68I24

CD CD LO

CDCD

CD CDCD CDro cvj

CD CD

CD CD CD

CDCD ro

CD CDLO

COm

iN

lDeclination: ir W

LEGEND

Scale: 1:5000

Pond/Lake

Stream . ..

Road

Trail

Claim Line.

Located Claim Post.

Assumed Claim Post D

100Scale 1:5000

O 100 200 300

(metres)


lcefish Lake Grid

TOPOGRAPHY


OntarioNTS: 311/13 yap No. WLP-20

Survey 4 Presentation: lechTerrex Inc. Oak*, Ontario December, 1991

31M13NE0C01 2.14559 MULLIGAN 500

CD CDr— -

CD 0co LO O

CD CDro

CDCD CD

UJ

CD CD

CD CDCNJ

CD CD

CD CD

CD CDLO

CD CDco

CD CD

L O —

L 200 S

L 400 S

L 600 S

L O

L 400

L 600iiiii

\ — — — s

L 800 S l————r-

CD in cq cq r~- d d d dr-i-T-r

; If! r-; IT) ro f"; CTI ^D^" 5 WJ~ "^T;-. Q rO ^———I r-j

————l—————l—————l—————l—————l————J————l————^—i l—————l—————l—————\4 \* . l—————l-

1 1 1 1

— —— -**~ ^ tw ea

r"^vJ——i——i——i——l ± 'o in ^a^^jo r^j^tg i^ U t^-J d tM r^ rt ^ c-i ^ CM

H———,———l———l L 800

L 1000 S

L 1200 S

L 1400 S •——~ "Ob

L 1600 Sm o 10 o r-, en CTI

L 1800 S

L 2000 Sr-, -w- r- o 10 i~-m

L 2200 S

L 2400 S d oq r-; cj -r-

L 2600 S

L 2800 S

L 3000 S

L 3200 S 10 o CM oO l O l OOOOOOOOO l OOCJOOOO

^•^-—-^——H -^ ** ^ ** r^ "f—^fa-^P to r~ "^ r~- *o ro CM

l l l l l t l

L 1

L 1200 Sd*-Tr

L 1

i

L-

L 1800 S

L

L 2200 S

L 2400 S

L 2600 S

L

i 3nnnL iJL/UU

-i - T - r L 3200 Sro c i CM CM CN

LU

CD CDoo

CD CDr--

CD CDco

CDLO CD-*fr-CD CD

CD CD

CD CD

CD CD

CD CDCM

CD CD rO

CD CDLO

LU

CD CD CO

CD CDr~-

Declination; 12* W

LEGEND

Scale: 1:5000


Profile Base Level: O 'Z

In-Phase Profiles:




Frequency: 444 Hz.



100Scale 1:5000

0 100 200 300

(metres)


Wendigo B GridHORIZONTAL LOOP EM SURVEY 444 Hz. Postings ft Profiles

Skead TownshipLarder Lake Mining Division


Survey 4 Presentation: TechTerrex Inc. Oak*, Ontario December, 1991

31M13NE0001 2.14559 MULLIGAN510

r-.CD CD CO

CD CD LO

CD CD

roCD

CD CD

CD CD Csl

CD CDro

CD CD CO

CD CD

L O

L 200 S

L 400 S

L 600 S

L 800 S —

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S —

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

— L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

CDCDoo

CD CD

CD CD CO

CD CD LO

CD CD CD

CD CD

CD CD

CD CDCNI

CD CDro

CD CD LO

CD CO r--

Declination: 12* W

LEGEND

Scale: 1:5000


Profile Base Level: O %

In-Phose Profiles:




Frequency: 1777 Hz.



100Scale 1:5000

O 100 200 300

(metres)

a2


Wendigo B GridHORIZONTAL LOOP EM SURVEY 1777 Hz. Postings ft Profiles


OntarioNTS: 31 y/13 Map No. WLP-17

Survey t Presentation: Techlera Inc. Oakville, Ontario December, 1991

520

LO

CD CD CXI

CDenLO

enCO

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

•r- \ft Ift

S S rf

j us to" in r- ^i f*J T ""t ! -ST* na6pj-*eacJ^o*ocp

x — ^ ^ en o IB — Mr- ts~~ in —

-^ O oi ^

L O

L 200 S

L 400 S

L 600 S

L 800 S

L 1000 S

L 1200 S

L 1400 S

L 1600 S

L 1800 S

L 2000 S

L 2200 S

L 2400 S

L 2600 S

L 2800 S

L 3000 S

L 3200 S

CD CD ooen en

en enLO

en en CDro

en enCNJ

en enLO

CD CD

Declination: 12' W

LEGEND

Scale: 1:5000


Profile Base Level: O %

In-Phase Profiles:




Frequency: 3555 Hz.



100Scale 1:5000

O 100 200 300

(metres)

2


Wendigo B GridHORIZONTAL LOOP EM SURVEY 3555 Hz. Postings fc Profiles



Survey 4 Presentation: TechTerrex inc. Ookvile, Ontario December, 1991

31M13NE0001 2 .14559 MULLIGAN 530

OO

CO

O

O C

O

en

o

o en

ro o

o CO

CO

co

o

o CO

CD o

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o

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o

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C

D

O CO

oo

o

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o

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ho o

o 00

01 * o80

0 W

700

W—

600

W—

500

W_

400

W

300

W—

200

W—

100

W_

BASE

LINE

100

E—

200

E—

300

E—

400

E_

500

E

600

E —

700

E—

5666

0.658

563.5

5871

1.258

579.7

5864

6.458

643.1

5862

3,958

546.5

5882

5,158

753.1

5882

8.558

797,4

5877

2.558

830.7

5885

9.958

914,

058

943,

158

962.1

5898

2.959

051.8

5905

6.059

036.7

5907

0.059

046.9

5905

5.059

072.1

5908

1.4

5908

6.459

089.0

5920

6.659

278.1

5925

8.959

293.0

5933

6.259

377,

159

407,

159

386.7

5934

5.859

336.0

5936

3.2

5948

3.459

495.0

5950

9.4--5

9511

.3

5952

7.1

5956

3.3

5960

1.3

5961

5.5

5962

0.0

5961

2.8

5958

1.4--5

9559

.4

5956

1.8

5960

7.7

5881

9.558

541.

459

738.

258

619.4

5869

1.358

747.8

5845

8.058

616.3

5864

7.8

5869

1.7

5878

2.7

5876

2.4

5874

2.658

780.6

5881

3.058

856.5

5891

2.758

934.4

5898

3.358

862.6

5900

3.559

042.

759

075.1

5907

8.0

5908

1.3

5910

2.2

5914

8.759

169.2

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Declination: \ T W

LEGEND

Scale: 1:5000

Contour Interval: 50 nT200 nT

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Instruments: EDA Instruments Omni IV Bose Station Magnetometer Omni Plus Field Magnetometer

Base Station Location: 47 0-58'-45" Latitude 790-38'-40" Longitude


Bose Station Sample Interval: 15 sec.

100Scale 1:5000

O 100 200

(metres)

'' A


Wendigo B GridGROUND MAGNETOMETER SURVEY

Total Magnetic Field ContoursSkead Township


NTS: 31 M/13 Map No. WLP-11Survey 4 Presentation:

TediTenex Inc. Oakville, Ontario December, 1991

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LEGEND

Scale: 1:5000

Contour Interval:






100Scale 1:5000

O 100 . 200 300

(metres)


Wendigo B GridGROUND VLF-EM SURVEY

Fraser Filter Contours of NSS FrequencySkead Township


NTS: 31 y/13 Map No. IP-15Survey k Presentation:

lechlerrex Inc. OaMe, Ontario December, 1991

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LEGEND

Scale: 1:5000

Contour Interval:






100Scale 1:5000

O 100 200 300

(metres)


Wendigo B GridGROUND VLF-EM SURVEY

Fraser Filter Contours of NAA FrequencySkead Township


NTS: 31 U/13 Map No. WLP-13Survey 4 Presentation:

TechTerrex Inc. Oakvile, Ontario December, 1991

L O

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LEGEND

Outline of magnetic domain Im - mafic intrusive C I m

Outline of.magnetic body. '---~7~7// /"7

Axis of horizontal loop, EM conductor with identification and dip WB-HC1

Q ~ Quadrature response only

Axis of VLF-EM conductor;, poor, mediocre and fair, with identification ....r— —

Interpreted fault and/or shear zone......................

M = Magnetic support V - VLF-EM support

Approximate location ofQUESTEM anomaly,

2-6 channel response 6-12 channel response

WB-VC1A

v M

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To accompany report by F. L. Jagodits, P.Eng.,Consulting geophysicist

100Scale 1:5000

O 100 200 300

(metres)

r


Wendigo B Grid PLAN OF INTERPRETATION



Survey t Presentation: TediTenex Inc. O**, Ontario December, 1991

600

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Declination: 121 W

LEGEND

Scale: 1:5000

Pond/Lake

Stream

Road ........

Trail

Claim Line

Located Claim Post

Assumed Claim Post

100Scale 1:5000

O 100 200 300

(metres)


Wendigo B Grid

TOPOGRAPHY


OntarioNTS: 31 M/13 Map No. WLP-Q9

Survey 4 Presentation: lecrilerrex Inc. Odkvi, Ontario December, 1991

31MI3NE0aai 2.14559 MULLIGAN G10

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