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32E04NW01 01 2.7934 CASE —""".i.

REPORT

ON

l COMBINED HELICOPTER ELECTROMAGNETIC,

VLF AND MAGNETOMETER SURVEY

" ABBOTSFORD TOWNSHIP RECEIVED

l NORTHEASTERN ONTARIO ^" '

MINING IANOS SECTIONFOR

MINEREX RESOURCES LIMITEDll VANCOUVER, B.C.

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l Toronto, Ontario J. Roth, M.A. January, 1985 MPH Consulting Limited

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32E04NW0101 2.7934 CASE

TABLE OF CONTENTS

PAGE NO.

SUMMARY

1.0 INTRODUCTION l

2.0 LOCATION AND ACCESS 3

3.0 GEOLOGY 4

4.0 PREVIOUS EXPLORATION 6

5.0 SURVEY PROCEDURES, EQUIPMENT, AND PERSONNEL 8

5.1 General 8

5.2 Aircraft 8

5.3 Equipment 8

5.3.1 Electromagnetic System 8

5.3.2 VLF-EM System 8

5.3.3 Magnetometer 9

5.3.4 Magnetic Base Station 9

5.3.5 Radar Altimeter 9

5.3.6 Tracking Camera 9

5.3.7 Analog Recorder 9

5.3.8 Radar Positioning System 10

5.3.9 Digital Recorder 10

5.4 Personnel 11

6.0 DATA REDUCTION AND PRESENTATION 12

6.1 Base Map and Flight Path 12

6.2 Magnetics 12

6.3 Electromagnetics 12

6.4 VLF-EM 14

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TABLE OF CONTENTS

(continued)

PAGE NO.

m 7.0 INTERPRETATION 15

l 7.1 Aeromagnetice 15

7.2 Electromagnetics 16

l 7.3 VLF-EM 27

8.0 CONCLUSIONS 29

9.0 RECOMMENDATIONS 31

CERTIFICATE

REFERENCES

APPENDICES

APPENDIX A List of Claims

APPENDIX B List of EM Anomalies

(932 Hz Coaxial Coils)

LIST OF FIGURES

l l lm Figure l Location Map l 50,000

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l LIST OF MAPS

M Map l Contoured Total Field Magnetics with

EM Anomalies l 15,000

l Map 2 EM Profiles with Anomalies 1:15,000

- 932 Hz Coaxial Coils

Map 3 EM Profiles for 4137 Hz Co-planar and 1.15,000

l 4510 Hz Coaxial Coils

l Map 4 Interpreted Conductors with EM Anomalies 1.15,000

* - 932 Hz Coaxial Coils

B Map 5 Contoured VLF-EM Total Field with 1.15,000

Interpreted VLF Conductors

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SUMMARY

A helicopter magnetic-electromagnetic-VLF survey was flown by Aerodat

Ltd. in November, 1984 under the direction of MPH Consulting Limited of

Toronto on behalf of Minerex Resources Limited of Vancouver over the

letter's 61 claim property in Abbotsford Township in northwestern

Ontario.

Executed as part of an overall gold exploration program, the survey com

prised 94 line kilometers flown at 1/8 mile spacing and oriented north

east to cross the dominant stratigraphic trends.

The property lies within a narrow band of metavolcanics and metsediments

forming part of the Abitibi Greenstone Belt. The dominant lithologies

are intermediate volcanics and tuffs and contain several continuous iron

formations, all trending northwest. Prior exploration, including at

least 15 drill holes on or near the property, has outlined numerous sul

phide horizons, some of which contain minor base metal or trace gold

values. These geological characteristics suggest a geological environ

ment favourable for gold deposits similar to Joutel and/or Golden Pond.

The survey successfully achieved its objective of providing significant

information pertinent to the further exploration of the property for gold

deposits in that:

1. The magnetic data defined two linear bands of iron formation.

2. The EM data delineated 20 definite and probable bedrock conductors

within the greenstone belt. Six conductors with directly coincident

magnetic anomalies are interpreted as probable massive sulphides or

sulphide iron formation. The remaining conductors are likely graphi

tic horizons or narrow pyrite/pyrrhotite zones adjacent to strongly

magnetic oxide iron formations.


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3. Tentative correlation of prior exploration work with the present

geophysical results indicates that six conductors have not been

previously drilled^ subject to further field checking and delinea

tion, these represent credible drill targets.

4. The VLF data, while less diagnostic than the EM results, provided

confirmatory indications of various EM bedrock conductors and out

lines areas with thicker conductive overburden.

On the basis of the survey results, a modest program of ground geophysics

and field checking at an estimated cost of $15,000 is recommended before

any drilling is undertaken.

The results of this program will determine the scope and location of

possible drilling, tentatively estimated to comprise 1,000 m in 6 holes

at a projected cost of approximately $85,000.


1.0 INTRODUCTION

This report presents the results of an airborne geophysical survey

carried out in northeastern Ontario by Aerodat Limited of Toronto under

the direction of MPH Consulting Limited on behalf of Minerex Resources

Ltd. of Vancouver, British Columbia, as commissioned by letter dated

October 11, 1984.

The survey was executed as part of a program intended to explore the pro

perty for its gold potential. In terms of possible geophysical signa

tures, such deposits might be directly or indirectly related to conduc

tive sulphides or graphite, or associated with a magnetic iron forma

tion.

The combined electromagnetic, magnetic and VLF-EM survey was flown on

November 14, 1984. A total of 94 line kilometers (58 line miles) were

flown within the specified survey boundary, of which 59.5 line kilometers

(37 line miles) were inside the property. The claims on which assessment

credit is requested are listed on Appendix A.


49* 10'N

79 0 50'W

_Property Claim Boundary

Scale: 1:50.000

Figure 1. Survey area location


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2.0 LOCATION, ACCESS AND INFRASTRUCTURE

The property is located in Abbotsford Township, District of Cochrane,

Larder Lake Mining Division, Ontario. The area lies approximately 110 km

east of Cochrane, Ontario and 60 km north-northwest of La Sarre, Quebec

(see Figure 1).

The property consists of 61 unpatented mining claims in one contiguous

block (North Group). The claim numbers and recording dates can be found

in Appendix A.

The property is easily accessed by all-weather gravel roads from either

Cochrane or La Sarre. The Translimit Road, maintained by Abitibi-Price

In. passes within 10 km of the property. Former logging roads, many of

which are now overgrown, provide the means for vehicular access to the

ground.


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3.0 GEOLOGY

The geology of Abbotsford Township has been mapped in several studies,

most recently by Lumbers (1963) and Johns (1982) for the OGS.

Abbotsford Township lies near the edge of the most southerly advance of

the Late Cochrane Ice Front; however, glaciofluvial and glaciolacustrine

deposits (sand and clay) associated with Lake Barlow-0Jibway dominate the

surficial landscape.

Outcrops occur as southeasterly trending ridges with maximum relief of

about 50 m above the surrounding ground. The most extensive areas of

outcrop are found southeast of the claim group.

In general, Abbotsford Township lies within the Archean Abitibi orogen.

A narrow belt of metavolcanics and metasediments trends northwest-

southeast across the township. The supracrustal rocks have been folded

and squeezed between two large granitic domains.

The bedrock geology of the property, determined by field mapping and

lithogeochemical analyses carried out by MPH earlier in 1984 (Siriunas,

1984), consists of a variety of metavolcanics and metasediments. The

volcanics are dominantly of a tuffaceous origin and intermediate to

felsic in composition. The metasediments are primary greywackes with

locally developed chemical sediments (cherts, iron-rich mudstones,

pyritic horizons). As seen in the published government aeromagnetic

coverage, the iron-rich mudstones from the dominant magnetic features.

In terms of economic geology, there are no significant gold or base metal

showings known on the property. However, the stratigraphy is correlative

with that hosting the Normetal base metal deposit to the southeast, and

may also correlate with the lithologies hosting gold mineralization at

Joutel and at Golden Pond in Quebec.

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Sampling of exposures of disseminated-to-massive pyritic horizons

I returned low gold values, as well as negligible base metal values.

Diamond drilling in previous exploration programs recorded only minor

base metal and gold values from the various conductors tested.

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4.0 PREVIOUS EXPLORATION

Exploration has been on-going in the region since gold was discovered on

the Patten River in 1912.

As recapitulated by Siriunas (1984) in his report, exploration since 1965

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has been carried out on and adjacent to the present property by.

Canadian Javelin, 1965

- AEM survey and ground follow-up

- 14 DDHs to test conductors intersected sulphides in metavolcanics and

metasediments with no significant base metal values.

Canadian Superior Exploration Ltd., 1966


- 8 DDHs (A-65 series) to test conductors intersected

graphite with no significant base metal values.

Keevil Mining Group Ltd., 1966

sulphides and

- 3 DDHs to test conductors intersected pyrite-pyrrhotite zones in

metavolcanics; no significant assays.

Stamford Mines Ltd., 1972-1973

- ground geophysical surveys

- 3 DDHs (S series) to test conductors. Drilling intersected sulphides

and graphite in metavolcanics and metasediments with

assays.

Dome Exploration Ltd., 1975-1977


- 21 DDHs (101C series) to test conductors, including

present property. DDHs intersected lenses of pyrite

within felsic to intermediate tuffs. Minor base metal

over narrow widths. Maximum gold assay: 0.01 oz/T over

no significant

8 DDHs within

and pyrrhotite

values recorded

8.9 feet.

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Geophysical Engineering Ltd., 1977

I- l DDH to test conductor. Drilling intersected minor graphite with

disseminated pyrrhotite and pyrite carrying minor Cu and Zn values.

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5.0 SURVEY PROCEDURES, EQUIPMENT AND PERSONNEL

5.1 General

The survey was flown at a line spacing of 1/8 mile, with a flight

line orientation of N 25 0 E. The EM bird was maintained at an aver

age terrain clearance of 35 m. The entire survey was completed on

one flight on November 14, 1984, operating from La Sarre, Quebec.

5.2 Aircraft

The aircraft used for the survey was an Aerospatiale A-Star 350D

helicopter owned and operated by Maple Leaf Helicopters. Installa

tion of the geophysical and ancillary equipment was carried out by

Aerodat. The helicopter was flown at a nominal altitude of 60

meters and an average speed of 100 km per hour.

5.3 Equipment

5.3.1 Electromagnetic System

A three-frequency electromagnetic system deigned by Geonics

was used for the survey. The system consists of two vertical

coaxial coil pairs operated at 932 Hz and 4510 Hz, and a hor

izontal coplanar coil pair at 4137 Hz. These coil pairs,

which have a separation of 6.9 meters, are mounted in a bird

towed 30 metes below the helicopter. In-phase and quadrature

signals were measured simultaneously to * 0.1 ppm for the 3

frequencies with a time constant of 0.1 seconds. System

calibration was performed before and after every flight.

5.3.2 VLF-EM System

The VLF-EM System was a Herz 1A. This instrument measures

the total field and vertical quadrature to +1.0% components

at the selected frequency. The sensor was towed in a bird 15

meters below the helicopter. The transmitting station used

was NAA (24.0 kHz) at Cutler, Maine.

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5.3.3 Magnetometer

The survey employed a Geometrics G-803 proton precession mag

netometer. The sensitivity of the instrument is 1.0 gamma at

a 0.5 second sample rate. The sensor was towed in a bird 15

meters below the helicopter.

5.3.4 Magnetic Base Station

An IFG proton precession magnetometer was operated at the

survey base to monitor and record diurnal variations of the

earth's magnetic field. The clock of the base station was

synchronized with that of the airborne system.

5.3.5 Radar Altimeter

A Hoffman HRA-100 radar altimeter was used to record terrain

clearance of the helicopter. For maximum accuracy, the out

put voltage from the instrument is a linear function of the

altitude.

5.3.6 Tracking Camera

A Geocara tracking camera, operated in strip mode, was used to

record the flight path on 35 mm film. For the purpose of

cross-reference to the analog and digital data, time fiducial

numbers were imprinted on the margin of the film.

5.3.7 Analog Recorder

A multi-channel RMS dot-matrix analog recorder was used to

display the data during the survey. In addition to manual

and time fiducials, the following data was recorded;

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Input

13 Altimeter (500 ft. at top of chart)

14 Magnetometer (fine)

07 VLF Total Field

06 VLF Quadrature

05 4137 Hz Coplanar Quadrature

04 4137 Hz Coplanar In-phase

03 4510 Hz Coaxial Quadrature

02 4510 Hz Coaxial In-phase

15 Magnetometer (coarse)

01 932 Hz Coaxial Quadrature

00 932 Hz Coaxial In-phase

Scale

10 ft./mm

2.5 gamma/mm

2.5 %/mra

2.5 %/mm

4 ppm/mm

4 ppm/mm

2 ppm/mm

2 ppm/mm

24 gamma/mm

2 ppm/mm

2 ppm/mm

5.3.8 Radar Positioning System

A Motorola Mini-Ranger (MRS III) radar navigation system was

utilized for both navigation and track recovery. Transpon

ders installed at fixed known locations were interrogated

several times per second and the ranges from these points to

the helicopter measured to several meters accuracy. An on

board computer triangulates the position of the helicopter

and provides the pilot with navigational information. The

range/range data was recorded on magnetic tape for subsequent

flight path determination.

5.3.9 Digital Recorder

A Perle DAC/NAV data system recorded the survey data on cas

sette magnetic tape. Information recorded as follows:

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Equipment

EM

VLF-EM

Magnetometer

Altimeter

MRS III

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Sensitivity

0.1 ppm

Q.1%

O.l gamma

10 ft.

3 ft.

Interval

0.1 sec.

0.1 sec.

0.5 sec.

0.7 sec.

0.5 sec.

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5.4 Personnel

Aerodat personnel directly involved with the survey operation

included:

Pilot: Roger Morrow

Equipment Operator/Technician: Pierre Moisan

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Data reduction and plotting weas subsequently carried out at

Aerodat's office under the direction of Richard Yee.

The author provided over-all technical supervision and inter

pretation of the survey.

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6.0 DATA REDUCTION AND PRESENTATION

6.1 Base Map and Flight Path

Photo map bases at 1:15,000 scale were prepared by enlargement of

aerial photographs of the area to provide provisional flight path

control for the survey.

The actual flight path was derived from the Mini-Ranger radar pos

itioning system. There were no significant intervals in which Mini-

Ranger data was missing or erratic, so that the accuracy of the

flight path map is judged to be high.

6.2 Magnetics

The aeromagnetic data were corrected for diurnal variations by sub

traction of the digitally recorded base station magnetic profile.

No correction for regional variations was applied.

The corrected profile data were interpolated onto a regular grid at

a 2.5 mm interval using a cubic spline technique. The grid provided

the basis for threading the plotted contours at a 10 gamma inter

val.

The contoured aeromagnetic data are presented in Map l at a scale of

1:15,000 with the identified electromagnetic anomalies.

6.3 Electromagnetics

The digitally recorded electromagnetic data was processed to remove

spikes caused by local spheric activity.

These sharp, large amplitude events cannot be removed by convention

al filtering procedures. Smoothing or stacking will reduce their

amplitude but leave a broader residual response that can be confused

with a valid geological anomaly. To avoid this possibility, a two

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stage digital filtering process first searches out and rejects the

major sferic events.

The signal to noise ratio was further enhanced by the application of

a low pass digital filter. It has zero phase shift which prevents

any lag or peak displacement from occurring, and it suppresses only

variations with a wavelength less than about 0.25 seconds. This

short wavelength avoids profile shape distortion.

Following the filtering processes, a base level correction was made.

The correction applied is a linear function of time that ensures

that the corrected amplitude of the various in-phase and quadrature

components is zero when no conductive or permeable source is pre

sent. The filtered and levelled data were then plotted as pro

files.

Using the digital file containing processed profile data, signifi

cant EM responses were identified and anomaly parameters (location,

amplitudes, conductivity-thickness and depth) computed and compiled.

The selected electromagnetic anomalies for the 932 Hz data with

computed anomaly parameters have been plotted together with the

in-phase and quadrature profiles at a scale of 1:15,000 (Map 2).

The in-phase and quadrature responses of the coaxial 4510 Hz and the

coplanar 4137 Hz configurations were plotted with the flight path

and are presented as an overlay at a scale of 1.15,000 (Map 3).

The individual identified and analyzed EM anomalies were linked to

form the conductors shown on Map 4. Those conductors rated as

definite or probable bedrock features have been designated as con

ductive zones, numbered l through 20.

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6.4 VLF-EM

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The VLF-EM total field data were reduced by subtracting the mean

response level. The data were then gridded and contoured at an

interval of 2%, with the EM anomalies superimposed, as seen in Map

5. The significant VLF conductors are shown superimposed on this

map.

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7.0 INTERPRETATION

In the following discussion of the survey results, the aeromagnetic data

will be discussed first followed by an appraisal of the airborne EM data

and VLF-EM data, including the correlation of significant airborne EM

responses with magnetic features.

7.1 Magnetics (Map 1)

The contoured aeromagnetic data seen in Map l exhibit a rich and

complex variety of magnetic terrains.

The most prominent magnetic anomalies are two parallel bands of very

strong, linear, positive anomalies which trend across the entire

property in a northwesterly direction. The sources of the anomalies

are all quite shallow and quasi-vertical in dip. The deduced very

high susceptibility is entirely consistent, with sulphide and/or

oxide iron formations.

In detail, the more northerly anomaly consists of a single, narrow

response with an indicated modest interruption near line 180.

The southern band, on the other hand, consists of two parallel

narrow, linear zones that are somewhat more variable in character

than the northern band. This variability may indicate faulting near

line 130 and 170, although there is no significant indicated lateral

displacement.

These two bands of interpreted iron formation are flanked by rela

tively quiet magnetic environments to the northeast and southwest.

From the published geology, the magnetically bland area to the

southwest probably coincides with intrusive granite.

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The relatively bland area to the northeast is likely sediments or

felsic to intermediate volcanics.

Finally, along the northeast edge of the survey are a series of mag

netic responses varying in intensity, shape and extent which exhibit

a general northwest trend parallel to the general stratigraphy.

These anomalies could well represent more mafic volcanics near the

northwestern edge of the narrow greenstone belt.

The correlations of the magnetic features with the identified EM

anomalies will be discussed in the following section.

7.2 Electromagnetics (Maps 2, 3 and A)

The observed responses of the selected anomalies have been interpre

ted in terms of narrow conductive dykes in free-space using a look

up table of computed models. This analysis yields an interpreted

value for the conductivity-thickness (conductance) in mhos and a

depth below the surface in meters. This process was carried out for

both the low frequency and high frequency data.

Only the low frequency results (tabulated in Appendix B) have been

plotted, since the conductance values at this frequency are less

distorted by the presence of conductive overburden. The range of

conductance values is also shown pictorially to enable rapid

appreciation of consistency or variations in conductivity of a given

conductor.

The computed depths, which range from surface to 35 m, exhibit

credible consistency from line to line. However, the actual depths

likely exhibit a smaller range, since the calculated depths for the

low frequency tend to yield exaggerated values.

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The more persistent credible EM conductors have been assigned zone

designations and these zones will be briefly discussed below, pro

ceeding from southwest to northeast across the stratigraphy.

Note that the attempted correlation of prior drilling with the

present survey results is tentative due to locational uncertainty,

which may account for some obvious inconsistencies between the drill

results and the geophysically predicted cause of various conduc

tors .

Zone l, in the northwest corner of the survey, exhibits weak to

moderate amplitudes and similarly poor to moderate conductances.

The zone is best expressed on lines 21 and 30. It falls on the

southwestern flank of the second band of iron formations, and is

consequently probably caused by a graphitic horizon within sediments

or intermediate volcanics. It may have been tested by DDK S-3,

which intersected a narrow interval of pyrrhotite in metasediments.

Zone la, to the southeast of Zone l, is a very weak subsidiary

response of very low conductance, occurring sporadically on lines

between 90 and 130. It lies at the same position vis-a-vis the

magnetics as the stronger Zone l to the northwest. If a valid bed

rock conductor, it could reflect a very weakly conductive graphite

horizon.

Zone 2, lying immediately northeast of Zone l, is a long, persistent

response that extends over the entire survey and probably continues

further to the northwest and southeast. While the zone generally

has low to moderate conductances, a central portion which extends

from line 93 to 160 displays stronger responses and somewhat higher

conductances.

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The zone as a whole parallels the magnetic stratigraphy very close

ly, falling on the southwest edge of the second band of iron forma

tions. In detail, the northwestern end of Zone 2, where conductan

ces are weak, is directly coincident with a magnetic low, while In

the central and southeastern portions, the zone follows along the

northeastern edge of a weak sublsdiary, linear magnetic response.

The overall characteristics of this zone and its geologic setting

suggest graphite as the probable cause. It may have been tested by

DDK S-3, which intersected pyrrhotite stringers in metasediments.

Zones 3 and 4 are parallel and immediately adjacent to Zone 2 to the

northeast.

In detail, Zone 3 is essentially a strong, one line response on line

21 with very high conductance. The conductor lies on the southwest

flank of the second band of iron formation. No drilling is recorded

near this location.

Zone 4, a highly probable continuation of Zone 3, is a long, very

strong EM conductor with conductances ranging from moderate to good.

The conductor appears to die out southeast of line 190. Zone A,

like Zone 3, lies on the southwest flank of the second band of iron

formation.

The characteristics of Zone 4 and its geologic setting are such as

to indicate that graphite is the probable source of the conductor.

The zone was probably tested by DDK S-2 (and possibly also S-l)

which intersected tuffs and sulphide iron formation.

Zone 3, which has similar characteristics, may also be caused by

graphite, although its apparent isolated character is also consis

tent with a short lense of non-magnetic sulphides.

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Conductive System 5 consists of four segments, Zones 5a through 3d

which collectively extend from the northwest edge of the survey to

line 190. All of the segments of System 5 display weak amplitudes

and conductances. The strongest segment of System 5 is Zone 5d,

extending between lines 140 and 170 where conductance attains a

maximum of 3 mhos.

System 5 is consistently coincident with a linear magnetic anomaly

that forms part of the second band of iron formation. The slight

offset in the magnetic feature between lines 40 and 60 is mirrored

in the similar offset of the EM conductor. Note that because of the

strong magnetic intensity, the in-phase response has probably been

somewhat suppressed due to permeability effects and thus the true

conductance may be higher in places than the conductance value

shown.

The geophysical characteristics of System 5 are such as to strongly

indicate conductive iron formation (which may include a sulphide

component) as the source. DDH S-l, which intersected massive

pyrrhotite in metasediments, may have tested Zone 5d.

System 6 consists of two segments, Zones 6a and 6b, in the northwest

sector of the survey. Both segments are weak to very weak with very

poor conductances and are principally indicated by quadrature

responses. Both segments of System 6 are consistently coincident

with a strong, linear magnetic feature forming part of the southwest

band of iron formation. The strong accompanying magnetic feature

has undoubtedly depressed the in-phase response and in fact negative

in-phase deflections can be seen due to magnetic permeability

effects. Thus, the true conductance is likely somewhat higher than

the very poor apparent conductance shown here.

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From the combined geophysical characteristics, conductive sulphide

iron formation is the most probable source of the conductor. No

drilling is reported on Zones 6a or 6b. DDK 101C-12, two kilome

ters to the northwest may have tested an extension of this feature,

it intersected sulphide iron formation.

Zone 7, which is weakly expressed on two lines (240 and 250) in the

southeast sector of the survey, has low conductances and weak ampli

tudes. It lies on the southwest flank of one of the strong magnetic

features forming part of the second band of iron formations. Graph

ite is consequently the probable source of the conductor.

A possible continuation of Zone 7 may have been tested 3 km to the

southeast by DDKs A-65-7-1 through -3, which intersected a sulphide

iron formation.

Zone 8a extends between line 40 and line 110 in the northwest sector

of the survey. Anomaly amplitudes are strong and calculated conduc

tances range from moderate to good. The conductive zone follows

consistently along the southwest flank of the very strong magnetic

feature forming the first band of iron formation.

A probable" continuation to the southeast, Zone 8b, lies at a similar

position vis-a-vis the magnetics, but has only weak amplitudes and

low conductances.

The geophysical characteristics of Zones 8a and 8b indicate graphite

adjacent to an iron formation is the probable source of the conduc

tors, although a sulphide horizon is a plausible alternative.

Zone 8a may have been tested by DDH 101C-5 which intersected inter

mediate tuffs with a narrow massive pyrrhotite interval. No drill

ing is known to have tested Zone 8b.

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Zone 9 is a very long double conductor persisting across most of the

survey and undoubtedly extending further to the northwest beyond the

present survey limits. It lies very close to and immediately north

east of Zone 8 and, in fact, forms with Zone 8 a series of very

closely spaced responses that have been resolved as individual con

ductors only by virtue of the high intrinsic resolution of the

Aerodat system. Zone 9 displays especially high conductances

between lines 50 and 90.

Zone 9 falls on the southwest edge of the strong magnetic feature

forming the first band of iron fomration. This, together with its

multiplicity, length and geologic environment, sugggests that Zone 9

is caused by sulphide iron formation, or less likely, a graphitic

horizon adjacent to an oxide iron formation.

Zone 9 has probably been tested by at least three DDHs 101C-4, -6

and -11. DDH 4 intersected intermediate volcanics and tuffs with a

narrow sulphide iron formation with minor Cu or Zn. DDH 6 intersec

ted a thick pyrite/pyrrhotite iron formation, while DDH 11 inter

sected metasediments and dacite with a narrow pyrrhotite interval.

It should be noted that neither Zone 8 nor Zone 9 show any particu

lar disruption in anomaly continuity or character between lines 170

and 190 where the linear trend of the magnetics does show some dis

ruption.

Zone 10 is a long conductor extending within the survey area from

line 10 to line 150, with a possible continuation formed by Zone 11

to the southeast. Zone 10 displays generally low conductances and

moderate amplitudes, with the stronger responses observed between

lines 21 through 90.

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Zone 10 consistently lies on the northeastern edge of the prominent

magnetic feature forming the first band of iron formation. Because

of the strength of this magnetic feature, in-phase responses on

several lines have undoubtedly been distorted and reduced, causing

the calculated conductance to be less than it is in reality. Form

ing an exception to the general flanking magnetic association of

Zone 10 is the response on line 80 which appears to be directly

coincident with the magnetic anomaly where it exhibits a slight

widening.

While the overall characteristics of Zone 10 tend to indicate graph

ite adjacent to an iron formation as the probable source, the some

what different characteristics of the conductor on line 80 point to

the possibility of sulphides at this location.

Zone 10 may have been tested by DDH 101C-7, which intersected mixed

volcanics with a narrow interval of massive pyrrhotite.

Zone li, to the southeast of Zone 10, has similarly low conductances

and low to moderate amplitudes. These characteristics closely

resemble those of Zone 10 to the northwest and based on the pattern

of EM anomalies alone, Zone 11 would be readily considered to be

simply an extension of Zone 10.

However, in terms of magnetic association, Zone 11 is for the most

part directly coincident with the strong magnetic anomaly interpre

ted as iron formation, and in this respect differs significantly

from Zone 10. The break between these two portions with differing

magnetic association corresponds to a disruption in the magnetic

features near line 180.

Thus, Zone 11 is a good candidate for a conductive sulphidic iron

formation and the change in character between Zone 10 and Zone 11

could reflect an associated facies change.

i


- 23 -

No drilling can be identified as having tested Zone 11. It may be

exposed near an area of outcrop at the southeast edge of the sur

vey.

Zone 12 is a weak to very weak and impersistent feature vaguely

discerned on lines 40 through 70 in the northern sector of the sur

vey. The most credible response is on line 50, although the calcula

ted conductance is still well below l mho. Zone 12 could be a very

weak impersistent bedrock conductor, particularly in the vicinity of

line 50. It is essentially lacking in any associated significant

magnetic feature. While the anomaly characteristics could reflect

conductive overburden, a weakly conductive graphite horizon is con

sidered more probable. No drilling is recorded at this location.

Zones 13 and 14, in the southeast sector of the survey, are spatial

ly closely associated and parallel. Anomaly amplitudes are weak and

conductances are poor to very poor. The features as a whole trend

parallel to the magnetic stratigraphy, lying somewhat to the north

east of the main magnetic feature interpreted as iron formation.

Thus, Zones 13 and 14 could be very weak bedrock conductors of

graphitic origin.

Known prior drilling does not appear to have tested Zones 13 and 14,

which may lie on strike with a band of altered intermediate volcan

ics.

Zone 15 is located in the northern sector of the survey, north of

the present property boundary. It is largely confined to a series

of multiple responses detected on line 10, all with poor to very

poor conductances. While the broad form of the overall response and

the indicated low conductance on this line would suggest conductive

overburden as the probable cause of this feature, drilling is recor

ded to the north of the present survey, indicating the feature prob

ably reflects real but weak bedrock conductors.


- 24 -

Zone 16, in the central portion of the survey, extends from line 140

to line 200. Amplitudes range from moderate to strong with calcula

ted conductances ranging from low to moderate. The conductor lies

within a magnetic low caused by the adjacent very strong positive

magnetic feature interpreted as iron formation. Graphite is inferr

ed to be the probable source of the conductor.

Zone 16 may have been tested by DDK 101C-2, which intersected mixed

volcanics with a narrow iron formation and a narrow (conductive)

graphite horizon.

Further to the southeast, Zone 17 is weakly evidenced on three

lines, 250 to 270. Anomaly characteristics, amplitudes and conduc

tances are all very poor. Zone 17 is only a questionable bedrock

conductor. If indeed a valid bedrock feature, it would lie at about

the same position vis-a-vis the magnetics as Zone 16 to the north

west and thus could also be a very weakly conductive, lean graphitic

zone.

Zone 17 is projected to lie within the band of altered intermediate

volcanics, with no prior drilling reported.

Conductive System 18 extends across the entire breadth of the survey

and undoubtedly continues further to the northwest and southeast

beyond the limits of the present survey. There are two segments,

Zones 18a and 18b, both of which have similarly poor to very poor

conductances and low amplitudes. The most credible portions of

these responses are to be found on line 90 and on lines 130 to 150

where conductances attain or exceed l mho. Elsewhere, the feature

reflects slight in-phase perturbations within a broad quadrature

response indicative of conductive overburden.


- 25 -

In terms of associated magnetic features, Zone 18a follows closely

and is essentially coincident with a narrow moderate amplitude mag

netic feature and thus could be a weakly conductive sulphidic hori

zon.

DDH 101C-9, which intersected several narrow iron formations with up

to 1(^ pyrrhotite probably tested Zone 18a, which lies largely north

of the present property boundary.

Zone 18b, on the other hand, lacks any coincident magnetic feature

and appears to largely lie southwest of a series of larger amplitude

magnetic features. This zone is more likely caused by weakly con

ductive graphite.

Zone 18b was possibly tested by two DDHs, lOlC-1 and -IB, which

intersected a narrow interval of 30X pyrrhotite with minor zinc and

trace gold.

Zone 19, in the eastern corner of the survey and east of the present

property, consists of two weak responses on line 270. This feature

may well extend further to the southeast beyond the limits of the

present survey.

Some intrigue is attached to this imperfectly delineated feature in

that anomaly H on line 270 is directly coincident with a local mag

netic anomaly, indicating the possibility of (magnetic) sulphides.

No drilling is reported at this location, although the conductor may

pass through a small area of outcropping intermediate volcanics.

Zone 20 extends from line 190 to possibly as far as 240 in the eas

tern corner of the survey, immediately northeast of the property

boundary. The conductor is best expressed on line 210 where the

interpreted conductance of 4 mhos at a depth of 22 m. In general,


- 26 -

response amplitudes are low to moderate and interpreted conductances

are poor to low. The conductor, judged a probable bedrock feature,

lies northeast of a broad magnetic high. A graphitic or pyritic

horizon is consistent with these geophysical characteristics. No

drilling is recorded at this location.

Additional Anomalies

In addition to the designated conductor zones discussed above, there

are a sparse number of additional very weak responses not assigned

a zone designation. Most of these are likely slight variations in

conductive overburden.

The high frequency co-axial responses seen in Figure 3 are largely

consistent with and confirmatory of the interpretation derived from

the 930 Hz data presented above. As mentioned earlier, the calcula

ted depths and conductance estimates both tend to be smaller for the

high frequency data than for the low frequency.

The high frequency data also recorded a number of broad, very poorly

conductive features. Their broad aspect and largely quadrature

response indicate conductive overburden as their probable cause.

The results obtained for the 4137 Hz co-planar coils shown in Figure

3 are also largely supportive of the conclusions derived from the

low frequency co-axial data. Where conductors are closely spaced,

the co-planar responses tend to exhibit a blurring of the individual

responses into broad zones, so that the diagnostic attributes of the

co-planar response as to conductor width and attitude is largely

lost. In addition, the in-phase component is also severely affected

by permeability effects over the strongly magnetic iron formations.

There is a suggestion, however, in the southeast portion of the

survey that the conductors on average are dipping to the southwest.


- 27 -

Conversely, where conductors are isolated, the diagnostic behaviour

of the co-planar responses supplies some additional insight. For

instance, on lines 60 and 70, the shape of the responses suggests a

steep dip to the northeast.

The high frequency co-planar data also show a considerable number of

broad, very low conductance responses which generally correspond to

similar features recorded on the high frequency co-axial profiles,

reflecting the presence of conductive overburden.

7.4 VLF-EM (Map 5)

The contoured VLF-EM total field values show numerous anomalies with

a dominant trend of northwest-southeast. The significant conductor

trends have been indicated on Map 5.

Utilizing the trends of bedrock conductors derived from the electro

magnetic results discussed above, the VLF conductors have been divi

ded into two categories as shown in Map 5:

i) probable to definite bedrock conductors (solid line), correla

ting with EM bedrock features;

ii) probable conductive overburden (dashed line), correlating with

high-frequency overburden-type EM responses.

Most of the valid bedrock conductors have a correlating VLF respon

se.

However, in several instances, a VLF anomaly, while initially con

gruent with an interpreted bedrock conductor, subsequently diverges

to follow another feature. One such example is seen near the north

western edge of the survey, where the VLF feature initially corre

lates with bedrock Zone 3 but subsequently bends to correlate with

the poor conductor Zone 5a.


- 28 -

In several other instances no VLF anomalies were recorded over

definite bedrock conductors. One particular example is seen between

lines 140 and 210, over Zone 9. The EM conductors are strong and

shallow and should yield a recognizable (total field) VLF response.

A second similar example can be seen between lines 130 and 180 over

Zones 2, 4 and 5.

While an increase in overburden thickness may have in places sup

pressed conductor detection by VLF, this reasoning does not cover

all the failures of VLF to detect such conductors. This failure

serves to highlight the qualitative nature of airborne VLF-EM

surveys. In conjunction with the lack of discrimination between

poor and good conductors, this uncertainty emphasizes that airborne

VLF-EM at best provides information supplementary to standard AEM

surveys.


- 29 -

8.0 CONCLUSIONS

The detailed helicopter electromagnetic-magnetic-VLF survey flown by

Aerodat over property held by Minerex Resources Ltd. in Abbotsford Town

ship successfully attained the desired objectives in that:

1. Detailed characteristics of the magnetic features were resolved, with

two bands of northwest-striking iron formation clearly delineated,

2. Twenty distinct conductive zones were detected, most of which re

flect bedrock conductors within the greenstone belt;

3. Six conductors (5, 6, 9, 11, 18a and 19) have directly coincident

magnetic anomalies and are consequently inferred to be massive sul

phides or sulphide iron formation. In addition, anomaly C on line 80

could reflect (magnetic) sulphides locally within a graphitic hori

zon.

4. The remaining bedrock conductive zones lack directly coincident mag

netic anomalies and are hence likely to be graphitic horizons. How

ever, as indicated by prior drilling, some of these conductors adja

cent to very strongly magnetic iron formations could be narrow

pyrrhotite horizons.

5. In view of the proximity and possible correlative aspects of gold

deposits at Joutel and Golden Pond, both graphitic and sulphidic

conductors represent favourable targets for gold mineralization.

6. Non-conductive magnetic iron formations may also be regarded as

indicating a general environment favourable for gold mineralization,

if the Hemlo or Golden Pond model of mineralization is appropriate.

l l i l i i i i i i i i i i i i i i i

- 30 -

However, while the geophysical results are in themselves favourable, many

of the conductors have been delineated and drilled in prior exploration

campaigns, without encouraging results, thus imposing a more restrained

evaluation of the overall favourability of these targets.


- 31 -

9.0 RECOMMENDATIONS

Based on present knowledge, at least 6 zones (3, 11, 13, 14, 19 and 20)

constitute potential drill targets. Of these, 3 zones (3, 11 and 19) are

considered the more favourable.

In view of the fairly intensive prior exploration (including 15 drill

holes on or close to the present property), and the very minor base metal

and gold mineralization encountered in this drilling, it is recommended

that a modest program to define selected conductors on the ground and to

review and compare all prior data in detail with the geophysical inter

pretation should be undertaken before any drilling is carried out. Field

checking of collar locations of known drill holes as well as searching

for any unrecorded drilling on the ground in the vicinity of the conduc

tors is also recommended.

This review should enable assignment of conductors to one of four cate

gories;

i) definite conductors previously drilled without any encouragement,

ii) definite conductors previously drilled with minor encouragement,

iii) new, undrilled definite conductors (Zones 3, 11, 13, 14, 19 and

20?),

iv) weak but untested anomalies (Zones 12 6 17?).

Further exploration would be proposed for categories ii , iii and iv as

follows:

category (il) additional drill holes to test favourable targets along

strike,

category (iii) ground horizontal loop EM and magnetic surveys on limited

cut-line grids to confirm the locations of indicated con

ductors, followed by drill testing;

- 32 -

category iv) ground HLEM and magnetic surveys on limited cut-line grids

to confirm the presence of a valid bedrock conductors,

with follow-up drilling contingent on the targets deline

ated.

The budget for field-checking, ground geophysical delineation and compi

lation is estimated at $15,000.

The drill program, contingent on the preceding, is tentatively estimated

at 1,000 m in 6 holes at a cost of $85,000 inclusive of assaying and

supervision.

Respectfully submitted,

l l l l l l l l l Toronto, Ontario 'J. Roth, M.A.

January, 1985 MPH Consulting Limited

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CERTIFICATE

I, Jeremy Roth of Toronto, Ontario hereby certify that;

1. I hold a Bachelor of Arts degree in Mathematics from Harvard College,

Cambridge, Mass., and a Master of Arts degree in Geophysics from

Harvard University, Cambridge, Mass.

2. I have practiced my profession in exploration geophysics continuously

since graduation.

3. I have based conclusions contained in this report on my personal

experience in geophysical exploration, techniques and knowledge of

geophysical interpretation techniques.

4. I hold no interest, directly or indirectly, in this property other

than professional fees, nor do I expect to receive any interest in

the property or in Minerex Limited or any of its subsidiary

companies.

Toronto, Ontario January, 1985

l l REFERENCES

l Siriunas, J., 1984, Reconnaissance Exploration Report on the Abbotsford

Township Properties for Minerex Resources Limited.

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APPENDIX A

l l APPENDIX A

l The following is a list of claims held by Minerex Limited in Abbotsford

Township:

lRecording Claim

Date Number

November 14, 1983 755050 - 755060 inclusive

October 24, 1984 833314 - 833338 inclusive

" October 18, 1983 754901 - 754925 inclusive

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APPENDIX B

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List of EM Anomalies

l (932 Hz Coaxial Coils)

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FLIGHT

ANOMALY LIST

FREQUENCY 932 LINE ANOMALY CATEGORY INPHASE QUAD.

PAGE

CONDUCTOR BIRDCTP DEPTH HEIGHT

MHOS MTRS MTRS

1i11111111111

illlll111illlll

lllllllliii1

10101010101010101010101010

212121212121212121212121212121

303030303030303030303030

ABCDEFGHJKMN0

ABCriEFGHJKMN0PQ

AB

CDEFGHJKMN

0000005200000

000000300007130

042100112000

0,20.55.53.9

-10.11 .8 -

47.35.5

--0. 5-2.10.20.91 .9

3.41 .11,60.81 .95.4

25.13.40,6

-0.40.5

23.11,7

14.01.1

0,74.32.02.60.61 ,23.95.3

12.12.02.32,9

9.714.421.318.913.813.529.98.66.17.31.74.56.4

10.511 .38,63.7

18.316.723.47.84.31 .95.33,52,015.35,8

3.72,21.64.53.33.87.2

12.517.210.010.810.2

0.00.00.50.30.00,0

15.82.00,00.00.00.10,3

0.50,00. 10.10.00.77.70.90.00.00.0

84,41 .75.00,1

0.09.23 . 41 .20,00,21 .31,13,30,20,20,4

0010006

2000

251211

900

19015

14802

1959li3

349622712231746105

35282729282930313234303435

313538323133343333333235303339

453737363733353634333434

40 l ,2 6,3 0,1 42

Estimated depth rosy be unreliable because the stronger pert of the conductor may be dperer or to cine side of the flisiht line* or because of a shallow dip or overburden effects,

FLIGHT LINE

11111illl1l

1liliiiii1lll

ilil1ll1l

1illllll1

4040404040404040404040

50505050505050505050505050

606060606060606060

707070707070707070

Estimated

CONDUCTOR FREQUENCY 932 CTP DEPTH

ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS

BCnEFGHJKMN

ABCnEFGHJKMN0

ABCDEFGHJ

ABCnEFGHJ

derthof the conductoliner or b e c a "j

00210002100

0001400251000

000650151

004005S60

m s y ber m B y bese of s

2.61 .6

12*65.11.50.02.02.01.51.11 .0

1.00.71.32.6

11.32.0

-0,83,4

61 .212,93,21.70,8

2.80,6

-0,857,920,7-2,22.6

31,12.5

0,01 .3

17.00.9

-1 .015.917,328,22.5

10,74.510.78.25.33.93.71 .71.71,72,9

3.13.02.44.86,5 14,99,44,3

0.30.43,21.90.20.00,93,11.70.90.2

0.20. 10.71 , 11 .10,60,02,2

29,4 24,427,910.911 .66.0

7,04,48,6

1 .90,40,10,0

0,70,00.0

20,9 34,89,3 13.63.9

- 14,9 13,2

1 ,04, 1

10,9 12,20.97.5 18.4 17.4 47.8

unreliable because thedeeper or t

shallow dipo one side

9.00.01 .59.91.9

0.00.31 ,00,30,06.36.12.80.4

1192

15120

3B686449ID

1920422824220

3830200

9104

160

381241

02018400

2221174

strongerof

or o v e r b u r d p nthe fieffect

BIRD HEIGHT MTRS

3336373736302830324146

41363432363432303134363437

404031333533303234

353533342833333239

par tiuht5 ,

ANOMALY LIST

PAGE

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FLIGHT

l l

l l l l l l l l l l

l ll l l l l l l

l l l l l l l l l

l l l ll lll

l l

LINE ANOHALY

7070

80808080808080808080

909090909090909090

100100100100100100100100100

110110110110110110110110

120120

KM

ABCDEFt)HJK

ABCEiEFGHJ

ABCDEFGHJ

ABCDEFGH

AB

CATEGORY

00

003A330041

0330AAA20

00A3A1530

3513A500

00

FREQUENCY INPHASE '

0,80,5

1,40.1

13.618,39, A5.9

-0,30,512.63,1

0.915,38,3

-0,413,610, 114.37,53,4

1.02,1

28.417,218,44.0

15,114,00,0

14,917,32.010.219.453.43,41 ,6

0,21 ,9

932 00 AD,

A, 24,4

8,95,815.09,76,73.70,81,57,05,6

3,613.46.93,18,46, D9,1

11,58.4

10.611 .317,510,111 ,56,05,5

12,15.1

15,27.13.69,713,024,212,312,9

3,64,2

CONDUCTOR BIRD GTP DEPTH HEIGHT

MHOS MTRS MTRS

0.00.0

0.10.04.9

14.67.77.70.00,1

12,11.2

0.17.05,90,010,78,610,52,40,8

0.00,1

13,85.7

11,71 ,8

22,76,90,0

5,620,2

1 .05,310.925,30,40,0

0,00,7

08

00

122231440

452423

1915280

1923181112

009

10212828180

152131.1914310

529

3731

3434333029293.1353435

35323.1.283637363534

363734312931313132

2933363333333433

2731

l

Estimated depth may be unreliable because the stronger P ft r t. of the conductor may bo deeper or to o ri e side of the flight line* or because of 3 shallow dip or overburden effects.

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ANOMALY LIST

FLIGHT LINE ANOMALY CATEGORYFREQUENCY 932 INPHASF QUAD.

PAGE

CONDUCTOR BIRD CTP DEPTH HEIGHT

MHOS MTRB MTRB

11111111

1111111111

11111111111

11111111111

120120120120120120120120

130130130130130130130130130130

140140140140140140140140140140140

150150150150150150150150150150150

CDEFGHJK

ABCDL"

FGHJK

ABCDEFGHJKM

ABCDLFGHJKM

00520420

0240200100

01101031243

22003310000

0.62.7

37.77.71 .4

40.98.61.3

0.811.928.7

1 ,97,25,12.14.81 .91 .0

0.35.86.63,95,5

-3.3-

22.96,47,4

21,713,1

7,18,53,53,2

14.314.45.42 , 52.71 .71 ,5

4.612,418,99,16.2

32, 115,63.8

4.015,319,65,3

12.013,08.68,47,07,3

10,212.413.611 .312.010,923,012.410.614.313,4

10,813,49.47.4

16. 113.29.88,07,96.76.2

0.00.219.93.50,1

11 ,42,00,3

0,03,7

12.10,42,10,90,21 ,60.30.0

0,01 ,31 ,50.71 .20.06.71 .62.6

11 .65.3

2.42,40,70,84,86,41 ,60,40,50,20,2

609

23148

1227

16.127

16926

19130

097

163059

13H12

131010131011112

1076

3335313028272030

32313436363733313136

2833332339353433353435

3433333534373641343638

160 0.6 8,3 0,0 0 35

Estimated depth maa be unreliable becsusc? the stronsjer part of t hi e conductor may bo deeper or to one F. i d f? of the f l i ri h l line? or because of 3 s h B11 o w dip or overburden pf f e r t *-,

ANOMALY LIST

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FLIGHT

111111111111

1111111111111

1111illllllll

llll

LINE ANOMALY

160160160160160160160160160160160160

170170170170170170170170170170170170170

180180180180180180180180180180180180180

190190190190

BCDEFGHJKMN0

ABC[iEFGHJKMN0

AncDEFGHJKMN0

ABCD

CATEGORY

000302321233

0111330002000

0030001430010

0003

FREQUENCY 932 INPHASE QUAD,

0,31 .01 .1

16.32.18.3

16.28.33,89.0

15.613.8

2,54,85.34.511.29,53.43,82.07.41 .31 .30,8

0,42,113,23.34,46.69.8

27.313.02,02,04.81 .8

2.93,30,4

14.3

7.38.09,7

17.59.513,913.414,17.2

11 .414.611 .3

10.110,013.07,88,59.19,3

12,76.79,55,44.34,5

8.28.216.59.0

20.923,621 .624.912.27, 18,311,38,2

12,611.78.3

17.5


MHOS MTRS MTRS

0.00.00,05,40.22.27,72,21,33.46.47,4

0.31 .21 .01 ,67,65.10.70.50,33.10,10,20,0

0,00,34, 10,70,30,71,68,16,00.30.21 .00.2

0.30,40.04,3

010

1409

137

18121010

p116

1 2151000274

234

07

10130046

11B563

270

11

3131312837333435343 /j3640

353433404144434044444.13040

343:53233293029323736343536

31293031

Estimated depth mey be unreliable because the stronger pp-rt of the conductor may be deeper or to one side of the flight line f or beosusR of s shallow dip or overburden effpcts.

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ANOMALY LIST

PAGE

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FLIGHT

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LINE ANOMALY

190190190190190190190190190

200200200200200200200200200

210210210210210210210

220220220220220220220220220

230230230230230230230

EFGHJKMN0

ABCDEFGHJ

ABCDEFG

ABCDEFGHJ

AKCDEFG

CATEGORY

211001100

00020idU.

1

:l0

00l0002

000021210

0412010

FREQUENCY 932 INPHASE QUAD.

16.510,310.30.0

-7.9

2.13.22.10.7

2.11 .63.26.6

-3.09.47.94.43.2

3.84.08.13.00.61 ,A7.4

2.60.00.73.0 "

14,08.19,05.7

-0.5

1.219,16,0

15.41.44.50.4

23.821 .825.226.214,83,25,58,76,1

6.810. 17,07.3

18.817.316.710.57.7

11.715,216.617.42,96,48.2

5,83,96.48.7

20,414,916,310,62,5

4,714,511,722,77.9

10,14.4


HMDS HTRS MTRS

3.71 ,81 .40,00.01 ,31 .30.20.0

0.40. 10,93.60,02,11 .61 ,00,8

0.60.41 .60,20,00,13.8

0,80.00.00,63,41,92,41 ,60.0

0.29.21 , 53,50,11 ,10.0

5S400

392940

100

21310316

16

8490

202

22

2400

11585

110

1310765

100

312927283233303536

353529263335363731

30282833344034

302934323432353531

35363631313435

Estimated depth mey be unreliable because thi? stronger peri- of the conductor m s y be deeppr or to one sidt1 of the? flight line* or becsuse of s shallow dip or overburden effects.

ANOMALY LIST

PAGE

FLIGHT

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LINE ANOMALY

230

240240240240240240240240240

250250

, 250250250250250250

260260260260260260260260260260

270270270270270270270270

H

ABCDEFGHJ

AECDEFGH

ABCDr:FGHJK

ABCHEFGH

CATEGORY

0

000000120

12000000

0000030100

00140001

FREQUENCY INPHASE

0,9

0,40,30,51,12,04,16,38.61 ,9"

2,48,73,41 .81 ,61,41,41 .3

0,60,51.40,13,7

11 ,32,34.00.6

-2,5

2,32,12,9

34,30,10,32,24,6

932 QUAD,

4.2

6.02.43.13.94,512.012,813,84,4

3.711,68,7

10,04, 14,13,64.0

7,57,06.25.69.4

13.45,47.07,03.6

8,88,54,3

21 ,97,75,79,5

10,7


MHOS MTRS MTRS

0, 1

0,00.00,00,20,70,71,52,40,6

1 .43,10,70,10,50.30.40,3

0.00.00.10,00,B4,10,71 ,50.00,0

0,30,21 .6

14,10,00,00,21 .0

10

01516232969

1025

3611

\'j

320232520

0070

105

121400

32

3040006

30

373-133313033333333

3236403030333636

40363535344142403633

3737353639404036

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flidht liner or because of s shallow dip or overburden effects*

l l l l l l l l l l l l l l

Ontario

Ministry of Natural Resources

GEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL TECHNICAL DATA STATEMENT

FUc.

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survey(s) Airborne Magnetometer f VLF Township or Area Abbotsford—-———————Claim Hnlder(g) Minerex Resources Ltd.————

1500-1176 West Georgia StreetSurvey P-nmpanyAerodat Limited

Author of Report J. Roth, MPH Consulting Limited——^——— Address of Anthnr2406-120 Adelaide Street West, Toronto Covering Dates of Survey 14/11/84 to 14/01/85——————

(linecutting to office)

Total Miles of Line Cut. 58 Mi. Flown

SPECIAL PROVISIONS CREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.ENTER 20 days for each additional survey using same grid.

Geophysical—Electromagnetic.—Magnetometer——Radiometric———Other——————

DAYS per claim

Geological.Geochemical.

AIRBORNE CREDITS (Special provision credit! do not apply to airborne lurveyi)

Magnptnmfter ?7 F.Wrrnmagnfftir Rariinmptrir

DATE: t A f

(enter dayi per claim)

SIGNATURE.eport or Agent

Res. Geol.. . Qualifications ^^A l '

Previous Surveys File No. Type Date Claim Holder

MINING CLAIMS TRAVERSED List numerically

(prefix) (number)

SEE ATTACHED LIST

l l

TOTAL CLAIMS 61

837 IBJ79)

MINING CLAIMS TRAVERSED Liit numerically

I MININGT3LAIMS TRAVERSED List numerically

MINING CLAIMS TRAVERSED Liit numerically -.

(prefix) (number)(prefix) (number)

LL 833319

LL 754901

754902

754903

754923

754924

833321

833322

754904

754905

754925

755050

833323

833324

754906

754907

755051

755052833326

833327755053

755054

754908

754909 833328

833329755055

755056

754910

754911

754912

754913

755057

755058

754914

754915

755059

755060

8.3331.4

833315

833335

833336

7.54918

754919

8333.16

833317

833337

833338

OTAL CLAIMS TOTAL CLAIMS TOTAL CLAIMS

l

l

l l l l l l l l

l l l l l lkl

r

SELF POTENTIAL

Instrument^———— Range.Survey Method.

Corrections made.

RADIOMETRIC

Instrument———Values measured.Energy windows (levels). Height of instrument -— Size of detector ————Overburden ——————

.Background Count.

(type, depth — include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.)

Type of survey—————————————————————————Instrument ———-—-.———-———————^——————Accuracy.Parameters measured.

Additional information (for understanding results).

AIRBORNE SURVEYSType of survey(s) Magnetometer, VLF, EM————————————————————————————Instrument(s) ____Mag; G-803; VLF; Herz 1A; EM; Geonics 932 Hz. 4510 Hz

(specify for each type of survey) Arnirary Mag 1.0 nT; VLF! ±1.07.; EM; ±0.1

(specify for each type of survey)

Aircraft used. Sensor;

A-Star 350DMag: 45m; VLF: 30m; EM: 30m

Navigation and flight path recovery mpthnH MRS III radar navigation

Aircraft altitude. 60mMiles flown over total area 58

.Line Sparing 1/8 mi (200m)

.Over claims nnly 27_____

Report of Work(Geophysical, Geologica 1 Geochemical and Expen*

f 32E04NW8101 2.7934 CASE

Airborne Magnetometer, VLF, EM

900

Abbotsford Twp.

ng claims traversed it form, attach a list,

calculated in the :ion may be entered Days Cr." columns, rees below.

Claim Holder(t)

Rocnab Investments Ltd.Prospector's Licence No.

T1813Survey Dates (linacuttlng to office)Survey Company

Aerodat LimitedTotal Miles of line Cut

58 mil. flownName and Address of Author (of Geo-Technical report)

J. Roth, MPH Consulting Limited. 2406-120 Adelaide St. W.. Toronto. Ontario M5H 1T1Special Provisions Credits RequestedInstructions

For first survey:

Enter 40 days. (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Days per Claim

Man DaysInstructions

Complete reverse side and enter total (s) here

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Days per Claim

Airborne Credits

Note: Special provisions credits do not apply to Airborne Surveys.

Electromagnetic

Magnetometer

Radiometric

Days per Claim

53

27

Expenditures (excludes power stripping)Type of Work Performed

Performed on Claim(s)

Calculation of Expenditure Days Credits

Total Expenditures

S -4- 15

Total Days Credits

=

Instructions Total Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected in columns at right.

Report CompletedDate of Report -April 3/85

Recorded Holder or Agent (Signature)

Certification Verifying Repfca'ofWWork

Mining Claims Traversed (List in numerical sequence)

Total number of mining claims covered by this report of work. ;

61For Office Use Only . -l -

I hereby certify that l have a personal and intimate knowledge of the facts set forth in the Report of Work annex or witnessed same during and/or after its completion and the annexed report is true.

eto, having performed the work

Name and Postal Address of Person Certifying

J.M. Siriunas - 2406-120 Adelaide Street West

Toronto, Ontario M5H 1T1 Date Certified

April 3. 1985Certified by (Signature)

Mining Claims Traversed (List in nurriencai sequence)Mining Claim

Prefix

LL

: .1-*.* *' *' .. ~'. ,J, :-f it;/".*

.^•tKy-stir^"v-ru-?*:,.*I*ITW ' v:'-:f"-*r-i•WAi'-^tL^*

S^

'-••x^'-'?

•' ~—r~r f-~* .i* ... ~A

#mqggfc •&&P&'8S•JXi*4V6*

*^H••((•VT*is2

s^•^t.-?^.&5.3S-•"..•;: ...- -

til*^'*ft *tiv., -.- ;.i":-.-^:.:•3f ; -A..;-W.-V'S'.'. •y; /.*tt- ^ -.

* . - * '','~ --'c ;'.

*-^

Number

75A901

754902

754903

754904

754905

.754906

754907

' 754908

754909

754910

754911

'754912

754913

754914

754915

754916

754917

75491 H

754919

754920 .

' 754921

754922

. 754923

Expend. Days O.

Mining CI'iTiFVefix

LL

-K'^"V ;I*-'-r '- * ' *

l w '

*"'. '

t *- . ^ .

- /l' •••.

*. - .

' i-

e 1

.--,':-" .: '.' " :'-

- /': .

''i '- - . '-'.''.'•. ".

. ' Jf-:r'- . V.-^*1-.'-..'*itj*

Number

754924

754925

. 755050

755051

"755052

755053

755054

755055

755056

755057

755058

755059 "

7ssnfin833314

833315

833316

833317

833318

833319

833320

833321

1 833322

.833323

Expend. Days Cr.

-

Mining Claims Traversed (List in numerical sequence)Mining Claim

Prefix Number

LL

.^'iV- •^•i-yr'f-.,*.'- X-*^ ———r

-. . .' ' .V - 1

-. ; 'V ~. ^^X'

//"r-. M : - :

•'-'.^ . -U '

;v •-^---~

l-\y. - ;

s.

1. '

833324

833325

833326

833327

833328

833329

833330

833331

833332

833333

833334

833335

833336

833337

833338

Expend. Dayi C'.

Mining ClaimPrefix Number

~* r.--'..~

••a'- V; ''r r

. fc V^i w J

*s"v-

5n;'jV ;..V-T^ "*

.r*^"". :*t\ - -

v^vfv-

' .'.: - / ;, ,** . - . s

-..v '- V .Vi -., ;Sfc*S&t--•&V&jnr---s*r

.r'.'-i-":-TV'.'- .';^- ^f.- ' '.-r

1

Expend. OBVS Cr.

Total number of mining claimt covered by this report of work.

Mining Lands Section

Control Sheet

File No

TYPE OF SURVEY \/ GEOPHYSICAL

GEOLOGICAL

GEOCHEMICAL

EXPENDITURE

MINING LANDS COMMENTS:

Signature "of Assessor

Date

1985 04 04 File: 2.7934

Mining Recorder Ministry of Natural Resources 4 Government Road East Kirkland Lake, Ontario P2N 1A2

Dear Sir:

Me received reports and maps on March 27* 1985 foran Airborne Geophysical (Magnetometer and Electromagnetic)Survey submitted on Mining Claims L 754901, et al,1n the Township of Abbotsford.

This material will be examined and assessed anda statement of assessment work credits will be Issued.

We do not have a copy of the report of work which 1s normally filed with your office prior to the submission of this technical data. Please forward a copy as soon as possible.

Yours sincerely*

S.E. YundtDirectorLand Management Branch

Whitney Block, Room 6643Queen's ParkToronto, OntarioM7A 1W3Phone:(416)965-4888

A. Barr:mc

cc Mlnerex Resources Limited Suite 15001176 West Georgia Street Vancouver, B.C. V6C 4A2

cc: J. Rothc/o M.P.H. Consulting LtdSuite 2406120 Adelaide Street WestToronto, OntarioM5H 1T1

MPH Consulting Limited 120 Adelaide St. W.Suite 2406Toronto, Canada M5H 1T1(416) 365-0930Telex 06-219626

March 26, 1985

Mr. G. KoleszarMining RecorderOntario Ministry of Natural Resourcesk Government Road EastKirkland Lake, OntarioP2N 1A2

Dear George:

Please accept the enclosed Report of Work Form on behalf of Minerex

Resources Limited with respect to work carried out on their claims

in Abbotsford Township.

Two copies of the pertinent technical reports have been forwarded to

the Land Administration Branch in Toronto.

Yours very truly,

MPH CONSULTING LIMITED

J.M. Siriunas, P.Eng.

JMS/dj

Encl.

RECEIVEDWAR Z 7 1985

MINING LANDS SECTION

cc: Land Administration Branch

+

+

+

32E04NW0101 2.7934 CASE /

490 IO'

LEGEND

250 gammas,

50 gammas.

10 gammas.


TOTAL FIELD MAGNETIC MAPWITH EM ANOMALIES

ABBOTSFORD LAKEONTARIO - 7

SCALE IXI5,OOOKilometre

I/2 I/2 Mile

VAERODAT LIMITED

DATE' November, I984

N.T.S. No: 32 E

MAP

J 8 445

200

+

32E04NW0181 a.7934 CASE

490 10l

INTERPRETATION :VLF

Probable bedrock conductors

Probable overburden conductors

LEGEND


VLF-EM TOTAL FIELD CONTOURSNAA (Maine) 24.0kHz.

ABBOTSFORD LAKEONTARIO

SCALE 1/15,000 o Kilometre

1/2 1/2 Mile

T AERODAT LIMITED

DATE : November, 1984

N.T.S. NO; 32E

MAP No-

J 8 445

o

15

4-

+

32E04NW0I01 2.7934 CASE

230

anomaly -referencecode

-V-

7 — modelled conductance in mhos

Interpreted bedrock conductor axis

Possible bedrock conductor axis

VLF-EM conductor axis

Horizontal control.......... .based on MRS UT

Average bird height ............... 3O metres

Line spacing...................... 1/8 mile

EM RESPONSE

Conductivity thickness in mhos

C

©

(D

O

f )•"*.S

— 15-30

— 8-15

— 4- B

— 2-4

— 1-2

— O- l

AERODAT HEM SYSTEM RESPONSE VERTICAL HALF-PLANE

100 IN-PHASE (ppm)

490 IO'

M PH CONSULTING LIMITED

AIRBORNE ELECTROMAGNETIC SURVEY INTERPRETATION MAP


n -ft 'J If-S f i i.^

(s*

SCALE 1/15,000 O Kilometre

1/2 1/2 Mile

T AERODAT LIMITED

DATE' November, 1984

N.T. S. No 32 E

MAP NO'

J 8 445

4-

+

32E84NW8101 2.7934 CASE 220

p.p.m. 30 i

20In-phase

Quadrature

p.p.m120 q

In-phase

Quadrature

Black-Coaxial, 4510 Hz. Red-Coplanar, 4l37Hz.


AIRBORNE ELECTROMAGNETIC SURVEYPROFILES

4137 Hz CO-PLANAR and 4510 Hz CO-AXIALABBOTSFORD LAKE

ONTARIO

SCALE 1/15,000 O Kilometre

1/2 1/2 Mile

VAERODAT LIMITED


N.T. S. No 32 E

MAP

7 J8445

/

+

32E04NWai01 2.7934 CASE

* Vi x

8O0 00'

490 10

p-p.m30-

20^to^Q;

livphase

Quadrature


AIRBORNE ELECTROMAGNETIC SURVEY PROFILES -932 Hz (coaxial)


SCALE 1/15,000Kilometre

1/2 1/2 Mile

VAERODAT LIMITED


N.T.S. No: 32 E

MAP

J 8445

240

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