rpt on ground mag sur performed on the neal cl … · controlled with an air photo mozaic on the...

32
32DiaSEe099 2.9084 HARRIOTT 010 REPORT ON GROUND MAGNETOMETER SURVEY PERFORMED ON THE MEAL CLAIMS MARRIOTT TOWNSHIP LARDER LAKE MINING DIVISION FOR DICKENSON MINES LIMITED AND NEW CINCH URANIUM LTD. BY R.W. RISTO, M.Se. H.E. NEAL l ASSOCIATES LTD. TORONTO - CANADA APRIL 1986

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Page 1: RPT ON GROUND MAG SUR PERFORMED ON THE NEAL CL … · controlled with an air photo mozaic on the eastern portion of the property. The only other recorded work was some trenching on

32DiaSEe099 2.9084 HARRIOTT 010

REPORT ON

GROUND MAGNETOMETER SURVEY

PERFORMED ON THE

MEAL CLAIMS

MARRIOTT TOWNSHIP

LARDER LAKE MINING DIVISION

FOR

DICKENSON MINES LIMITED

AND

NEW CINCH URANIUM LTD.

BY

R.W. RISTO, M.Se.H.E. NEAL l ASSOCIATES LTD.

TORONTO - CANADAAPRIL 1986

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32D12SEM99 2.9084 HARRIOTT 010C

TABLE OF Co,.,,.,,,o Page

1.0 SUMMARY l

2.0 INTRODUCTION 2

3.0 THE PROPERTY 2

4.0 LOCATION AND ACCESS 3

5.0 PREVIOUS WORK 6

6.0 GENERAL GEOLOGY 6

7.0 MAGNETIC SURVEY 8

7.1 Instruments and Sensitivity 87.2 The Survey 97.3 Results 9

8.0 CONCLUSIONS 11

9,0 REFERENCES 13

CERTIFICATE 14

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1.0 SUMMARY

The magnetometer survey in Marriott Township on the Neal claims, a 93

claim block, was conducted by H.E. Neal A Associates Ltd. personnel during

parts of September, October 1985 and February 1986. It was conducted on

behalf of Dickenson Mines Limited and New Cinch Uranium Mines Ltd. The

survey was conducted along lines cut at 100 m intervals.

The survey showed that the property was underlain by an alternating series

of rock units of relatively low and higher magnetic susceptibility. These

units are interpreted to be magnesium-rich and iron-rich tholeiitic

basalts. These units were also shown to be offset by numerous north-east

and north-west trending faults. An abrupt contact between a distinct

magnetic low and more magnetic rocks north of Highway 101, on the north

margin of the property may be the Destor Porcupine Fault Zone.

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2.0 INTRODUCTION

H.E, Neal S Associates Ltd. were contracted by Dickenson Mines Limited and

New-Cinch Uranium Mines Ltd. to conduct a ground magnetic survey over 93

claims held by Mr. H.E. Neal in Marriott Township.

Explorico Inc. was subcontracted by H.E. Neal A Associates Ltd. to cut and

chain 153.9 km of lines which included 9.7 km of base and tie line. Cross

lines were cut every 100 m and stations were established every 25 m along

the lines. A magnetic survey was conducted over this grid during the

period September 1985 to February 1986. The field crew was based at Bar

Pavilion du Lac Hebecourt for the fall portion of the survey and at a

drill camp in Holloway Township on Highway 101 for the winter period.

The results of the work are contained in this report and are to be applied

for assessment credit for all 93 claims.

3.0 THE PROPERTY

The property consists of 93 contiguous claims in Marriott Township. The

claims are held by H.E. Neal, 124 Roxborough Drive, Toronto, Ontario.

The claims are listed below:

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L738422 - L738436 15

L738447 - L738460 14

L738472 - L738481 10

L738482 - L738486 5

1.738497 - L738513 17

L821329 - L821330 2

1.842261 - L842274 14

L842281 - L842296 Jj6

93

4 - 0 LOCATION AND ACCESS

The 93 claims are located in Marriott Township, District of Cochrane, in

the Larder Lake Mining Division (Fig. 1).

The east side of the claim block is common with the Ontario-Quebec border

(Fig. 2a).

Highway 101 crosses the claim block.

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/9

9

t

O NT APIQUE.

TIMMINS MARRIOTT

THUNDER BAYw i

KIRKLAND LAKE

\

TORONTO

HAMILTON V:'.

KEY MAP100 ?00 300

M

H E NEAL S ASSOCIATES LTD.

Figure 1

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•j -o ?oW*-*-.* * A-A- t i 4- -1 -. ~- - — — — --J

KEY MAPONTARIO l QUEBEC

KIMKL4N LAM

SHEET INDEX

J""

Figure 2a

Figure 2b

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5.0 PREVIOUS WORK

1984: H.E. Neal and Associates Ltd. conducted a geological survey

controlled with an air photo mozaic on the eastern portion of the

property.

The only other recorded work was some trenching on what is now claim

L738480 by E. Chorzepa in 1973. No results were reported. No known

drilling or surveys have been conducted over this claim apart from the

mapping by the Ontario Geological Survey.

6.U GENERAL GEOLOGY

Marriott Township is within the Abitibi Sub-Province of the Superior

Structural Province of the Canadian Shield. All rocks are Archean in age.

The northern portion of the township within which the property is situated

is underlain by the Kinojevis Group. It is composed of a sequence of

magnesium-rich and iron-rich tholeiitic basalts containing rare lenses of

rhyolite and interflow sediment (Jensen, 1978). A table of formations

from Jensen (1978) is shown on the following page. The rocks face and dip

south at 70 degrees or steeper. They generally strike east-north-east to

due east. There is no major folding mapped in the township. The rocks in

the township are cut by a series of strike-slip faults striking N65 0 E to

N70 C E. Jensen (1978) describes these faults as shear zones less than 20 m

wide with some containing minor quartz, chlorite and sulphide mineraliza

tion.

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TAHI.H: UK LITHOLOGIC UNITS FOR STOUGHTON AND MARRIOTT TOWNSHIPS

PHANEROZOICCENOZOIC

QUATERNARYPU ISTOCENfc A.'M 11 HI ChNI

^jrul qr.K -i, tidy, alluvium, an(i p'jyt

UNCONtORMITY

PRECAMBRIANIAHLY PRECAMBRIAN (AMCHCAM)

F ErLSlC INTRUSIVE HOCKS\ t Id'ipar porphyry, hoinbli'iu.it 1 fi-Ulspm porphyry, lamp

iN TR US! Vt CONTACT

VOLCANIC AND SEDIMENTARY HOCKS SEUIMF Ml AMY HOCKS

C"('M, iron tornidtion, arculite, ,,nd iraphite

F;Hv:)l.l r H. AMI.' DACIIIO VOLCANIC ROCKSr'liissi/u flow Ijii'ici.i, (Lid-breccia, crystal Uift. cherty tuff, cherty tuff dikes

BASALTIC AND ANJL: SI! 1C VOLCANIC ROCKS CAI C Al.KAL 1C BASALTS AND ANDESITf:S

Massive lluws, pillowjil flows, (ijllow breccia, flow-breccia, massive gabbroic to dinbasic-loxiunnl Mows, tuff breccia, tuff, hyaloclastite and palagonite tuff, variolitic flows, dUiyjJaloidal flows, poiphyntic feldspar flows, dikes

TH'H.F.m 1C BASALTS lin" Midi Hiisalt

Massive flows, pillowi'd flows, pilU)w brecci.i, flow-bwcia. gabbroic and diabasic i'ixtiirc(f flows, tuff btoccia. hyaloclastite and palagoniti; tuff, variolitic and porphyntic fflHiipnr Hows

Mdi|ni.'Siufn RK h [ins,litMjssive flows, pillowed flows, pillow-bruccia, flow-breccia, gabbroic and diabasic

texturod flow,, tuff-tiii'cciii, hyaloclastite rind palagonite tuff, variolitic andporphyritic feldspar Hows

KOMA1IITIC VOLCANIC ROCKS Ultramafic Komatiite

Massivi! flows, pillowed flows, pillow breccia, flow breccia, gabbroic and diabasic texture! flows, lufl i)M.-tcKi, vaiiolitic flows

li,iS.iltic KomatiiteN'jisivii flows, pillowed flows, pillow breccia, flow breccia, gabbroic and diabasic

textureif flows, tuf (breccia, variolit'C flows.

After L.S. Jensen 1978.

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Jensen's (1978) map shows three of these fault zones crossing the

property. Some of them may be related to the Destor-Porcupine Fault Zone.

7.0 MAGNETIC SURVEY

7.l Instruments and Sensitivity

The survey was conducted using a Scintrex MP-2 proton precession

magnetometer as a mobile unit and a Geometrics G-816 magnetometer and

Canadian Mining Geophysics MR-10 recorder-computer for a base station.

The magnetometers have an accuracy of one gamma. The proton precession

magnetometer measures the earth's total magnetic field in gammas.

A magnetic survey determines variations in the magnetite and to lesser

extent pyrrhotite concentrations in the underlying rock. Since different

lithologies inherently contain different amounts of these magnetic

minerals the magnetic method can thus map lithic units.

Faults can be defined by abrupt changes in pattern. Additionally, along

fault zones the rocks can be more highly fractured or sheared. Fracturing

leads to increased porosity and fluid flow and thus chemical alteration.

Altered rocks tend to be less magnetic than fresher rocks producing

relative magnetic lows.

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7.2 The Survey

The magnetic survey was conducted by Kathy David during September and

October 1985 and completed by Mike Bradshaw in January and February 1986.

Readings were taken at 25 metre intervals along all lines. The cross

lines were at 100 m intervals.

Due to diurnal and random fluctuations in the earth's magnetic field it is

necessary to make corrections to each magnetic reading on the grid. A

fixed auto-reading base station taking readings every 30 to 60 seconds was

used to do this. These readings were then applied to the data collected

by the mobile mag and the corrections made.

7.3 Results

The magnetic survey revealed that the rocks underlying the claim block

consisted of an alternating series of lithic units of relatively lower and

higher magnetic susceptibility that have been offset by numerous north

east and north-west trending faults.

On the western half of the property the sequence of units strikes east-

north-east; on the eastern portion the units swing slightly to strike due

east.

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- 10 -

The rock units of different magnetic susceptibility alternate on two

scales. In broad terms, map sheets l and 3 are underlain on their north

margin by a weakly magnetic unit. This unit is overlain to the south by a

more strongly magnetic unit approximately 350 to 500 m wide (apparent

width). This broad unit is further subdivided into narrower units of

relatively high and low magnetic susceptibility, each of which is 20 to 50

m wide. It is followed to the south by another broad weakly magnetic unit

approximately 600 m wide. This unit is followed by another major series

of narrow strongly and weakly magnetic units. Each of these sub-units 1s

10 to 50 m wide. This unit extends onto map sheets 2, 4 and 5. On map

sheet 5 this unit is followed by a relatively weak magnetic unit 200 m

wide. On the eastern portion of the property this unit has been offset to

the north and follows the boundary between map sheets l and 2. This unit

on map sheets 2, 4 and 5 is followed to the south by narrow units of

higher magnetic susceptibility alternating with similar units of

relatively low susceptibility.

The strongly magnetic units are probably iron-rich tholeiitic basalts

while the majority of units of relatively weak magnetic susceptibility are

magnesium-rich basalt. Some of the lows are probably interflow sediments.

The prospector's pit on claim L738480 containing laminated chert and minor

disseminated sulphides is on the margin of one of the most prominent

magnetic lows which crosses the entire property. Some of the stratigraphy

parallel lows could also be faults or shear zones but their orientation

makes them difficult to distinguish from similarly oriented rock units.

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- 11 -

All the rock units are offset by numerous northwesterly and northeasterly

trending faults. The amount of apparent displacement is highly variable.

Two of the northeasterly trending faults on the eastern portion of the

property (sheets l and 2) show apparent displacements of 200 to 300 m.

The sharp change in magnetic intensity north of Highway 101 (sheets l and

3) on the north edge of the property may mark the main branch of the

Destor-Porcupine Fault Zone.

8.O CONCLUSIONS

The magnetometer survey was useful in determining the geological structure

and rock-types underlying the claim group. The rocks were shown to trend

from east-north-east to due east and dip steeply south.

The survey showed that a prospector's pit containing laminated chert and

minor sulfides is contained within a characteristic rock unit that can be

traced across the entire property.

The magnetics showed that all units have been offset by numerous faults.

The magnetics suggest the presence of the southern contact of the Destor-

Porcupine Fault zone in the north part of the claim group.

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- 12 -

A detailed geological survey is recommended for this claim group to

further evaluate the structures outlined by the magnetic survey 1n terms

of their potential for gold mineralization.

Richard W. Risto, M.Se.

H.E. Neal X Associates Ltd.

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- 13 -

9.0 REFERENCES

Jensen, L.S. (1978): Geology of Stoughton and Marriott Townships,

District of Cochrane; Ontario Geological Survey

Report 173, 72 p. Accompanied by Map 2390, scale

1:31,680 and one chart.

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CERTIFICATE

I, Richard W. Risto of 22 Northridge Road, Toronto, Ontario do hereby certify that:

1. I am a graduate geologist residing at the above address.

2. I am a graduate of Brock University in Geology and Queen's University in Mineral Exploration and have worked for H.E. Neal i Associates Ltd. in that capacity for seven years.

3. l have no interest directly or indirectly nor do I expect to have any interest in the properties held by H.E. Neal.

4. My report is based on personal examination of the property and supervision of the surveys being conducted on the property.

Dated this 1st day of May, 1986 at Toronto, Ontario.

R. Risto, M.Se.GeologistH.E. Neal & Associates Ltd.

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33012568099 S.9084 HARRIOTT 900

Mining Lands Section

Control Sheet

File No

OF SURVEY GEOPHYSICAL

GEOLOGICAL

GEOCHEMICAL

EXPENDITURE

MINING LANDS COMMENTS:

Signature of Assessor

Date

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Ontario.

Report of WorkNatl/dl , ,- - i r- i - iResources *GeoPhys.cal, Geological.

Geochemical and Expenditures)

Mining Act

Instructions: — Please type or print.— If number of mining claims traversed

exceeds space on this form, attach a list.Note: — Only days credits calculated in the

"Expenditures" section may be enteredin the "Expend. Days Cr." columns.

- Do not use shaded areas below.Type of Surveyis)

M AG Me.roTownship or Area

Claim Holder(s) Prospector's Licence No.

A 'T 4- 56 8Address

1 A? f W 1X4-Survey Company

H. Z-, ,

A^ouJ-cs LM.Name and Address of Author (of Geo-Technical report) (^.j^, t—

t? K g: , T"^

Date of Survey' 7 , 0*i

y l Mo.1

H

Total Miles of line Cut

/5"3- 1 i l Ud.

Credits Requested per Each Claim in Columns at rightSpecial Provisions

For first survey:

Enter 40 days, (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Man Days

•Cotnple-te reverse side

\ -j^\ ; ' ^ ' " ...t ' 1 f\ m' J jl-

^ J MAR 10 198/O i O d fv.

AirDorne Creaiis

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

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical

a r-r^ a j f ii

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inetometer

iometric

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Days perClaim

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Days per Claim

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Mining Claims Traversed (List in numerical sequence)

Expenditures (excludes power stripping) SEType of Work Performed

Performed on Claim(s)

Calculation of Expenditure Days Credits

Total ExpendituresTotal

Days Credits

S

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

Mining ClaimPrefix

U

,,ON

Number——T .-7 f"} f "- -V

13 rt T* X.

73 f? ^37.? 8 t M~~1 ~* c? ^71-*7 ,y /^ j /C. v

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*nhpTotal number of mining claims covered by this report of work.

Date , Recorded Holder or Agent (Signature)

Certification Verifying Report of Workl hereby certify that l have a personal and intimate knowledge of the facts set ferth in the Report of Work annexed nefeto, having performed the work or witnessed same during and/or after its completion and the annexed report is true.

Name and Postal Address of Person Certifying

i'i-y/y. ./-/6XA.^:~/'/-

G. Urea 5 ".Date Certified Certified by (Signature)

1362 (81 9)

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Ontario

Ministry of Natural ResourcesGEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL

TECHNICAL DATA STATEMENT

File.

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

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

OFFICE USE ONLY

Township or Area M f^fLR. l O1

Claim HolHer(s) H- E- ^

"T" TD^/VJ&V* if \ 1rAL 1

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Survey Company J-\-p- 1V)6AL c*" A SAOC/ J ATSSi LTk.

Author of Report. R. fc^

Address of Author 3 Q ! "~ S

Covering Dates of Survey ^rLiC

Total Miles of Line Tut |*^"2

SPECIAL PROVISIONSCREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.

ENTER 20 days for each additional survey using same grid.

t"V 'f) ,

•^ GLUe-pW Qr.2~'^ l 0! iQfiC -Ip A^lAW jffi4

(linecdtting to office) '

). 0I \^~~.

DAYS Geophysical per

P.lertromagnetir

RadioTietric. Othi-r

r,fn]r,a\ra]

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AIRBORNE CREDITS (Special provision credits do not apply to airborne surveys)

Magnetometer Rlertromagnetic RaHiometrir(enter days per claim)

nATF.f AU^i 1/8^. SIGNATURE- tt. . /U^TOAuthor of Report or Agent

^ /yRes. Geol. Qualifications J hlA ^C/JU'

Previous SurveysFile No. Type Date Claim Holder

.

x MINING CLAIMS TRAVERSED

List numerically

l ITLQ y 3L 2-*(prefix) (number)

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GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS - If more than one survey, specify data for each type of survey

Number of Stations. Station interval —— Profile scale.^—^—

.Number of Readings o *

.Line spacing___LQjQ—tm

Contour interval. ^Instrument St^'l rt T&E * M P~

r Accuracy — Scale constant 1 nA/vVL/rM/3 , — An QCfu/ef* ' ^ Diurnal correction me2 Base Station check-in

Base Station location

fji InstrumenteS C^il configuration miZU Cnil separation n

0 tZ Method:

a Parameters measured

. . |. ?thod AlA4t* r'^"3l*A ei •'06mfp-'interval (hours) A- \3CXA, ^-TCCTIU^

and value feAR P/SUIl^OrO Y^,^

^ ^ '

\

\

\

D Fixed transmitter D Shoot back

(tpedfy V.L.F. station)

^ Qyvyv^a-*! -4-

L /^PUu^^/VKj tDOAw ^/y^faTt @Pt iir'^i^. ^Zj D s*\ LAP. Ht.log^f)\* INif' f* ex. j.

J

D In line D Parallel line

GRAVITYSrale ronstant

(torrert ion s made

Base station value and location

Elevation accuracy ————————

\\\\

X

Instrument

INDUCED POLARIZATION

Method CD Time Domain \Parameters — On time ——————————— -^ ——————— r-

;H — Off tim*- \^ — Delay time ———————————— V ——————

J— 0 \

Electrode array ————————— — ———————————————Electrode spacing ——————————————————————————— Tvne of electrode . —————————— — — ——————————

LJ Frequency Domain FrequencyRange

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rrrrrrrrrrrrrrrrrrr rrrrrrrr-

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SELF POTENTIALInstrument \

Survey Methnrl , , \

\nnrrertinns marie \

\

Range

RADIOMETRICInstrument \

Values measurer! \

Energy winrlnws (levels) \

Height nf instrument \

Sire nf rletertnr

Background OfMint

Overhnrrlen(type, depth - include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.) Type of survey——————————V——————————— Instrument —————————————J^————————— Accuracy________________A————————— Parameters measured_________

\Additional information (for understanding results)

AIRBORNE SURVEYSType of survey(s)——————— \Instrument(s) —————————— \

Accuracy.\ (specify for each type of lurvey)

(specify for each type of survey) \Aircraft used. ISensor altitude. \Navigation and flight path recovery method Y

\Aircraft altitude______________________________Line Sparing Miles flown over total area__________________________Over claims only.

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GEOCHEMICAL SURVEY - PROCEDURE RECORD

l

Numbers of claims from which samples taken.

\____________________

Total Number of Samples. Type of SamplejL

\ (Nature of Material)

Average Sample Weight-—————^ Method of CollectionV

\Soil Horizon Sampled Horizon Development Sample Depth Terrain

\

l\

Drainage Development——————.————— Estimated Range of Overburden Thickness.

IMPISAMPLE PREPARATION(Includes dry\ng, screening, crushing, aihing)

Mesh size of fraction used for analysis.

\

es expressed in:ANALYTICAL METHODS

per cent p. p. m. p. p. b.

Q O D

Ni, Co, Ag, Mo, As,-(circle)

Field Analysis (.Extraction Method. Analytical Method- Reagents Use

Field Laboratory\AnalysisNo. -———Extraction Methc Analytical Methoc Reagents Used.

Commercial Laboratory ' Name of Laboratory.. Extraction Method-— Analytical Method— Reagents Used ___

.tests)

.tests)

.tests)

General.

\

General.

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Nay 6, 1986 File: 2.9084

Mining RecorderMinistry of Northern Development and Nines4 Government Road EastKirkland Lake, OntarioP2N 1A2

Dear Madam:

tie received reports and maps on Nay l, 1986 for a Geophysical (Nagnetometer) Survey submitted under Special Provisions (credit for Performance and Coverage) on Mining Claims L 738422. et al, In Marriott Township. i

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

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

Yours sincerely,

J.C. Smith, Supervisor Mining Lands Section

Whitney Block, 6th Floor Queen's Park Toronto, Ontario M7A 1W3

Illephonet (416) 965*4888

AB/mccc: H.E. Neal A Associates Ltd

Suite 301SS Queen Street EastToronto, OntarioN5C 1R6

Page 26: RPT ON GROUND MAG SUR PERFORMED ON THE NEAL CL … · controlled with an air photo mozaic on the eastern portion of the property. The only other recorded work was some trenching on

H.E. NEAL b ASSOCIATES LTD.Mineral Consultants

Sie. 606. 55 Queen Street East, Toronto. Canada M5C 1K6 Telephone: (416) 068-0166

May l, 1986

Ms. S.K. YundtDirectorLand Management BranchWhitney Block, Room 6643Queen's ParkToronto, OntarioM7A 1W3

Dear Ms. Yundt,

Re: H.E. Neal Claims - Marriott Twp.

Enclosed please find the following property reports submitted for assessment

work credits by H.E. Neal S Associates Ltd. on behalf of H.E. Neal.

2 Copies - Report on Ground Magnetometer SurveyPerformed on the Neal Claims in Marriott Twp., Larder Lake Mining Division.

5 Ground Magnetometer Maps, Scale 1:2,500 accompanies each report.

Respectfully Submitted,

Richard W. Risto M.Se. H.E. Neal 6 Associates Ltd.

' 'i.'' O ; "i?rr-

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Page 31: RPT ON GROUND MAG SUR PERFORMED ON THE NEAL CL … · controlled with an air photo mozaic on the eastern portion of the property. The only other recorded work was some trenching on

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32D12SEM99 3.9084 HARRIOTT

MARRIOTT PROJECT

DICKENSON MINES LIMITED -

NEW CINCH URANIUM LTD

JOINT VENTURE

TOTAL FIELD

GROUND MAGNETOMETER SURVEY

H E NEAL PROPERTY

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H.E, NEAL St ASSOCIATES LTDTORONTO CANADA

DRAWN BY R.W.R.

APPROVED BY H.E.N. SHEET 4DATE

Page 32: RPT ON GROUND MAG SUR PERFORMED ON THE NEAL CL … · controlled with an air photo mozaic on the eastern portion of the property. The only other recorded work was some trenching on

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