on geophysical surveys for conwest exploration ltd. … › mndmfiles › afri › data › ... ·...

18
fr- VVM-- - •*f'.- S26I5NEM12 52GI5NEM23 QUEST LAKE 010 RECEIVED JAN 2 5.1972 PROJECTS SECTION r REPORT ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. STURGEON LAKE AREA, UNT. L j

Upload: others

Post on 23-Jun-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

fr-VVM-- -

•*f'.-

S26I5NEM12 52GI5NEM23 QUEST LAKE010

RECEIVED

JAN 2 5.1972PROJECTS SECTION

rREPORT

ON GEOPHYSICAL SURVEYS

FORCONWEST EXPLORATION LTD. STURGEON LAKE AREA, UNT.

L j

Page 2: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

PROSPECTING GEOPHYSICS LTD.

REPORT

ON

GEOPHYSICAL SURVEYS

CONWE3T EXPLORATION LTD.

STURGEON LAKE AREA. ONT.

INTRODUCTION

Oeophysical surveys, consisting of electromagnetic

and magnetometer, have been completed on the property of

Conwest Exploration near Princess Lake in the Sturgeon

Lake area of Ontario.

The following report and accompanying maps describe

the results of the surveys and give an interpretation of

same.

PROPERTY AND LOCATION

Only a portion of the claim group was surveyed, as

shown on the accompanying maps. The claims covered

included all or part of the following, registered with the

Ontario Department of Mines:

: .ft vie... . ; . :p V^:v'';:-' :

Page 3: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

- 2 - PROSPECTING GEOPHYSICS LTD.

PA 227445 - PA 227446 inclusive

PA 261245 - PA 261264 inclusive

Tha property is situated at Prinoaaa Lake, east of

Sturgeon Lake, and about 60 miles by air from the basa at

Ignace. It is located 16 miles east of highway 599 and

about 13 miles northeast of the Mattagami discovery.

GEOLOGY

The geology of the area is described in Geological

Report No. 24 with accompanying map 2044 and also Pre

liminary Map No. P 353, all published by the Department

of Mines of Ontario*

From this data, the property surveyed appeara to be

largely underlain by meta-sediments which are known to

include conglomerate, arkose, greywacke and derived

schists. The extreme northwest corner of the surveyed area

is shown to be underlain by syenitic rocks that have intru

ded the surrounding meta-sediments and roeta-volcanics. Tha

general trend of the rooks is northeast.

SURVEY METHODS AND INSTRUMENT DATA

The survey was carried out using a network of picket

Page 4: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

- 3 - PROSPECTING GEOPHYMC* LTD.

lines cut in a northwest direction at 400 foot intervals,

as shown on the accompanying maps. Stations were at 100

foot Intervals along the lines.

The electromagnetic survey was carried out using

the Ronka Mark 32 horisontal loop equipment with a 300 foot

coil interval. In the horisontal loop type of survey

bofih the in-phase and out-of-phase components of the

secondary field are measured, whose special characteristics

make possible a fairly accurate evaluation of the conduc

tivity. A conductor caused by sulphide mineralization

wixl produce a curve going from positive readings through

zero to negative and back again to positive. Both the

in-phase and out-of-phase readings show the same general

curve. The ratio between the in-phase and out-of-phase

readings over a conductor is an indication of the con

ductivity of the body. A good conductor would cause a

greater deviation of the in-phase component than the out-

of-phase component. The opposite is true of a poor .

conductor.

The magnetic readings were taken over the same net

work of lines with a Sharpe MF-1 Fluxgate in.^etometer

Page 5: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

- k - PROSPECTING GEOPHYSICS LTD.

measuring the variations of the vertical component of the

earth's magnetic field. Readings were plotted as gammas

on a separate map after correction for diurnal variation.

RESULTS OF THE GEOPHYSICAL SURVEYS AND INTERPRETATION

The magnetometer survey outlined a number of

irregular magnetic anomalies that trend in a northeast

direction. The magnetic anomalies are all located in the

northeast portion of the property and appear to be located

along a northwest trending structure. The anomalies hare

values in the thousands of gammas, as compared to a back

ground of 500 to 600 gammas. The magnetic anomalies in

all probability represent more basic rocks with a higher

magnetite content than the balance of the property.

The electromagnetic survey outlined several conduc

tive cones trending in a northeast direction, all within

the magnetic anomalies. The conductive tones are quite

strong and from the intensity of the readings there ia very

little overburden covering the conductors. The major

conductors are located in the eoutheast corner of the area

surveyed and these appear to be en echelon with two of

these going off the area surveyed. The dip appears to be

Page 6: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

- 5 - PROSPECTING GEOPHYSICS LTD.

near vertical and one of the zones has a width of approxi

mately 50 feet. Since the conductors are within the magnetic

anomalies, it is difficult to determine if there is a

magnetic high coincident with the conductor.

In the northwest corner of the area, a similar con

ductive zone within a strong magnetic anomaly was outlined.

On line 40E, the profile has been interpreted as two con

ductive sones rather than one fairly wide tone.

CONCLUSIONS AND RECOMMENDATIONS

The geophysical surveys outlined several strong con

ductive zones trending northeast within magnetic anomalies.

There is a good probability that sulphides are at least a

contributing cause for the conductivity. The intensity of

the readings suggests that the overburden is light and it

is recommended that geological examination is made prior to

investigation by diamond drilling. There is a possibility

that the cause can be determined by trenching, but, if not,

diamond drilling is recommended for the major sones.

Respectfully submitted,

PROSPECTING GEOPHYSICS LTD.

Montreal, Que. April 13, 1971 H.J. Her,

Page 7: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

cClaim No.

PA 227445

PA 227446

PA 261245

PA 261246

PA 261247

PA 261243

PA 261249

PA 261250

PA 261251

PA 261252

PA 261253

PA 261254

PA 261255

PA 261256

PA 261257

PA 061253

PA 261259

PA 261260

PA 261261

PA 261262

PA 26126.3

PA 261264

r ^y T ^•••^yyyv^1 — iSCHEDULB (S

No* of Day a

•' . . . , . 20 , .20

20. , . . '. . , v. t . . i : ' ' ' V . ) : ' i'. : '

20

20

20

20

20

- ' 20 ' '

: 20

20

20 ' -.

' 20

,. . . .-..- : ;- - - - 20v : v : -...v.:-.: -

,-. ...•;. : - -.- : - 20 -•-. ' ' :: -

', C ;-i'.-\ ". - - I- - :-;-..-. i.- . 20 --I" : i" -: '.. '

' : •..•,- ' .•:- ' -.. . .-. - -: - - 20.: v . \ : - :.- /.: ,t *

. ' . f.

-,- /.'. •• l ' - .. - , 20 : -- .' - - p'"'.'

•-.. -..-. M,..-, .-; ,- --. -V 20 .-. ,.^-V20 '

t20

20 Total: 440 i

Page 8: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

V"* 1 ..*,

, f" S C H E

Claim No.

PA 227445. f

PA 227446 *- .

PA 261245 *

PA 261246 -

PA 261247 *

PA 261248 '

PA 261249 -

PA 261250 -

PA 261251 -

PA 261252-

PA 261253*

PA 261254 .

PA 261255 -

PA 261256 -

PA 261257 '

PA 361258 '

PA 261259 ,

PA 261260*

PA 261261 .

PA 261262 '

PA 261263 -

1 PA 261264 .

*

D U L B

No* of Days

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40 1Total: 880 daya

Page 9: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

J -

SPECIAL PROV1S

ASSESSMENT WORK bb...,

SZGlCNEMtZ 52015NEM2X QUEST LAKE 900

jiAMES AND ADDRESSES

Ihief Line Cutter or Contractor Norman McBride. Nptre Dame due Nord. Que.

party Chief __________Savard,______Val d f Qr f Que.-—1—^.^^^.^ H. J. Bergmann. 3518 Vendome Ave., Montreal Que.

:OVER1NC DATES

.ine Cutting March 12, 1971 to March 20, 1971

Meld and Office March 16. 1971 to April 13. 1971

I INSTRUMENT DATA

Scale Constant or Sensitivity ————-—-or provide copy of instrument data (tom Manufacturer's brochure

Total Number of Stations Within Claim Group —————————— fitl Number of Miles of Line cut Within Claim Group miles

ASSESSMENT WORK CREDITS REQUESTED

Geological Survey

Geophysical Survey20

. Days per Claim

Days per Claim

MINING CLAIMS TRAVERSED

PA 227U5 to PAL ?27U6 inclusivePA 261245 to PA 26126^ "

TOTAL

DATE Apr il^CL. 1Q71. SIGNED

22

A nepirate form l* repaired for rack type of aarvey

•ft.; .'j.

Page 10: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

r SPECIAL PROVISION

ASSESSMENT WORK DETAILS

1AMES AND ADDRESSES

Chief Line Cutter or Contractor Norman McBride. Nptre Dame du Nord, Quebec. Party Chief ___________Savard._______Val d'Or. Que.—————————

Consultant ^———.H T J t

OVER1NG DATES

ine Cutting ——— March 12. 1071 fen March ?n 1O71

ield and Office March 16^ 1971 to April 13. 1971

INSTRUMENT DATA

4ake, Model and Type Ronka Mark TV. Horizontal Loop " 30Q* Coil Interval

kale Constant or Sensitivity -——————" ^-———.-—^————— , ———.^.^——————-—- or provide copy of instrument data from Manufacturer's.brochure

Total Number of Stations Within Claim Group ——--————.——

Number of Miles of Line cut Within Claim Group 20.0 miles

ASSESSMENT.WORK CREDITS REQUESTED

Geological Survey ——.—— Days per Claim

Geophysical Survey ".Q Days per Claim

MINING CLAIMS TRAVERSEDPA 227U5 to PA 227446 inclusive

PA 261245 to PA 261264

TOTAL

c

22

April 20, 1971 SIGNEDHvJ. Bergjnann

A nepirclr form l* repaired for eacK type of BBrvey

•W-S-&

Page 11: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

GEOPHYSICAL -GEOLOGICAL -GEOCHEMICAL TECHNICAL DATA STATEMENT

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

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

File.

i Covcrinf Dates of Survey At A fa * / d - Ctfoi, A /ilU Office)

SFEOAL MtQVISlONS CREDrrS REQUESTED

ENTER 40 dayt (includes Bo-, cutting) for Hrit lurvey.ENTER 20 d*yi foradi additional nirvey IU(R| same grid.

GeophysicalDAYS

per du*

-Radiometric-Othex——Geological.. Geochcreici

AIRBORNE CREPITg Mafnetoraeter Electromagnetic.

(enter dayi per cUto)Radiometric

SIGNATURE

PROJECTS SECTION Res. Geol.,^—-.—^. Qualifications.Previous Surveys

Checked by.t- A H rt"l C l M

MININO OIV.

GEOLOGICAL

Approved by—^ ,//^r lki:i."*w

GEOLOGICAL flRANC^ftV 1 ! ? ^^ ^

l Approved by. .date.

MINING CLAIMS TRAVERSED Lilt numerically

M**********************n***i

V.-

J.G

M^ /' * K '

"- V .' ** i

/.v• ••••••••i

X /v

f x -il fc?. /l.-5

TOl'AL a JMMS. .2/3,-

Page 12: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

cionnrsicAL - GEOLOOICAL - GEOCHEMICALTECHNICAL DATA STATEMENT

F TO IE ATTACHED AB AN APPENDIX TO TECHNICAL REPORT

FACTi SHOWN HERE NEED NOT RE REPEATED IN REPORT TECHNICAL WOtT MUTT CONTAIN INTERPRETATION, CONCLUSIONS ETC.

FQ*

DATE:

PROJECTS SECTION

flTvioui iHTtcyi

Checked by.

GEOLOGICAL BRANCH,

Approved oy—

W,GEOLOGICXL^RANCH

E r - : i v

Approved by. .date.

MINING CLAIMS TRAVERSED . Urt*

Page 13: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

PROJECTS SECTION DEPARTMENT OF MINES AND NORTHERN AFFAIRS - 2.738

TECHNICAL ASSESSMENT WORK CREDITS

Recorder Holder

Township or Area

Conwest.Exploration Company.

Type of Survey and number of Assessment Days Credits per claim

GEOPHYSICAL

Magnetometer...........??.....................days

Electromagnetic........*P.....................days

Radiometric............. ........................days

GEOLOGICAL...........................................days

GEOCHEMICAL........................................days

Man days l l Ground IXJ

Special Provision |X AirborneD

NOTICE OF INTENT TO BE ISSUED

fi Credits have been reduced because of partial coverage of claims.

l l Credits have been reduced because of corrections to work dates and figures of applicant.

NO CREDITS have been allowed for the following mining claims 'as they were not sufficiently covered by the survey:

Mining Claims

Pa. 227445 - 46261245 to 64 inclusive

The Mining Recorder mtv reduce the jt'iivc cred'tt if necftttry in ordtr that tht totilit' - .i.-",'."Y/ taetsmrnr Jtyt ri-cairitti "" '.•c/' c'.""i rfori not "ceftt the mjxmurri ttlo*v*dtt

Page 14: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

TARIO

itry jral

Room W 1617 Parliament Buildings Toronto 182

Dear Sir:

May 12, 1972

Re: Mining Claims Pa. 227445 et al, Quest Lake Area. File 2.738———-————

The Geophysical (Magnetometer and Electromagnetic) assessment work credits as shown on the attached list have been approved as of the date above. Please inform the recorded holder andso indicate on your records.

Yours very truly,

OJ/ow

end.

Fred W. MatthewsSupervisor

Projects Section

cc: Mr. H.J* Bergmann, P. Eng. 3518 Vendooe Avenue Montreal, Quebec

cc: Conwest Exploration Company Ltd* 10th floor, 85 Richmond Street W. Toronto l, Ontario Attnt S.L. Goodwin

cc: Resident Geologist ., Kenora, Ontario

A16l965— 6918 \\-i 2.738

Mr. W. A. Buchan Mining Recorder Court Rouse Sioux Lookout, Ontario

: -

Page 15: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

f.'J!

It iV'

"R

Ll^

.-i*..

s L S L

sli-5-

~

l*- M

lg

J l

~—

•- S

j*-__

~ l*

~J

~~

*.~

~m

^f-

" I"" "

' '

-j-——

*—

——

—j

..q._.jt—^i

li. li li, -

_ w]2_ "a^.—

.^,1--—

TiL"- iL-t-,--y"T"s]

E!'-I!

Page 16: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

m o x

m r

o o C7 si m

m

i B-n-o

m o

o o

Page 17: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

P l 261263

P4 261253

R4 2612

N

BOO

LEGEND2^3-8

MEASUREMENT STATIONS ALONG PICKET LINES RELATIVE VALUES OF THE VERTICAL COMPONENTFORCE OF THE EARTH'S MAGNETIC FIELD ( In Gammas)

*MAGNETIC CONTOURS

BASE STATION

ELECTRICAL CONDUCTOR

227452

261248

Area Surveyed

CLAIM GROUP- l INCH ~ 4O CHAINS -

l ^\ .i*

MAGNETOMETER SURVEY

CONWEST EXPLORATION CO. LTDSTURGEON LAKE AREA , ONTARIO

SCALE 4OO 800 12 CO FEET

APR I97I

PROSPECTING GEOPHYSICS LTD.

52Q15NE0ei8 52G15NE8023 QUEST LAKE

Page 18: ON GEOPHYSICAL SURVEYS FOR CONWEST EXPLORATION LTD. … › mndmfiles › afri › data › ... · 2017-01-17 · Toronto 182 Dear Sir: May 12, 1972 Re: Mining Claims Pa. 227445 et

LEGENDMEASUREMENT STATIONS ALONG PICKET LINES

ELECTROMAGNETIC READINGS -In Phase Component ffc)

ELECTROMAGNETIC READINGS -Outof Phase Component

PROFILE - In Phase Component (Scale l" * Zolfc)

PROFILE-Out of Phase Component (Scale l" B

COIL SEPARATION - 3oo Feet

INSTRUMENT- *ON*A MU.IV

ELECTRICAL CONDUCTOR

Area Surveyed

HORIZONTAL L OOP

ELECTROMAGNETIC SURVEY

CONWEST EXPLORATION CO. LTDSTURGEON LAKE AREA , ONTARIO

CLAIM GROUP- l IMCM 240 CHAINS-

PROSPECTING GEOPHYSICS LTD.

52G15NE00I2 52G15NE0023 QUEST LAKE