a.c.r. (1963) option report on geophysical surveys
TRANSCRIPT
41N08SE0042 RUNNALSISAI RUNNALLS 010
A.C.R. (1963) OPTION
REPORT ON GEOPHYSICAL SURVEYS
CONDUCTORS E-3 AND E-6, TWP. 25. R.XV. ONTARIO
N.T.S. 41-N-8
BY
HAROLD O. SEIGEL
TORONTO. ONTARIO 18th FEBRUARY. 1965.
•*iN08SEee*a RUNNALSIBAI RUNNALLS 010C
TABLE OP CONTENTS
INTRODUCTION . . . . .
GEOLOGY . . . . . . .
DISCUSSION OP RESULTS
CONCLUSIONS AND RECOMMENDATIONS
PAGE NUMBER
One
TWO
Three
Pour
LIST OF ILLUSTRATIONS
DWG. NO. L-2336 LOCATION MAP
DWG. NO. E-4097-1 PARALLEL LINE E.M. SURVEY
DWG. NO. E-4098-1 DETAIL E.M. SURVEY
/DWG. NO. M-4099-1 MAGNETOMETER SURVEY
/DWG. NO. GR-4100-1 GRAVITY SURVEY
SCALE
l" -
l" -
l" -
l" -
200'
200"
200*
200*
••"^- i' 'Vt,~'V4--* - 'i*:-B-^-ui..^ /ft. 'ji'"
A. C. R. (1963) OPTION
REPORT ON GEOPHYSICAL SURVEYS
CONDUCTORS E- 3 AND E-6. TWP. 25. R. XV. ONTARIO
INTRODUCTION
Over the period of July 10th to 26th, 1964, a
geophysical party, under the direction of Mr. H. Beckmann,
carried out electromagnetic, magnetic and gravity surveys
of an area in Township 25, R. XV, Sault Ste. Marie Mining
Division, Ontario. The object of these surveys was to
precisely locate, delimit and investigate two conductors
indicated by an earlier electromagnetic survey and designated
E- 3 and E-6.
The area covered by these surveys includes all or
part of unpatented claims 67112, 67113, 67114, 67115 and
It lies about one mile northwest of Doyle Lake.
Access is by means of charter aircraft from Sault Ste. Marie,
Ontario, a distance of approximately 45 miles due south, to
Doyle Lake. (See location map Dwg. L-2336)
An Electronic Associates E. M. 5 portable vertical
loop unit was employed on the electromagnetic survey with
an operating frequency of about 1000 c. p. s. The transmitter
coil is maintained with its plans vertical and oriented towards
the receiver location. The receiver coil is tilted about a
- Page Two -
a horizontal axis joining it to the transmitter to obtain
the dip of the resultant electromagnetic field. Conductors
are deduced from the presence of appreciable tilt angles of
the electromagnetic field from the horizontal plane.
The survey lines were initially covered by a
reconnaissance parallel line technique, followed by fixed
transmitter locations to improve the conductor definition.
An askania torsion vertical component magnetometer
was employed on the magnetic survey. Appropriate corrections
for diurnal varriations were made by tying back, about once
per hour, to a base station previously occupied.
A World Wide gravimeter was employed on the gravity
survey. Station elevations were measured to a relative
accuracy of about 0.1'. Appropriate corrections were made to
the observed gravity values for instrumental drift and station
elevation.
GEOLOGY
Mapping of the grid area has revealed it to be
underlain largely by acid to intermediate volcanic and minor
sediments, intruded by diabase dykes and granitic bodies of
uncertain extent.
The observed strike direction is approximatelyx.
N 400 W and dips are steep to the northeast, in general.
't.
- Page Three -
DISCUSSION OF RESULTS
The electromagnetic results (Dwg. Nos. E-4097-1
and E-4098-1) are presented on two plans, each on the scale of
l" - 2O0 , and the second shows the detail (fixed transmitter)
tilt angle profiles, on the same scale. The latter shows
the conductors deduced from the electromagnetic data.
Two conductors have been located with certainty
and a third possible conductor as well, all strike about
N 400 W. There is one main conductor 2,000 feet in length
and still open to the southeast. It is of very strong
amplitude. The second definite conductor is only about 400
feet in confirmed length and moderately strong.
The magnetometer survey results are presented on
Dwg. M-4099-1, in profile form, on the profile scale of
l" - 1000 gammas. There is considerable magnetic relief,
rangin from 4600 gammas positive to 5400 gammas negative.
The E-3 - E-6 Conductor System displays direct magnetic
correlation on a number of sections, up to 2200 gammas peak
amplitude.
The gravity and elevation survey results are shown
on Dwg. GR-4100-1, in profile form, on the profile scale of
l" - l milligal. There is no significant positive gravity
expression corresponding to any conductor indication on E-3
or E-6. In fact several sections exhibit a negative gravity
correlation.
. .*Vi'*U:^
- Page Four -
CONCLUSIONS AND RECOMMENDATIONS.
Two conductors have been confirmed which are
undoubtedly caused by graphite and/or very narrow sulphide
zones.
It is recommended that each of these conductors
should be examined by trenching, if possible, or by
drilling if trenching is not feasible, in order to determine
the conductor cause.
follows:-
Suitable exploratory drill holes would be as
(a) Collar on line 12W at 250 feet north.
Orient southwest along the line for
400 feet @ 45O dip.
(b) Collar on line 16W at 225 feet south.
Orient southwest along the line for
300 feet @ 45O dip.
HOSrdfToronto, Ontar io.18th February, 1965,
Respectfully submitted,
f̂ / y(\^LdLG *d**cHarold O. Seigel, Ph.D., P.Eng. Consulting Geophysicist._____
41N08SE0e48 RUNNALS1SAI RUNNALLS
Us* for on* type of survey only
Assessment Werli Bf**hd*wii
1. Type of Survey...........
2. Township or Area ....
3. Mining claim numbers ..B8M 67112j
900
Submit in eVipllc*f*
2.71
I.A. ..1M.5...
4. Number of miles of line cut
* 5. Type of instrument used . .
* 6. Scale constant or sensitivity
* 7. Number of stations established .
8. Summary of days worked ( details on reverse side )
Total technical ( include consultants, draughting etc.
Total line-cutting ( maximum S man days per claim )
Total man-days ( technical plus line-cutting ) .
Assessment days credit per claim .. . . .
142
113*5. .P*Jf!i.
. .22*7. .
(Total man-days multiplied by assessment foctoiBCdivided by total number of claims traversed)
9. Dared. Signed
* Complete only if applicable Complete list of names, addresses and dotes on reverse sia*
'-ffc
Us* for on* typo of survey onlyk
Assessment WoHt Br**lt*Wii
1. Technical
Typo of Work Nome 4 Address Dot** Worked
I M o-. - -- *--— w o--* — — - ^^CT *— * — -*- - -- wji w luiu ^n tc*fe 4mrt* M* upuMotr a* MonBunp 1*57 UUBMDOTV wu B* **uy J*'1'*?*** uUf
Fort Orvdit. Oat.
t B M* AMiatmt J. Vylte* lax Vfo. ABM Qua. July 10*15th iaqlt•. .jiniiVl..MmilllMMIIJI^MMIiH.. -.... W. M. . . W^e^B^*^^...^*"^^^-.-"^**^^^^^- .^^^^•^^•..,*^^^^*).....................BK^^^S^..^^^ii' ̂ ^^'" iiw..^^ ii^ f
Total*
Hours
M
W
96
2sr* ,t^
-...d.™
J*
Consultants
Nome A Address
.,^P.*...?B.*...^R^Swi^*^ftw..
Dotes Worked (specify in field or office)
P. ..O* Boot 158|, liaHtmy^f J^it:
Hours Doys
a
Totals 8
Drooflhtsmon, Typing, others (specify)
Name a\ Address
D. B. Stoa*
^373Jwws*
Type of Work Dotes Worked
Dor Muriitlnfl AuAWt 12th ft lHth/6^
i...Ai!i.*.jAjL.....l*iiailXljL..Oj*!fe*
Totals
Hours
12
^JUL.
Days
1-5
....1*5..-
2. Line-Cuttir•i^H^BHM^
Nome Address Dotes Worked
..Jte..lflZl*..Awt*QBt*........-........... - JVOy.^th..-.flWiXft.lBQl^
J!m.ffla3ju.Mll*,flft*......................™^
,,jdf^ffML..wl^B.,,^WTsJ[fwW ̂ ....^•ft^SJY.... .........................*
Hours Doys
.Jto...JML
......5.......
2
Total*
UM for on* type of survey only SwUit in dvpll
1. Type of Survey ..Hevgoatoaattjr^QravXty.-
^ Township or Areo ,....q^p,....2S......Il,.-15- - ---.--.--.—————.
3. Mining claim numbers SBK 67112* 67H3+.-.. 61U4+-....6711S
4. Number of miles of lite cut
* 5. Type of instrument used ......
* 6. Scale constant or sensitivity ......................................................_................................
* 7. Number of stations established ,. KUsfl. 260^ . .OrJLVity...BS
8. Summary of days worked ( details on reverse side )
Total technical (include consultants, draughting etc.) ——22.?3 * 7 - 135.75
Total line-cutting ~.........._M_.....-_.....,-..-.-_......... , _,™—™--._ nA \
Total man-days ( technical plus line-cutting ) . ............M................................__.
Assessetent days credit per claim ................ ......................-..............................___..m....
9. Doted.
* Complete only if applicable Complete list of names, •oMro**** and 4o**t *n revert* side
•- ; .-X*z. r ft - .
DM for on* type of survey only Ocophyslcal Conductor B 3*6Assess*e*t Work Brsokde**
1. Technicol
Type of Work Nome i Address Dotes Worked
flrftvity 8urv*y R.todcMtnn JUly 10- IS* 64
^2J7 LakitBhor* Rd.B.
Port Credit. On t.* * p t pouMtfefc July JLQ~1S* fr4
Magn*tOMt*r Survey B.BedkMunn July 20-26D. DouMtt July 16-26
Hours
25
.....3A......
.....li.....72
Doys
3,50 i
. _ . _ ....
2.50
...................
2.239.00
Consultants
Nome PI Address Dotes Worked (specify in field or office)
H. O. 8*10*1 79 Martin Ross Av*. T^J. 13* 16165
Totals
Hours Doys
16
16
Droughtsmon, Typing, others (specify)
Nome tt Address *"*yP* o' Work Dotes Worked
D.R f lton* DraughtmMsn Aug/19,,20'64
4373 L*wr*nc* Av*. E,jW*st Hill, On t.
..P..,..Bu.t*pn... r.R..R*.f.l*^.ri|l*yj.QD.t.,... ...,Typiing................,...,......,.)llW.t...2a.^64......................
Totois
Hours
.....8...........
Doys
....1.........
Address Dates Worked Hours Doys
t—
...L.
Totals
FOR.RES.INV.
MO TINTO CANADIAN EXPLORATION UD
A.&R. 1963 OPTION.-ONTARIO.
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TWP. 25 R. 15DISTRICT OF
ALGOMA
SAULT STE. MARIE MINING DIVISION
SCALE: 1-INCH-4O CHAINS
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SSM 67113
SSM 67112
SSM 67174
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Profile- Scale l" s 1000 b Base value -Ob
A.C.R. OPTION (I963)-TWP25 , RXV - ONT
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MAGNETOMETER SURVEY
One Inch *200 Feet
\ RUNNALLS- 00'
SSM 67115
SSM 67114
8
210
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