GROUP 5, KAMISKOTIA LAKE, ROBB TOWNSHIP, ONTARIO FOR … · GROUP 5, KAMISKOTIA LAKE, ROBB...
Transcript of GROUP 5, KAMISKOTIA LAKE, ROBB TOWNSHIP, ONTARIO FOR … · GROUP 5, KAMISKOTIA LAKE, ROBB...
42A12SEa286 63.1041 ROBB
REPORT OH THE GL^,.———.- __,....
OF
GROUP 5, KAMISKOTIA LAKE,
ROBB TOWNSHIP, ONTARIO
FOR
KIRO EXPLORATIONS LIMITED
Summary
The magnetic survey mapped four dlabaae dykea,
two anomalous magnetic eonea, A and B and three faulta.
Two aeta of conductors were outlined lo the electromagnetic
aurvey. One aet parallels the diabaae dykea and t second
more important aet parallels the Keewatin volcanica.
It la recommended that a attady be Mde of the
geological conditiona at the Kam Kotia Mine with the hope
of placing a more complete evaluation on the results of
the aurvey of the lake area. Following thia, a better
choice could be made in laying out a drilling progrataa*
to teat the anomalies.
REPORT ON THE GEOPHYSICAL SURVEYS
OP
GROUP 5, KAMISKOTIA LAKE,
ROBB TOWNSHIP, ONTARIO
FOR
KIRO EXPLORATIONS LIMITED
1. Introduction
Five claim groups war* acquired in Robb Township,
Ontario by Kiro Explorations Limited. Three of these
groups were covered with magnetic and electromagnetic
surveys during the summer of 1959 while a fourth group
was mapped geologically during the same period. The
survey of the fifth group* comprised mainly of water claims in
Kamiskotia Lake, was left for the winter months*
TT General Geology
The main rocks of the area are a series of
Keewatin-type northwest striking lavaa. Into these rocks
are intruded first Haileyburian gabbros, Algoman granites
and finally two ages of diabase dykes. The younger of
these two series of dykes, the Keweenawan, are the most
predominant in Robb Township and they atrike generally
north - south.
- 2 -
The copper mineralisation at the Kam Kotla Mine
is described as a massive replacement in a sheared and
faulted zone and in part a stockwork type deposit.
Ill Geophysical Surveys
A baseline was laid out parallel to the regional
strike of the Keewatin volcanics. Perpendicular to this
baseline were traverse lines at 200 foot intervale. Along
these lines 100 foot stations were occupied in carrying
out the magnetic and electromagnetic surveys*
Magnetic Survey
The main features of the magnetic survey were
four diabase dykes that strike north - south across the
survey area. These magnetic observations are confirmed
by outcrop evidence. The dykes appear to all be of
Keweenawan age, Judging from their strike and magnetic
character.
Further features shown by the magnetic survey
are two areas of anomalous magnetics. These areas,
labelled Zones A and B, are unexplained by the local
geology.
- 3 -
There are marked indications of the northwest
trend to the volcanics in the area. These indications
are mainly in the southeast and northern portions of the
property*
The magnetic and the electromagnetic surveys
indicate faulting. Three faults are marked in yellow
on the maps.
Electromagnetic Survey
The area was covered with an electromagnetic
survey (these results accompany the magnetic results).
Then additional detail surveying was carried out in order
to better evaluate the conductors. The entire detail
work is shown on a second map together with the crossovers
of the coverage electromagnetic survey. The conductors
are numbered and are described in detail as follows:
Conductor l
This conductor lies within and parallel to
the most easterly dyke. Because of its relationship to
the dyke it is at present of secondary interest*
- 4 -
Conductor 2
The strike of this conductor is questionable
because of the nature of the crossover on line 12W. The
full importance of this conductor will not be assessed
until the geology in the immediate area is better known.
Conductor 3
This conductor has a strike consistent with the
volcanics. There is a break in the conductor on lines
24W and 22W. The eastern portion of the conductor lies
within one of the diabase dykes. Several conductor axes occur to the east of conductor 3 but are at present of
undeterminable importance.
Conductor 4
This conductor is a minor feature striking
parallel to the diabase dykes of the area. The value of
this conductor is unknown.
Conductors 5, 6. l , and 8
These four conductors are short in strike
extent. They all appear to parallel the Keewatin
volcanics.
. 5 -
In addition there are several crossovers of minor
importance. These conductors lack magnetic expression and their significance is dependent on their geological
environment*
Conductors 9 and 10
Conductor 9 was mapped from L66W to L46W. It parallels the diabase dyke to the south and appears to
have greatest dip angles on its western extremity. The
discontinuity or termination of the conductors at L46W
could be related to the interpreted fault.
Conductor 10 is structurally similar to 9 but extends east of the fault and parallels the dyke. The
dip angle readings are most impressive from L42W to L38W.
Both conductors 9 and 10 could be related to
shear zones running parallel to the dyke.
Conductor 11
This conductor parallels the diabase dykes of the area and on the basis of the present information it
is unimpressive.
. 6 -
Conductors 12 and 13
Conductor 12 was located with the coverage
aurvey while conductor 13 ia very likely a relocation
of 12 arising from the detail aurvey. The electromagnetic
character of 13 ia unimpreaaive but ita proximity to the
interpreted fault and magnetic cone A makea thia conductor
intereating.
Conductor 14
Thia minor conductor paralleia the Keewatin
volcanics but at preaent ia unproven.
Conductor 15
Conductor IS ia folded around a email magnetic
feature. Apparent termination and ditplacemant of thia
conductor ia added evidence of the fault shown on the
coverage map.
At present no evaluation ia placed on the other
numerous crossovers in the aurvey area.
IV Conclusions and Recommendationa
The magnetic aurvey has mapped the diabaae
dykes, volcanics and two anomalous magnetic highs.
- 7 -
There is alao evidence of three faults in the survey area.
The electromagnetic aurvey has outlined two
families of conductora. One ia parallel to the diabaae
dykes of the area and this family ia likely shearing
associated with the dykes. The other family of conductors
strikes parallel to the volcanica of the area and it ia
the more interesting aet of conductors.
It ia recommended that a study be made of the
geology of the Ram Kotia Mine area in the hope of placing
a more complete evaluation on the magnetic and electro
magnetic anomalies of group 5, before a drilling programme
ia outlined.
Respectfully submitted,
SULMAC EXPLORATION SERVICES LIMITED
T. R. Gledhill, Chief Geophysicist,
Toronto, Ontario.
April 8, 1960.
KAM KOTIA PORCUPINE
MINES l
GROUP 5
GROUP 2
GODFREY
11 - SAND.GRAVEL
l 4 l -QUARTZ DIABASE
l 1 - GRANITE, PORPHYRY
-GABBRO.HORNBLENDE
- TRANSITION ZONE
-GREENSTONE
Scale \ "-2640'
SUMMARY MAP
KIRO EXPLORATIONS LIMITEDROBB TOWNSHIP
ONTARIOMarch, I960
O
KAMISKOTIA
/•a 3
L E G E N D
MAGNETOMETER READINGS IN GAMMAS
CONTOURS OF MAGNETOMETER READINGS
CLAIM BOUNDARY AND CLAIM POST LOCATION
KIRO
xt\
T6
V
DRILL HOLE LOCATION (PROPOSED)
E.M. TRANSMITTER STATION
PROFILE OF ELECTROMAGNETIC READINGS
N 20 0 DIP ANGLE
CONDUCTOR
POSSIBLE CONDUCTOR
DIABASE DIKE
MAGNETIC ZONE
PLAN OF MAGNETOMETER AND ELECTROMAGNETIC SURVEY
EXPLORATIONSPORCUPINE MINING DIVISION
ROBB TOWNSHIP
ONTARIO
SURVEY BYSCALE l" * 200'
MARCH I960
SULMAC EXPLORATION SERVICES LIMITED
42A12SE0286 63.1841 ROBB 200
r- s
l \ l
KAMISKOTIA
PLAN OF DETAIL - ELECTROMAGNETIC SURVEY
KIRO EXPLORATIONS LIMITEDPORCUPINE MINING DIVISION
ROBB TOWNSHIP
ONTARIO
SURVEY BY
SCALE l" * 200 ARCH I960
SULMAC EXPLORATION SERVICES LIMITED
42A12SE32B6 63.1041 ROBB 210
Nv,./y/? L.r^^^ J
SURVEY
LIMITEDSIGN
jpMARCH I960
DES LIMITEDSCALE |" S 2640'
LOCATION MAP AND SHEET INDEX
T-5
t
S*
7
LEGEND
E.M. TRANSMITTER STATION
PROFILE OF ELECTROMAGNETIC READINGS
20 0 DIP ANGLE
CONDUCTOR (DETAIL)
POSSIBLE CONDUCTOR (DETAIL)
CONDUCTOR (COVERAGE)
POSSIBLE CONDUCTOR (COVERAGE)