Capreol area - Geology Ontario

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PREFACE CAPREOL AREA, SUDBURY DISTRICT Detailed geological mapping of the Capreol area was undertaken by the Ontario Geological Survey, Ministry of Natural Resources on behalf of the Ministry of Northern Affairs. This mapping comprises part of a larger program of geoscience surveys designed to encourage exploration interest, provide a mineral potential evaluation and planning base and develop an integrated concept which would relate the widespread and varied mineralization environments of the general Sudbury-Cobalt region. Large parts of the north range of the Sudbury Irruptive and much of the Whitewater Group within the Sudbury Basin have never been mapped in detail. The Capreol area survey is the first of a series which it is anticipated will provide consistent data west and south to Cascaden and Trill Townships and which will provide the basis for identifying mineralization controls in the Irruptive, in the footwall rocks and in the Whitewater Group of the Basin. -s E.G. Pyex Director- Ontario Geological Survey II
Page 1 and 2: THESE TERMS GOVERN YOUR USE OF THIS
Page 3: cJOMNR-OGS 1981 Ontario Ministry of
Page 9: TABLE OF CONTENTS Abstract Introduc
Page 13: Table of Contents cont'd - 3 - Mafi
Page 17: Table of Contents cont'd - 5 - Cons
Page 21: List of Figures Figure l Key locati
Page 25: Photo 18 Leucocratic breccia intrud
Page 29: Scslc: 1:1 584 000 or 1 inch to 25
Page 32 and 33: with numerous, small to large, remn
Page 34 and 35: Formation consists of slaty argilli
Page 36 and 37: serves logging and recreational pur
Page 38 and 39: and Capreol flats (Burwasser, 1979)
Page 40 and 41: Hutton and Parkin Townships to the
Page 42 and 43: 12 Nomenclature Various terms for g
Page 44 and 45: ocks collectively form what has tra
Page 46 and 47: 16 The writer was ably assisted in
Page 48 and 49: 18 Early Precambrian interface. The
Page 50 and 51: 20 Mafic to Intermediate Metavolcan
Page 52 and 53: 22 along portions of the footwall c
Page 54 and 55: Quartz-plagioclase-hornDlende gneis
Page 56 and 57:
26 Pyrite is locally present and ca
Page 58 and 59:
28 monzonitic, grancdioritic, quart
Page 60 and 61:
30 Biotite-hornblende quartz diorit
Page 62 and 63:
32 that display subgraphic-like (cu
Page 64 and 65:
A lens-shaped area consisting cf a
Page 66 and 67:
36 unusual and not igneous sensu st
Page 68 and 69:
38 minor opaque mirerals, epidote,
Page 70 and 71:
Gowganda Formation The Gowganda For
Page 72 and 73:
generally as irregularly oriented,
Page 75 and 76:
from giant blocks of Huronian metas
Page 78 and 79:
aphanitic feldspathic material whic
Page 80 and 81:
50 Locally, particularly in the low
Page 82 and 83:
52 Locally, pyroclastic breccias co
Page 84 and 85:
and disolay such features as amygdu
Page 86 and 87:
When stained for potassic minerals,
Page 88 and 89:
58 In thin section it can be seen t
Page 90 and 91:
60 portions where the rocks are mer
Page 92 and 93:
62 concretions up to 0.5 m across (
Page 94 and 95:
The work in this report is restrict
Page 96 and 97:
66 as at the Strathcona and Levack
Page 98 and 99:
68 Leucocratic Breccia Leucocratic
Page 100 and 101:
70 included in the Sublayer Zone, t
Page 102 and 103:
72 quartz, plagioclase and potassiu
Page 104 and 105:
Overlying the leucocratic norite, l
Page 106 and 107:
76 qradational with it. It correspo
Page 108 and 109:
78 veinlets of up to about 1 CB thi
Page 110 and 111:
80 Late Precambrian Mafic Intrusive
Page 112 and 113:
82 Ice Contact Deposits Ice contact
Page 114 and 115:
Basal, affected theAGray and possib
Page 116 and 117:
66 granitic recks* suggests a coin
Page 118 and 119:
68 vertical offset displacement en
Page 120 and 121:
90 writer recognizes that there is
Page 123 and 124:
92 ^ exotic* xenoliths in the leuco
Page 125 and 126:
on submitted assessment work, has t
Page 127 and 128:
96 Pyrite, pyrrhotite, pentlandite,
Page 129 and 130:
98 locally fairly thick. Properties
Page 131 and 132:
100 outlined and later drilling b;
Page 133 and 134:
102 In 1954, Consolidated Orlac nin
Page 135 and 136:
104 " moderately intense anomaly, p
Page 137 and 138:
106 In 1956, Fa11mac Nickel Bines l
Page 139 and 140:
1C8 In 1955, Jcnsmith Mines Limited
Page 141 and 142:
110 zone is about 535 m long, has a
Page 143 and 144:
112 International Nickel Company cf
Page 145 and 146:
UM- New Dominion Nickllel nines Lim
Page 147 and 148:
L. Provincial and J. Provincial cur
Page 149 and 150:
II? underlain by siltstone of the O
Page 151 and 152:
so ~ 1974: The Sudbury Basin, the S
Page 153 and 154:
1935: Life history of th* Sudbury N
Page 155 and 156:
Southern Province cf Ontario, Summa
Page 157 and 158:
~ Geological Survey Preliminary Hap
Page 159 and 160:
— of Geology, Vol. 3ft, pp. 653-6
Page 161:
S30 " 3, p, 57-62, Walker, T.I. 189
Page 164 and 165:
UJ UJ O LU -J UJ UJ Q U O O UJ Q Q.
Page 166 and 167:
0*t Photo 3: Intrusive breccia with
Page 168 and 169:
Photo 7: Green Member pyroclastic b
Page 170 and 171:
Photo 11: Photomicrograph of Green
Page 172 and 173:
Photo 15s Photomicrograph of Black
Page 174 and 175:
Photo 19: Photomicrograph of leucoc
Page 176 and 177:
o ON * d) o 01 M d) o ON rt id 4J d
Page 178 and 179:
Intrusive Contact Huronian Supergro
Page 180 and 181:
o 00 rt Z H CJ en 9 HH fa PS 2 IH D
Page 182 and 183:
Table 4 cont'd Name Property Last Y
Page 184 and 185:
•o o4* o 4) 0) ea M x -P a) o c 0
Page 186 and 187:
Table 6 cont'd lip Claim Con cessio
Page 188 and 189:
46 0 52'30 81 15' Rapid River Loonf
Page 190 and 191:
46 0 45' o W a n o pi t e i Lake Mc
Page 192 and 193:
5am Martin C r. 460 52X 30* o cnoD/
Page 194:
8I 0 15 46 0 45' Watson s r \ 460 3
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Capreol area - Geology Ontario

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