Precambrian Geology of the Coldwell Alkalic Complex

48 Pages·2008·10.95 MB·English

ISBN 0-7778-1812-4
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Ministry of
Northern Development
and Mines
Ontario
Ontario Geological Survey
Open File Report 5868
Precambrian Geology of the
Coldwell Alkalic Complex
1993

Ministry of
Northern Development
and Mines
Ontario
ONTARIO GEOLOGICAL SURVEY
Open File Report 5868
Precambrian Geology of the Coldwell Alkalic Complex
By
E.C. Walker, R.H. Sutcliffe, C.S.J. Shaw, G.T. Shore and R.S. Penczak
1993
Parts of this publication may be quoted if credit is given. It is recommended that
reference to this publication be made in the following form:
Walker, E.C, Sutcliffe, R.H., Shaw, C.S.J., Shore, G.T., and Penczak, R.S. 1993. Pre­
cambrian geology of the Coldwell Alkalic Complex; Ontario Geological Survey, Open
File Report 5868, 30p.
© Queen's Printer for Ontario, 1993

Ontario Geological Survey
OPEN FILE REPORT
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construed as statements of government policy.
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Sudbury, Ontario P3E 6B5
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iii

CONTENTS
Location and Access 1
Mineral Exploration 1
Base and Precious Metals 1
Rare Metals 5
Building Stone 5
Industrial Minerals 6
Bedrock Geology 7
General 7
Description of Rock Units 8
Archean Rocks 8
Proterozoic Rocks-Coldwe 11 Alkalic Complex 9
Emplacement of the Coldwell Alkalic Complex 22
Economic Geology 24
Base and Precious Metals 24
Rare Metals 25
Building Stone and Industrial Minerals 27
Acknowledgments 28
References 29
Maps in Back Pocket
Map P.3232 - Precambrian Geology, Port Coldwell Complex,
West Half scale 1:20 000
Map P.3233 - Precambrian Geology, Port Coldwell Complex,
East Half scale 1:20 000
v