Metallogeny of the Canadian Cordillera
A. SUTHERLAND BROWN, Dept. of Mines and Petroleum Resources, Victoria, B.C. R. J. CATHRO, Archer, Cathro and Associates Ltd., Vancouver, B.C. A. PANTELEYEV, Department of Geology, University of British Columbia,
Vancouver, B.C. C. S. NEY, Kennco Explorations, (Western) Ltd., Vancouver, B.C.
The general distribution of metal deposits in the Canadian Cordillera can be related to its tectonic evolution. The Canadian Cordillera is naturally divisible into five longitudinal tectonic belts within which rocks are broadly similar in type, age and history. From west to east they are the Insular, Coast Crystalline, Intermontane, Omineca and Eastern Marginal belts. Seven classes of metal deposits in the Canadian Cordillera are defined and their characteristics described. These classes are skarn, porphyry, massive sulphide, stratiform, magmatic, copper in basic lavas, and vein deposits. Maps showing the distribution of md al and metal-group concentrations serve to illustrate the relations in space and time between mineralization and geologic evolution.
Canadian Cordillera, Canadian Cordillera, Intermontane Belt, molybdenum, porphyry, skarn, copper, Deposits, metals, Rock, Rocks, Tectonics