Mineral Endowment of the Canadian Northwest - A Subjective Probability Assessment
GEORGE S. BARRY, Mineral Economist, Mineral Resources Branch, Dept. of Energy, Mines and Resources, Ottawa, Ontario. ANDREW J. FREYMAN, Consulting Mineral Economist, Toronto, Ontario
Mineral endowment in northern British Columbia and the Yukon Territory was assessed on the basis of geological opinion which was gathered in a quantitative framework of subjective probabilities. The survey area encompassed 364,000 square miles and was divided into 310 cells having dimensions of one degree of longitude by one-half degree of latitude. The response solicited related to tonnage, grade and number of deposits of a particular mineral in each cell. The questionnaire sought an expression of mineral endowment down t<> mineable depth as distinct from economic expectations. Details on the questionnaire and responses are presented in a series of contour maps on individual commodities, which illustrate the collective occurrence picture of the respondents. The approach is largely dependent on the cooperation of an adequate number of geologists familiar with the region being examined. This approach to an assessment of the mineral endowment of a region has a wide range of applicability, from the focusing of exploration effort to aiding government and development bodies in the formulation of regional strategies and the planning, for example, of road, rail and power facilities.
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