Geomathematical evaluation of copper and zinc potential of the Abitibi area, Ontario and Quebec
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Abstract
A number of geological features and geophysical parameters were coded systematically by superimposing a network of cells over the Abitibi area. A parameter expressing amount of metal per cell is calculated for cells (control cells) known to contain one or more large copper or zinc orebodies. This parameter for known mineralization is related to the coded values of the geological and geophysical measurements inside and outside the control cells; the resulting relationship is extrapolated to all other cells in the area. The result is a set of predicted values which are scaled, summed for larger unit cells and contoured to give a probability index. The metal potential of an area is then equal to the difference between total value as predicted by the probability index and total known value for proven reserves within the area. The predictions are subject to certain limitations in the method of approach and have wide confidence limits which can be calculated.
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