Geomorphic Mapping in Prospecting for Mineral Placer Deposits

The complexity of compiling all-purpose geomorphic maps and the continuing controversy over the construction of optimal legends for such maps suggest the need for a more specialized approach to geomorphic mapping. Separate compilation of general geomorphic, structural-geomorphic and predictive-geomorphic maps is proposed. The content of analytical and synthetic structural maps is discussed. Predictive maps are viewed as a synthesis of the general and structural maps and would take the form of transparent overlays suitable for use with either of the two other maps. The content of a predictive map is discussed with particular reference to prospecting for mineral placer deposits.