Abstract:

Based on the methodology analysis of integrated model of information prediction and evaluation of mineralization prospect, the comprehensive evaluation model of mineralization prospect of linear weighting method and weighted Minkowski distance method are derived based on the assign a value to two states and factor analysis by improving quantity of information method.  The quantity of information method was expanded into the construction of geological variable, screening, assignment, which is the base for the spatial analysis and modeling of MapGIS served for evaluation of mineralization prospect with quantitative prediction and evaluation. The spatial analysis model of MapGIS for evaluation of mineralization prospect with quantitative prediction and evaluation was constructed based on the existence of variable and assignment by applying the mixed spatial analysis model.Take iron, copper, lead-zinc ore prospect evaluation in the map of Changkeng in Wuyishan metallogenic belt of scale 1∶50000 as example. The model was applied for quantitative prediction and evaluation. 12 metallogenic prospect areas with iron, copper, lead-zinc ore have been delineated, including 3 areas of class A, 3 of class B and 6 of class C.

Key words: quantitative prediction and evaluation, spatial analysis model, geologic models, Wuyishan metallogenic belt