PREDICTION OF GOLD METALLOGENIC PROSPECT BASED ON THE NEURAL NETWORK MODEL:A Case Study of the Baimashan-Longshan Area in Hunan Province

The Baimashan-Longshan area is the significant metallogenic zone of gold and antimony in central Hunan Province. Based on the data of 1:200 000 stream sediment survey, in combination with the geological information of stratigraphy, lithology, structure and magmatite in this area, the neural network model is adopted to predict the regional gold metallogenic prospect. The whole area of 19 100 km² is assessed by 4 km² as evaluation unit. Then four metallogenic prospect areas are delineated.