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The Application of Fuzzy Logic Method to Gold Deposit Prediction in Qinling-Songpan Area

Xing Xue-wen1, Hu Guang-dao2   

  1. 1.Graduate School, China University of Geosciences,Wuhan 430074，China;2.Faculty of Earth Resources,China University of Geosciences,Wuhan 430074，China
  • Received:2005-06-01 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
  • Contact: Xing Xue-wen

Abstract: Based on introduction of fuzzy logic theory and detailed analysis of gold mineralization law in Qinling-Songpan area, ArcView GIS and its extension modules-Arc SDM were applied to process geological, geochemical and geophysical data, and extract predictive variables. A known gold deposit was used to construct membership function and confirm membership of different variables. The choice of fuzzy operator is based on the relationship between forecasting variables and known gold deposit. The final potential map of gold deposit is generated by combining ore controlling factors using gamma operator. The results show that fuzzy set theory can integrate effectively various spatial data for mineral potential mapping and the final map delineated most favorable potential areas of mineralization for further investigation.

Key words: fuzzy sets, fuzzy logic, gold deposit, mineral potential mapping, Qinling-Songpan area

CLC Number: 

  • P628
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