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An Application of GIS Based Weights of Evidence for Gold Prospecting in the Northwest of Heilongjiang Province

LIU Shi-xiang，XUE Lin-fu，QIE Rui-qing，ZHANG Xu-dong，MENG Qing-long   

  1. College of Earth Sciences, Jilin University, Changchun 130061, China
  • Received:2007-01-19 Revised:1900-01-01 Online:2007-09-26 Published:2007-09-26
  • Contact: LIU Shi-xiang

Abstract: Based on the analysis of metallogenetic characteristics of the gold deposits in the northwest area of Heilongjiang Province, the gold prospecting model is built. Various geological anomalous information of the area is analyzed. Eleven evidence layers, relating to mineralization, such as strata, structures, magmatites, remote sensing, geophysical and geochemical anomalies, are extracted. The weight evidence method is applied to simulate the mine evaluation of the study area. Based on the posteriori probabilities, three-grade prospective subareas have been classified and five first-grade metallogenetic targets have been outlined. It provides a way of selecting target area in the process of looking for mineral resources.

Key words: Northwest of Heilongjiang Province, GIS, weights of evidence, gold prospecting

CLC Number: 

  • P618.51
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