关键词: 金属矿产, 资源潜力评价, 证据权, GIS

Abstract: Assessment on potentiality of the poly-metallic mineral resources in Yemaquan Area，Eastern Kunlun was performed，combining weights-of-evidence model with GIS spatial analysis technology.Firstly，based on the analysis of metallogenic geology background，the ore-controlled variables were selected to determine its optimal threshold with the proximity analysis method of weights-of-evidence model.Secondly，the independence hypothesis testing of six evidences was made based on the chi-square tests condition.Finally，a posterior probability map was produced by weights-of-evidence model based on six binary evidential maps.According to the variations of posterior probability and cumulative area，the study area was classified into three target zones respectively (high potential，moderate potential and low potential)，of which high potential areas occupied 3.4% of the total area and contained 13 of 21 (approximately 62%) deposits，and moderate potential areas occupied 6.2% of the total area and contained 5 (approximately 24%) deposits.The total prediction accuracy is approximately 86%，showing it is an effective prediction.

Key words: Metal resources, Resources Potential Assessment, Weights-of-Evidence, GIS