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Metal Mine ›› 2018, Vol. 47 ›› Issue (10): 146-150.

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Geological Characteristics and Three-dimensional Metallogenic Prognosis of Ashele Copper Deposit in Xinjiang

Bai Xuhui   

  1.  Department of Architecture and Civil Engineering,Inner Mongolia Vocational and Technical College of communications,Chifeng 024000,China
  • Online:2018-10-15 Published:2018-11-09

Abstract: In order to clarify the prospecting prospect of Ashele Copper Deposit in Xinjiang,the regional metallogenic geological background,geological characteristics of the mining area and deposit are analyzed in detail.Based on three-dimensional geological prospecting prognosis theory,the three-dimensional geological modeling technique and Surpac software are adopted,three-dimensional numerical model of mineralized areas is established.According to the projection contour maps of plane section (XY),longitudinal section (XZ) and transverse section (YZ) of Cu grade of the block model,the copper mineralization spatial distribution regularities is studied.The results show that the copper mineralization distributed with SSE-NNW direction,the continuity of copper mineralization with high grade is inferior to the continuity of copper mineralization with low grade,the copper mineralization with high grade is distributed with irregular and lenticular shapes;copper mineralization in the mining area is mainly distributed at the elevation of 760~840 m,the copper mineralization with high grade is characterized by gentle slope distribution;copper mineralization of the mining area has the characteristics of extending to the deep from north to south.Based on the above analysis results,three prospecting targe areas are delineated,through the 1∶20 000 soil geochemical survey,the 118° trending copper anomaly belt with the length of 3.15 km and the width of 300~400 m is found,besides that,the anomaly belt is accompanied with Sb,As,Au and Ag anomalies,the above anomalies are distributed with moniliform shape,which is basically consistent to the prospecting target areas delineated in this paper.

Key words: Copper deposit, Three-dimensional geological modeling, Three-dimensional metallogenic prognosis, Prospecting target area, Soil geochemical survey