新疆阿舍勒铜多金属矿床原生地球化学特征

PRIMARY GEOCHEMICAL CHARACTERISTICS OF THE ASHELE COPPER POLYMETALLIC DEPOSIT,XINJIANG

以地表及钻孔岩石测量资料为基础，研究阿舍勒铜多金属矿床的原生地球化学特征，查明主要指示元素及其三度空间分布规律，建立有效的地球化学找矿评价指标。研究表明，阿舍勒矿区地层、岩石的微量元素含量显著高于成矿带和区域背景，其含量从区域→成矿带→矿区呈递增趋势；该矿床的地表原生异常沿矿化带呈“面型”展示；

Based on surface and borehole rock survey data,this paper has studied primary geochemical characteristics of the Ashele copper polymetallic deposit,found out main indicator elements and their three dimensional spatial distribution regularity,and established effective geochemical prospecting evaluation indices.Studies show that trace element contents of strata and rocks in the Ashele ore district are obviously higher than their contents in the metallogenic belt and their regional background,with their contents tending to increase from regional background through the metallogenic belt to the ore district.The surface primary anomalies of this ore deposit are in 'planar'distribution along the mineralized zone,and the primary zoning of indicator elements exhibits the two layer structural model of volcanogene massive sulfide deposits characterized by Zn in the upper part and Cu in the lower part.