新疆乌恰县阿克塔木–阿克塔什地区地球化学特征及找矿方向  

Geochemical Characteristics and Prospecting Orientation in the Aketamu–Aketashi Area in Wuqia,Xinjiang,West China

作　　者：沈宏飞 闫鲜 SHEN Hongfei;YAN Xian(Key Laboratory of Coal Resources and Green Mining in Xinjiang,Ministry of Education,Xinjiang Institute of Engineering,Urumqi 830023,Xinjiang,China;Jiangsu Geological Bureau,Nanjing 210000,Jiangsu,China)

机构地区：[1]新疆工程学院,新疆煤炭资源绿色开采教育部重点实验室,新疆乌鲁木齐830023 [2]江苏省地质局,江苏南京210000

出　　处：《西北地质》2023年第2期109-118,共10页Northwestern Geology

基　　金：中国地质调查局项目“全国矿产资源国情调查与综合评价”(DD20190606);深地资源勘查开采专项“深部靶区圈定与资源潜力评价”(2018YFC0603904)联合资助。

摘　　要：笔者在1∶5万水系沉积物测量成果的基础上,对阿克塔木-阿克塔什一带的Cu、Au、Zn等18种元素地球化学特征进行了初步总结。发现该区Cu、Au等元素具有较高的背景,且分异较大。R型聚类分析显示Cu元素与Zn、Cd等亲硫元素相关性强,而Au元素显示了独立的成矿性。本次工作共圈定了35个以Cu、Au为主的综合异常,并对异常进行了评序和分类;共圈定甲类异常4个,乙类异常22个,丙类异常7个,丁类异常2个。结合区内成矿地质条件和异常检查工作,优选了萨洛依、小尚亥–依买克、古鲁滚涅克、阿克沙热、央布拉克及乌鲁阿特等6个地球化学成矿远景较好的靶区;指出该区的找矿方向应以寻找海相块状硫化物型铜(锌)矿和岩浆–热液石英脉型金(银)矿2个方向进行。Based on the 1∶50000 scale of stream sediment survey results,this paper preliminarily summarizes the geochemical characteristics of 18 elements such as Cu,Au,Zn.The results indicate that the elements of Cu,Au are abundance in this area,and they have a high coefficient of variation.R–type cluster analysis shows that the element of copper has strong correlation with chalcophile elements such as Zn and Cd,while Au shows independent mineralization.The study defines 35 integrated anomalies that are mainly composed of the elements of Cu and Au.Evaluates,classifies and ranks all the anomalies,and then divided 4 A–types of anomalies,22–B types of anomalies,7 C–types of anomalies and 2 D–types of anomalies.Based on the metallogenic geological conditions and anomaly inspection,selects six target areas as the favorable ore–prospects in the survey area,such as Saluoyi,Xiaoshanghai–Yimaike,Gulugunnieke,Akeshare,Yangbulake and Wuluate.It suggests that the prospecting should be carried out in two directions:the VMS Cu(Zn)deposits and the magmatic-hydrothermal quartz-vein type Au(Ag)deposits.

关 键 词：西昆仑 1∶5万水系沉积物测量 地球化学特征 找矿靶区 

分 类 号：P6323[天文地球—地质矿产勘探]