青海省埃坑德勒斯特地区水系沉积物地球化学特征及找矿远景  

Geochemical characteristics of the stream sediment and prospecting potentials in Aikengdelesite region of Qinghai

作　　者：郭守栋 王天赐 者瑛 王海鹏 陈小宁 Guo Shoudong;Wang Tianci;Zhe Ying;Wang Haipeng;Chen Xiaoning(No.3 Geological and Mineral Exploration Institute of Qinghai;Center for Hydrogeology and Environmental Geology,China Geological Survey)

机构地区：[1]青海省第三地质矿产勘查院 [2]中国地质调查局水文地质环境地质调查中心

出　　处：《黄金》2018年第12期12-17,共6页Gold

基　　金：2017年青海省地质勘查基金项目(2018137025jc008)

摘　　要：埃坑德勒斯特地区位于柴东缘,东昆南复合拼接带内,是东昆仑多金属成矿带的重要组成部分。通过在区内开展1∶2. 5万水系沉积物测量,获得了较为丰富的地球化学测量成果,完成了对成矿元素含量特征、分布特征、变化特征、相关性和异常区特征的分析。结果表明,该研究区成矿元素的富集、贫化受地层、侵入岩及构造控制较为明显,Au、Ag、Cu、Pb、Zn、Mo是区内重要的目标矿种。结合区内地质、物化探及矿产信息,圈定出6处找矿远景区。其中,达特乌拉—哈拉郭勒金银铅多金属找矿远景区和埃坑德勒斯特—乌兰托来托钼银多金属找矿远景区可作为进一步的找矿靶区,为下一步找矿勘查提供理论基础。Aikengdelesite region,located on the composite joint zone of the east margin of Qaidam and the south of East Kunlun,is an important part of east Kunlun polymetallic metallogenic belt.1∶25 000 stream sediment survey carried out in the region obtained rich geochemical survey results,based on which the content,distribution,variation,relevance of ore-forming elements and the features of anomalous region are analyzed.The results show that the ore-forming element enrichment and dilution in this area are evidently controlled by strata,intrusion rocks and structures,and Au,Ag,Cu,Pb,Zn and Mo are important target ore species in the area.According to the regional geology,physical and chemical prospecting and minerals data,6 ore-prospecting spots are delineated.Among them,Datewula-Halaguole Au-Ag-Pb polymetallic ore-prospecting area and Aikengdelesite-Wulantuolaituo Mo-Ag polymetallic ore-prospecting area can be target areas ready for further prospecting.The study can provide theoretical basis for next-step prospecting and survey.

关 键 词：地球化学特征 水系沉积物测量 找矿远景 找矿靶区 埃坑德勒斯特地区 

分 类 号：TD15[矿业工程—矿山地质测量] P632.3[天文地球—地质矿产勘探]