青海阿哈大洼地区地球物理、地球化学特征及金银多金属成矿条件  

GEOPHYSICAL AND GEOCHEMICAL CHARACTERISTICS AND GOLD-SILVER POLYMETALLIC METALLOGENIC CONDITIONS IN AHADAWA AREA,QINGHAI PROVINCE

作　　者：冶建虎 郭海明 何利 刘飞 YE Jian-hu;GUO Hai-ming;HE Li;LIU Fei(Qinghai No.5 Geological Exploration Institute,Xining 810099,China)

机构地区：[1]青海省第五地质勘查院,青海西宁810099

出　　处：《地质与资源》2024年第2期161-168,共8页Geology and Resources

基　　金：青海省地质勘查专项资金项目“青海省乌兰县阿哈大洼金多金属矿预查”(2019048099kc041).

摘　　要：研究区位于柴达木盆地东南缘,大地构造隶属于柴达木盆地北缘蛇绿混杂岩带.通过对区内成矿地质背景、地球物理和地球化学特征进行综合研究,并与邻区赛坝沟金矿对比分析,认为研究区具有优越的成矿地质背景和良好的物化探异常,与赛坝沟金矿具有相似成矿背景.区内寻找构造蚀变岩型金多金属矿和热液充填矿床的成矿条件极为有利.The study area is located in the southeast margin of Qaidam Basin,tectonically belonging to the northern Qaidam ophiolite melange zone.Based on the comprehensive study of metallogenic geological setting,geophysical and geochemical characteristics,and comparison with the neighboring Saibagou gold deposit,it is concluded that the study area has advantaged metallogenic background and well geophysical and geochemical anomalies,with similar metallogenic background to Saibagou gold deposit.There are favorable metallogenic conditions for tectonic altered rock type of gold polymetallic deposit and hydrothermal filling deposit prospecting in the area.

关 键 词：地球物理 地球化学 金银多金属矿床 成矿条件 柴达木盆地 青海省 

分 类 号：P618.5[天文地球—矿床学]