地质与勘探2017，Vol.53Issue(5)：923-934,12.
青海祁漫塔格成矿带地球物理方法找矿有效性试验
Effectiveness Experiments of Geophysical Methods in the Qimantage Metallogenic Belt of Qinghai Province
摘要
Abstract
With the deep development of mineral resources and geological surveys in the Qimantage metallogenic belt of Qinghai, geophysical methods are playing a more and more important role, especially in the prospecting of concealed deposits. The experiments and demonstration work of the geophysi-cal methods including gravity, magnetism, IP intermediate gradient, CSAMT and AMT, have been conducted in the Xiarihamu nickel mine area and its periphery, which hosts typical topographic features in the Qimantage metallogenic belt in Qinghai. The results show that these methods are effective in the mineral resources and geological surveys in this area after solving some technical problems in the implementation process. Further summaries suggest that when geophysical methods are used to investigate the focused areas, the high-precision gravity, magnetic and IP intermediate gradient surveys at scales greater than 1:10000 should be carried out first, followed by fine analysis of the measured anomalies. Based on them, IP and electromagnetic sounding are made successively, permitting to determine depths of geological bodies in the subsurface. Finally, a comprehensive analysis on the metallogenic prospect is performed. This paper summarizes the effectiveness experiments of geophysical methods which can be used as a reference for the selection of geophysical methods in the mineral resources and geological survey in the Qimantage metallogenic belt of Qinghai.关键词
地球物理勘探方法/青海/祁漫塔格/有效性试验Key words
geophysical method/Qinghai Province/Qimantage/effectiveness experiment分类
天文与地球科学引用本文复制引用
高鹏,耿涛,冀显坤,杜辉,白运,田中英,刘生荣..青海祁漫塔格成矿带地球物理方法找矿有效性试验[J].地质与勘探,2017,53(5):923-934,12.基金项目
中国地质调查局"青海祁漫塔格成矿带金属矿地质矿产调查"项目(编号:12120113031600)和"东昆仑铜镍多金属资源基地调查"二级项目(编号:DD20160013)联合资助. （编号:12120113031600）
