Application of CSAMT to Deep Mine Prospecting in the Gaoloushan Gold Mine
Received date: 2015-06-29
Revised date: 2015-12-17
Online published: 2016-04-05
The gold veins of Gaoloushan gold mine in Wenxian,Gansu Province primarily located at the lower Devonian strata,and the characteristic of ore rock occurrence is consisted of low resistance and broken alteration phyllite with highly pyritization.Because direct-current electricity can not penetrate carbonaceous strata and its underground transmission is not deep enough,also it is hard to meet in-depth exploration needs.However,the Controlled Source Audio-frequency Magnetotelluric Method (CSAMT) based on the Magnetotelluric (MT) Method,with a strong anti-jamming capability,greater exploration depth,small layout pole pitch,and other advantage such as lower requires terrain,was extensively applied in the solid mineral exploration.We designed a CSAMT profile in mineralized zone with the earlier geological data so as to find the location of the fracture and alteration phyllite,and then it provided some evidence to in-depth drill and decreased its costs.After comparing with the drill results,obviously,CSAMT is an effective way for in-depth exploration in the Gaoloushan gold mine.
Key words: CSAMT; Gaoloushan gold mine; deep prospecting; Gansu Province
YU Chun , CHEN Yongling , LI Jianzhong , ZHAO Weixin , XIE Dan . Application of CSAMT to Deep Mine Prospecting in the Gaoloushan Gold Mine[J]. Gold Science and Technology, 2016 , 24(1) : 59 -63 . DOI: 10.11872/j.issn.1005-2518.2016.01.059
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