甘南忠曲金矿区物化探找矿模式研究及找矿预测  

The Research and Promoted Application of the Gist with Geophysical and Geochemical Information in Zhongqu Gold Mine District,Gansu Province

作　　者：王光洪[1,2] 罗先熔[1,2] 高谦[3] 梁敏[1] 窦小雨 

机构地区：[1]桂林理工大学广西地质工程中心重点实验室,桂林541004 [2]桂林理工大学有色及贵金属隐伏矿床勘查教育部工程研究中心,桂林541004 [3]北京科技大学土木与环境工程学院,北京100083 [4]甘肃省地质矿产勘查开发局第三地质矿产勘查院,兰州730000

出　　处：《地质与勘探》2009年第4期450-455,共6页Geology and Exploration

基　　金：桂林理工大学广西地质工程中心重点实验室开放基金(编号:桂科能07109011-K022);国际科技合作专项经费项目(编号:2007DFA20910)资助

摘　　要：为了扩大资源储量,降低找矿风险,文章运用大地电磁法、地电化学法与吸附相态汞方法组合在高原寒冷地区开展物化信息进行金矿预测研究。通过已知区可行性研究验证方法组合的找矿成效,总结适合高原寒冷景观条件下的物化探找矿模式,即金矿通常位于Au地电化学异常正投影下方、电阻率高低突变带偏低阻体一侧,配套土壤吸附相态汞异常寻找破碎带型金矿较有效。依据上述找矿模式,在忠曲矿区开展金矿预测工作,在矿区西部发现找矿有利地段3处,东部发现找矿可疑地段1处。To expand the resources reserves and reduces the risk of prospecting ore deposit, Geoeleetric chemical extraction method, controlled-Soilrce audio magnetite Hurlc method and the method of measuring the adsorbed mercury in the surface soil as a whole method, which get the Synthesis infor- mation is effective to locate the ore deposit. So we carry on that combination to forecast the gold ore in the cold area of plateau. Through the feasible research on existing ore by technique combination, we found it effective to detect the deposit. The gist of locating ore mine adapted is, the gold ore is usually under the Au electrochemistry unusual normal, tending to the side of low electronic resistivity in the Intermediate belt which is between low and high electronic resistivity. Combine with absorbed-Hg-phase measurement as help is effective for the exploration for concealed gold deposit . This method found three advantageous sector in the west of the Zhongqu minefield and one suspicious sector in the east, by the gist above.

关 键 词：物化信息 找矿模式 找矿预测 甘南忠曲 

分 类 号：P618.51[天文地球—矿床学] P619.140.8[天文地球—地质学]