地质与勘探2018，Vol.54Issue(3)：490-500,11.
甘肃南部大水金矿集区找矿标志及找矿潜力分析
Prospecting Indicators and Potential of the Dashui Gold Ore Concentration Area in Southern Gansu Province
摘要
Abstract
The Dashui gold ore concentration area has been proved to host more than 150 tons of gold in South Gansu Province since its discovery. With the help of data from comprehensive exploration means,such as high-accuracy ground magnetic survey,stream sediment measurement,soil survey, geological section,and structural alteration mapping,this paper summarizes the metallogenic characteristics and regularities of the Dashui gold ore concen-tration area.Permian and Triassic carbonate rocks in the area are closely related to the gold deposit,and the strata play a role in generation of gold depos-its.Fault structure plays a dominant role in mineralization.Besides,there is a genetic relationship between magmatism and gold mineralization.The altera-tion plays a controlling role in gold mineralization.The geochemical anomalies delineated by soil survey correspond well to ore bodies and secondary holoes are the most direct prospecting mark.The gold deposits have a close relation with the intermediate acid intrusive rocks in space and time,which can cause magnetic anomalies.According to the above prospecting indicators,10 tons of gold in the Ge'ertuo gold mine has been newly discovered.In addition,the prospectors not only controlled the ore extension,but also found several thick blind ore bodies with 3 tons of gold resources in the Geerke gold mine area.关键词
大水金矿/矿集区/找矿标志/找矿潜力/甘肃Key words
Dashui gold mine/ore concentration area/prospecting indicator/prospecting potential/Gansu Province分类
天文与地球科学引用本文复制引用
史文全,张波..甘肃南部大水金矿集区找矿标志及找矿潜力分析[J].地质与勘探,2018,54(3):490-500,11.基金项目
中国地质调查局典型矿集区潜力评价示范项目(编号:12120115036501)资助. （编号:12120115036501）
