地质-化探-遥感多元信息找矿在甘肃北山大口子山一带的应用  

Application of integrated Geological,Geochemical and Remote Sensing data to Prospecting in Dakouzishan area,Beishan district,Gansu province

作　　者：方成豪 陈杰 杨镇熙 雷自强 黄炜华 王振 FANG Chenghao;CHEN Jie;YANG Zhenxi;LEI Ziqiang;HUANG WeiHua;WANG Zhen(The Fourth Institute of Geological and Mineral Exploration of Gansu Bureau of Geology and Mineral Resources,Jiuquan 735000,Gansu,China)

机构地区：[1]甘肃省地质矿产勘查开发局第四地质矿产勘查院,甘肃酒泉735000

出　　处：《地质找矿论丛》2024年第2期275-284,共10页Contributions to Geology and Mineral Resources Research

基　　金：甘肃省重点人才项目(2023RCXM04);甘肃省科技计划项目(22JR5RA819);甘肃省省级基础地质调查项目“甘肃省玉门市大口子山一带1∶5万矿产远景调查”(甘财经[2018]132号、甘资财发[2019]10号、甘资财发[2020]8号);甘肃省省级基础地质调查项目“甘肃省瓜州县花牛山一带1∶2.5万矿产远景调查”、(甘资字[2023]37号);甘肃省省级基础调查项目“1∶25000矿产地质调查技术要求研究”资助。

摘　　要：大口子山位于甘肃省玉门市北侧,区内大面积被第四系覆盖,基岩出露差,传统找矿方法很难取得突破。笔者为获取更多的找矿信息,在研究区选用地质、化探、遥感相结合的方法,有效筛选矿致异常,以提高找矿效果。目前在研究区已发现金矿(化)体5条,砷矿体2条,硅灰石矿体1条,钨矿(化)体4条,综合找矿效果明显。显示出该方法对浅覆盖区及基岩出露差的区域均有较好的找矿效果。Dakouzishan area is located in the north of Yumen City,Gansu Province.Most oft he area is covered by the Quaternary system with rare bedrock outcrops.Traditional prospecting has made little breakthroughs in the area.The authors collect and integrate geological,geochemical and remote sensing data to screen ore-causing anomalies.As a result 5 gold(mineralized) bodies,2 arsenic ore bodies,1 wollastonite ore body and 4 tungsten ore(mineralized) bodies have been located.The integration method is effective for prospecting in such are with shallow cover and rare bed rock outcrops.

关 键 词：大口子山 浅覆盖区 多元信息找矿 矿致异常 北山南带 甘肃省 

分 类 号：P627[天文地球—地质矿产勘探]