老挝川圹省约俄锡多金属矿区沟系土壤地球化学特征及成矿预测  

Valley system soils geochemical characteristics and metallogenic prediction of the Yue′e tin polymetallic mining area in Xieng Khouang Province,Laos

作　　者：史琪 赵延朋 迟占东 葛华 康铁锁 李发兴 魏翔宇 卢见昆 杨人毅 SHI Qi;ZHAO Yan-Peng;CHI Zhan-Dong;GE Hua;KANG Tie-Suo;LI Fa-Xing;WEI Xiang-Yu;LU Jian-Kun;YANG Ren-Yi(China Nonferrous Metals(Guilin)Geology and Mining Co.,Ltd.,Guilin 541004,China)

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004

出　　处：《物探与化探》2021年第4期824-834,共11页Geophysical and Geochemical Exploration

基　　金：中国有色集团科技计划项目“中国有色矿业集团矿山资源现状调查与找矿潜力分析”(2019KJJH02);中国有色桂林矿产地质研究院有限公司科技基金项目“中色集团矿山企业可持续发展综合分析研究”(KDY2019004-1)资助。

摘　　要：老挝川圹省约俄锡多金属矿区位于老挝川圹—越南长山构造岩浆岩带西部,属长山晚古生代—中生代Cu-Fe-Au等多金属成矿带。通过1∶2.5万沟系土壤地球化学测量工作,结合元素变化系数、浓集系数及相关性等特征进行分析,通过异常查证优选出多个靶区及远景区,在重点靶区根据化探异常特征推断矿化体位置,通过槽探及钻探等工程验证,取得了较好的找矿效果,认为该区具备铜、锡、铅、锌、钨、金等多金属找矿潜力,表明该方法在东南亚热带季风气候发育的厚覆盖区及大面积空白研究区,可快速圈定找矿靶区及远景区,为下一步勘查工作提供有效依据。The tin-polymetallic mining area of the Yue′e ore district,XiengKhouang Province,Laos,is located in the west of the XiengKhouang Laos-Changshan Vietnam tectonic magmatic belt.Based on the 1∶25000 valley system soil geochemical survey,combined with an analysis of the characteristics of element variation coefficients and concentration coefficients,the correlation of elements,anomaly verification,and gold and other polymetallic ore prospecting potentials,the authors optimized multiple target and prospects areas.The position of the mineralized body was inferred based on geochemical exploration anomalies in key target areas.Through trench verification and drilling engineering verification,good prospecting results were achieved.The area is considered to have copper,tin,lead,zinc,tungsten.It is shown that this method can quickly delineate the prospecting target area and distant scenic area in the thick coverage area and extensive blank research area of Southeast Asian tropical monsoon climate,and can provide an effective basis for the next exploration work.

关 键 词：长山构造 沟系土壤地球化学 异常特征 成矿预测 老挝 

分 类 号：P632[天文地球—地质矿产勘探]