江西铅山王坞钼矿区土壤地球化学异常特征与找矿效果评价  

Soil geochemical anomaly characteristics and exploration effect evaluation in Wangwu molybdenum mining area in Qianshan County of Jiangxi

作　　者：李康东 黄鸿新 罗平[1] 郑忠超 石宇 黄卫平 LI Kangdong;HUANG Hongxin;LUO Ping;ZHENG Zhongchao;SHI Yu;HUANG Weiping(Northeastern Jiangxi Geological Party,Bureau of Geology and Mineral Resources of Jiangxi Province,Shangrao 334000,Jiangxi,China)

机构地区：[1]江西省地矿局赣东北大队,江西上饶334000

出　　处：《矿产与地质》2021年第5期959-965,共7页Mineral Resources and Geology

基　　金：江西省地质矿产勘查开发局“江西省铅山县王坞铜矿普查”(赣地矿2014-31);“钦杭成矿带东段矿产资源潜力评价”(赣地矿2019-37);“江西省铅山县王坞钼铜矿详查”(赣地矿赣东北字2020-5)共同资助。

摘　　要：针对王坞钼矿区地质特征及地貌景观特征,选择1∶2万土壤地球化学测量对勘查区进行了化探扫面,分析包括Mo、W、Cu等10种不同元素,结合相关特征分析和R型聚类分析,总结了元素组合及分类特征,最后区内共圈定4个综合异常。其中Ht-2-2综合异常的W、Bi、Mo异常叠合较好,单元素异常具有从西向东的侧向分带趋势,Cu、W、Bi、Mo、Sn异常明显受岩浆热液、构造作用控制。经施工钻探对其进行查证,在该综合异常区圈出钼矿体18个,矿床工业类型为石英脉型,规模达中型。结果显示区内土壤地球化学异常对找矿具有较好的指示作用,为重要找矿标志;通过地质与土壤地球化学测量的有效结合,大幅度提高了勘查区找矿效果。According to the geological characteristics and geomorphological landscape characteristics of Wangwu molybdenum mining area,1∶20000 soil geochemical survey is carried out in the exploration area,and 10 different elements,including Mo,W,Cu of the samples are analyzed.Combined with correlation feature analysis and R-type cluster analysis,the element assemblage and classification characteristics are summarized.Finally,four comprehensive anomalies are delineated in the area.Among them,W,Bi and Mo element anomalies of Ht-2-2 comprehensive anomaly overlap well,single element anomaly has a lateral zoning trend from west to east,and Cu,W,Bi,Mo and Sn element anomalies are obviously controlled by the magmatic hydrothermal fluid and tectonic process.It is verified by construction drilling that there are circled out for 18 molybdenum orebodies in the comprehensive anomaly area.The industrial type of the deposit is quartz vein type and the scale is medium.The result shows that the soil geochemical anomaly in the area has a good indicative effect on ore prospecting and is an important prospecting indicator.The prospecting effect in the exploration area has been greatly improved through the effective combination of geological investigation and soil geochemical survey.

关 键 词：钼矿 土壤地球化学测量 找矿评价 铅山王坞 江西 

分 类 号：P618.65[天文地球—矿床学] P632[天文地球—地质学]