金寨县洪冲地区原生晕地球化学特征及找矿潜力分析  

GEOCHEMICAL FEATURES AND ORE EXPLORATION POTENTIAL ANALYSIS OF PRIMARY HALO IN THE HONGCHONG AREA, JINZHAI COUNTY

作　　者：方明[1] 张怀东[1] 史春鸿[2] 王波华[1] 王宽[1] 

机构地区：[1]安徽省地质矿产勘查局313地质队 [2]安徽省地质调查院

出　　处：《安徽地质》2015年第4期292-297,共6页Geology of Anhui

基　　金：安徽省地质勘查基金项目(2011-2-22)

摘　　要：结合研究区内的地质背景,系统论述了洪冲地区多金属元素原生晕地球化学特征,圈定综合异常共16处。总体上,异常具有一定的分带性,从南到北大致为:Cu-Mo-Au→Pb-Zn-Ag→Pb-Ag,具有高温到低温的特征,空间分布明显受燕山期岩浆热液活动和构造断裂等因素联合控制,并且Mo、Cu、W、Au等尾晕元素与As、Sn等头晕元素相互叠加,显示出多阶段叠加成矿的特点。其中Hs5、Hs7、Hs14、Hs15综合异常带,具有良好的找矿潜力。Considering geologica-I setting of-the study area, this paper systemati^cally discussed geochemical features of primary halo of a number of metallic elements in the Hongchong area, and circled 16 places of comprehensive anomalies. In general, the anomalies are zoned from south to north roughly as Mo-Au--＊Pb-Zn- Ag-.Pb-Ag, from high to low temperature, are spatially co-controlled by the Yanshanian magmatic thermal fluid activities and structural fractures, with Mo, Cu, W, Au tail halo elements overlapping with As and Sn head halo elements showing multi-stage superimposition ore-forming characteristics. Of those, HsS, Hs7, Hsl4 and Hsl5 comprehensive anomalous zones are prospective for mineral exploration.

关 键 词：原生晕 地球化学特征 找矿潜力分析 金寨洪冲 

分 类 号：P632.1[天文地球—地质矿产勘探]