金木达-南木达地区微量元素分带特征及找矿  

Horizontal Zoning and Prospecting for Minor Elements in the Jinmuda-Nanmuda Region, Zamtang, Sichuan

作　　者：杨大强[1] 熊观[1] 张伟[1] 张治贵 王焕国 黄健[1] 

机构地区：[1]四川省地质矿产勘查开发局化探队,四川德阳618000

出　　处：《四川地质学报》2017年第3期504-508,共5页Acta Geologica Sichuan

基　　金：川滇黔相邻地区地质矿产调查(项目编码:1212011220415)

摘　　要：四川壤塘金木达—南木达地区地处我国川西北"金三角"金成矿带,该带发育多处大中型微细浸染型金矿床。前人对该带金的成矿地质、构造及成矿规律研等究较较多,但对微量元素的分带却没有研究。该文依据区内1∶5万水系沉积物测量成果对Au、As、Sb、Hg、Cu、Pb、Zn、Ag、Bi等的含量特征、相关性及水平分带序列进行了研究表明,带内As、Sb可作为金矿的上部位元素,异常区微量元素分带表现为矿体上部逆向分带、矿体中上部正向分带相互叠加,表明区内具有隐伏矿体,地表或浅部矿体剥蚀程度较低,对区内深部找矿具有良好的指示意义。The Jinmuda-Nanmuda region, Zamtang, Sichuan lies in Chuansangan Gold Delta. This paper deals with Au, As, Sb, Hg, Cu, Pb, Zn, Ag, Bi geochemical anomalies and their horizontal zonation in the Jinmuda-Nanmuda region based on 1：50000 stream sedimentary survey. The study indicates that As and Sb may be considered as pathfinder elements and distribution of minor elements is characterized by reverse zonation. Superimposition of normal zonation on reverse zonation in the middle and upper parts of the orebodies shows existence of buried orebody in the depth.

关 键 词：金矿 地球化学勘探 元素分带 金木达-南木达 

分 类 号：P632.3[天文地球—地质矿产勘探]