安徽省青阳县百丈岩钨钼矿床地质特征、成因及找矿方向分析  

ANALYSIS OF GEOLOGICAL FEATURES, ORIGIN AND ORE-PROSPECTING DIRECTION OF THE BAIZHANGYAN TUNGSTEN-MOLYBDENUM DEPOSIT, QINGYANG COUNTY, ANHUI PROVINCE

作　　者：赵文广[1] 孙乘云[1] 狄勤松[1] 蔡晓兵[1] 

机构地区：[1]安徽省地质调查院,安徽合肥230001

出　　处：《安徽地质》2007年第2期90-94,104,共6页Geology of Anhui

基　　金：2003;2004年度安徽省省级地质勘查专项费项目(皖2003-2;皖2004-8)

摘　　要：百丈岩钨钼矿床为安徽省“十五”期间省级地质勘查专项费项目取得重要成果的4个金属矿床之一,是在过去的老矿点基础上经进一步工作查明的中型钨钼共生的层控夕卡岩型矿床。该矿床主要受燕山期细粒花岗岩外接触带下震旦统蓝田组层位控制,从蓝田组一段至蓝田组四段均有矿体分布。矿体呈层状、似层状,近平行互相叠置。本文在总结矿床地质特征和矿石质量特征的基础上,探讨了矿床成因和控矿因素,并分析了找矿方向,指出细粒花岗岩岩舌突进蓝田组围岩也即背斜的倾没部位以及矿床外围北东方向是找矿的有利部位,可作为今后进一步工作的重点地段。As one of the four metallic ore deposits with major achievements obtained from the provincial special-fund geological prospecting projects in the ?°Tenth Five-Year Plan?± period of Anhui Province,the Baizhangyan tungsten-molybdenum ore deposit turned out to be a middle-scale tungsten-molybdenum coexisting strata-bound skarns deposit discovered on the basis of previous ore spot.It is substantially strata-bound by the lower Sinian Lantian Formation under the outer contact zone of the Yanshanian fine-grained granite.Ore bodies are all found from member 1 to member 4 of the Lantian Formation and most of them are stratified,similarly stratified,approximately parallel and overlapped with each other.This paper,based on summarization of geological features and ore quality features of the deposit,discussed its origin and ore-control factors,analysed the direction for ore prospecting and pointed out that the rock tongue of fine-grained granite intruding wall rock of the Lantian Formation,i.e.,the pitching end of anticline and the NE trending periphery of the deposit are favourable to ore prospecting and can be the key section for further work in the future.

关 键 词：层控夕卡岩型 鸲钼共生矿 细粒花岗岩 蓝田组 百丈岩 

分 类 号：P618.2[天文地球—矿床学]