湖南大义山地区锡矿床特征及找矿前景分析  

CHARACTERISTICS AND ORE PROSPECTING OF TIN DEPOSITS IN THE DAYISHAN AREA,HUNAN

作　　者：吴迎春[1] 郑伯仁 唐朝晖 

机构地区：[1]中国地质大学,北京100083 [2]湖南省安化县渣潭溪锑矿,安化413500 [3]湖南省地质调查院湘中矿产地质调查所,娄底417000

出　　处：《地质与勘探》2008年第4期14-19,共6页Geology and Exploration

基　　金：中国地质调查局地质大调查项目(编号:199910200220)资助

摘　　要：大义山锡矿床产于大义山复式花岗岩体及接触带,锡矿床类型以蚀变花岗岩体型、云英岩脉型、裂控型为主,前者具有矿体厚度大、品位中等、易选的特点。区域性构造、岩浆岩、围岩联合控制了锡矿的产出和规模,各类型锡矿在垂直和水平方向上具有分带特征。根据锡矿床特征及成矿地质条件分析,认为该区及外围阳明山一带找矿潜力巨大。Dayishan tin deposit occurs in the Dayishan complex granitic body and contacting zones. Types of tin deposit are mainly altered granite type, greisenized vein type and altered structural belt type. Altered granite type deposit has character of thick orebedies, medium grade and easy separation. Distribution and scale of tin ores are jointly controlled by regional structures, magmatic recks, and country rocks. Different type tin deposits show horizontal and vertical zonation. Based on ore geology of tin deposit and ore- forming conditions, it is believed that Dayishan area and Yangmingshan region have big ore prospecting potential.

关 键 词：锡矿类型 矿床特征 找矿潜力 湖南大义山 

分 类 号：P618.44[天文地球—矿床学] P612[天文地球—地质学]