湖南省常宁市狮形岭锡矿区地质特征及控矿因素分析  

Analysis on the ore controlling factors and geological features of Shixingling tin mining area in Changning city,Hunan province

作　　者：宁勇云 

机构地区：[1]湖南省地质矿产勘查开发局四一八队,湖南娄底417000

出　　处：《矿产与地质》2014年第1期25-28,共4页Mineral Resources and Geology

摘　　要：狮形岭锡矿赋存于大义山复式花岗岩体内,矿化类型以云英岩脉型为主。通过矿区地质特征的研究,在构造、岩浆岩、蚀变等方面分析矿脉控矿因素。郴州—邵阳NW向深断裂带及"大义山式断裂构造带"形成的次级断裂构成了深断裂控矿—区域性断裂导矿—次级断裂容矿的构造成矿配套体系;岩浆岩,特别是晚期介头单元为矿区成矿母岩,与锡矿形成密切相关,为矿体形成提供成矿物质及热源。The Shixingling tin deposit,a greisen mineralization type,is located in the Dayishan granite body. The study is focus on the geological characteristics,ore controlling factors with the analysis of vein struc-ture,magmatite,alteration,etc.Chenzhou-Shaoyang deep fracture zone in NW and＆quot;secondary fracture fault of Dayishan trend tectonic belt＆quot;formed a metallogenic system of which deep fault as ore controll region-al faults as lead ore structure,and the secondary faults as ore bearing structure.The magmatite,especially the advanced medium head unit of the ore-forming mother rock,is closely related to the formation of ore bodies.It provided ore-forming material and heat source as well.

关 键 词：花岗岩 大义山 介头单元 云英岩脉型 

分 类 号：P618.44[天文地球—矿床学]