湘西南大瓜冲锑矿床控矿因素及成因探讨  

Geological characteristics and genesis of Daguachong antimony deposit in Southwest Hunan Province

作　　者：龙细友 丁亮 

机构地区：[1]江西有色地质矿产勘查开发院,南昌330001

出　　处：《矿产勘查》2010年第3期223-228,共6页Mineral Exploration

摘　　要：大瓜冲锑矿位于牛头寨复式背斜的北西扬起端,锑矿床严格受断裂和褶皱构造控制。锑矿体根据其产出位置及赋矿围岩的不同可划分为三种类型:(1)产于主断裂破碎带中的矿体;(2)产于主断裂下盘硅质岩中的矿体;(3)产于断裂上盘层间破碎带中的矿体。矿区成矿物质主要来源于深部隐伏花岗岩体,成矿期属印支期,矿床属岩浆期后低温热液充填型锑矿。The Daguachong antimony ore deposit, located at the northwestern lifting portion of Niutouzhai anticlinorium, is strictly controlled by the fault and fold. Sb ore bodies are classified to three types according to its occurring positions and hostrocks： 1. ore body in the main fracture zone, 2. ore body in the silicalite in the footwall of major fault, 3. ore body in the interformational frac- ture zone within the hunging wall of fault. The mineralizing material mainly came from the deep blind granite and mineralization formed in Indo- Chinese epoch. The ore deposit is defined as the post magma epoch epithermal deposit.

关 键 词：破碎带 低温热液 大瓜冲 湖南 

分 类 号：P611[天文地球—矿床学] P618.66[天文地球—地质学]