湖南大坳地区云英岩蚀变体型钨锡矿床地质特征及控矿因素  

Geological characteristics and ore-controlling factors of Da'ao greisen-type W-Sn deposit in South Hunan Province

作　　者：廖凤初[1] 

机构地区：[1]湖南省地质矿产勘查开发局418队,湖南娄底417000

出　　处：《华南地质与矿产》2004年第3期20-25,共6页Geology and Mineral Resources of South China

基　　金：中国地质调查局大调查项目(200310200070).

摘　　要：大坳云英岩蚀变体型钨锡矿产于九嶷山复式花岗杂岩体中。钨锡矿体赋存在呈半隐伏产出的蚀变体中,且自下而上重叠分布,具"楼层式"结构的特点;矿体形态、有用组分的分布具有明显的分带性,产状、形态的变化与蚀变体具有一致性。研究认为花岗岩浆的侵位、区域性断裂的多次脉动作用及蚀变作用是区内钨锡矿形成的重要控制因素。The Da'ao greisen-type W-Sn deposit is located in the Jiuyishan multiple granitic body. The orebodies host in half-concealed altered body and show distinct zoning accordant with the greisen. Research indicates that the main ore-controlling factors are intrusion of granitic magma, multiple activities of regional faults and greisenization.

关 键 词：云英岩蚀变体 钨锡矿 控矿因素 湖南 

分 类 号：P618.67[天文地球—矿床学] P618.44[天文地球—地质学]