湖南大坳矿区云英岩体型钨锡矿化构造控矿特征  

Structural ore-controlling characteristics of the greisen body-type tungsten-tin mineralization in Da'ao area,Hunan province

作　　者：曾志方[1] 曾永红 

机构地区：[1]中国地质大学,武汉430074 [2]湖南省地质矿产局四一八队,湖南娄底417000

出　　处：《华南地质与矿产》2005年第4期29-34,共6页Geology and Mineral Resources of South China

基　　金：中国地质调查局国土资源大调查项目:"湖南九嶷山-姑婆山地区锡多金属矿评价"(200110200024)

摘　　要：云英岩体型钨锡矿为大坳矿区的主要矿床类型,呈隐伏-半隐伏状产出。通过对矿区构造特征及其形成机制的分析,探讨了构造对钨锡成矿的控制,认为NNE-近SN向区域性断裂控制了矿床就位,呈近SN向展布;弧形裂隙系统控制了矿体的产状和形态,自上而下呈楼层式产出,形态为似穹状。The greisen body-type tungsten-tin deposit is dominating type in Da＇ao ore district that is located at the half-hidden ore body whose shape appears approximate dome. Through an analysis of the structural characteristics and mechanism of deformation, this paper deal with the structural ore-controlling process and suggests that the deposit location is controlled by NNE-approximate SN trending regional faults as well as the deposit distributes by approximate SN extending. An arcuate gap system controls the shapes and attitudes of the ore bodies that are occurrence in stair pattern and appear in approximate dome shape.

关 键 词：云英岩体型钨锡矿 构造特征 构造控矿 湖南大坳 

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