甘肃小柳沟铜钨多金属矿田构造控矿作用及其找矿方向  

STRUCTURAL CONTROL AND ORE PROSPECTING IN THE XIAOLIUGOU Cu-W DEPOSIT,GANSU

作　　者：汤静如[1] 奚小双[1] 孔华[1] 安涛[2] 

机构地区：[1]中南大学地学与环境工程学院,长沙410083 [2]甘肃有色地质勘查局四队,张掖734012

出　　处：《地质与勘探》2006年第3期49-52,共4页Geology and Exploration

基　　金：国家自然科学基金(编号:40372099)资助

摘　　要：小柳沟铜钨多金属矿田是我国西北大型钨矿的典型代表,其矿体受构造控制明显:背斜层间滑动虚脱构造控制了主矿体的形态、规模和产状,隐伏岩体侵位构造控制了区内矿床(点)的分布,岩性层构造裂隙的发育程度控制了矿体的富集。上述3种构造作用表明在小柳沟和祁宝矿床之间及世纪矿床西部外围地段有望找到新的矿体。Xiaoliugou Cu - W deposit is a typical representative of large Cu - W deposit in the northwest China. Orebodies are obviously controlled by structures. Intedayered detachment structures of anticline control shape, scale and occurrence of main orebodies, and intrusive structure of concealed magma control distribution of deposits or spots. Enrichment of orebody is controlled by extent of fractures in the layer. It is proposed that new orebodies can be found between Xiaoliugou and Qibao deposit, as well as in the west of Shiji deposit.

关 键 词：背斜层间滑动虚脱构造 岩体侵位构造 岩性层构造裂隙 小柳沟 

分 类 号：P618.41[天文地球—矿床学] P618.67[天文地球—地质学]