广西河池市北香银-锌多金属矿床地质特征及成因探讨  

Geological characteristics of the beixiang polymetallic deposit in Hechi,Guangxi and its ore genesis

作　　者：何国朝[1] 秦来勇[1] 伍静[2] 张波[1] 

机构地区：[1]桂林矿产地质研究院,广西桂林541004 [2]桂林工学院,广西桂林541004

出　　处：《矿产与地质》2006年第6期608-611,共4页Mineral Resources and Geology

基　　金：国家十五科技攻关项目"大型锡矿山接替资源探查技术与示范"(2004BA615A-03);国家财政资助项目"广西河池市北香银多金属矿普查"共同资助

摘　　要：北香是丹池成矿带上的一个重要构造隆起区,成矿条件良好,但是近四十年的地质勘查未能实现找矿的重大突破。通过对矿区成矿特征及控矿条件的分析,认为矿床明显受NW向同生沉积断层的控制,具有喷流沉积和后期热液叠加改造的两期成矿特征。目前发现的矿体仅是矿床上部脉状矿,其下部的下泥盆统中应存在层状似、层状的厚大矿体。Beixiang is an important Structure rise on Danchi ore belt with a favorable ore forming condition but there is no obvious breakthrough in geological exploration in recent 40 years. It is believed that the deposit is obviously controlled by NW trending synsedimentary fault and characterized by two stage mineralization of spout sedimentation superimposed and transformed by late stage hydrothermal fluid through the analysis on metallogenic character and ore controlling condition of the mine. The orebodies which have been found so far are ore veins in upper part of the deposit only,there should be thick stratiform like or stratiform orebodles occurring in Lower Devonian series.

关 键 词：银-锌多金属矿床 成因 矿床地质特征 喷流沉积 同生沉积断层 北香 广西 

分 类 号：P618.52[天文地球—矿床学] P618.43[天文地球—地质学]