帮浦矿区东段铅锌矿床地质特征及找矿方向  

Geological Features and Range of Reconnaissance of the Bangpu Pb-Zn Deposit in Tibet

作　　者：周仕伟 郝江波[2] 夏廷高 刘严松[2] 马叶情[4] 

机构地区：[1]四川省地质矿产勘查开发局四0五地质队,成都611830 [2]成都理工大学,成都610059 [3]四川冶金地质勘查局,成都610501 [4]甘肃工业职业技术学院,甘肃天水741025

出　　处：《四川地质学报》2016年第4期598-601,共4页Acta Geologica Sichuan

基　　金：甘肃省天水市科技支撑课题<天水地区泥石流诱发机制与应对措施研究>资助

摘　　要：西藏帮浦铅锌矿位于冈底斯陆缘火山岛弧构造带中部,矿体主要产于下二叠统洛巴堆组灰色大理岩、硅化大理岩、角砾状大理岩和下第三系典中组安山质火山角砾熔岩中,严格受东西向断层控制。矿化围岩蚀变包括绢云母化、硅化、角岩化、矽卡岩化、大理岩化、青磐岩化、黄铁矿化等;矿床上有地球化学Cu、Pb、Zn、Fe、Mn和Cr、Ni、V、Co、As、Ag、Mo等异常。该矿床东段铅锌矿床成因为中低温热液充填一矽卡岩型,具有较大的找矿潜力。The Bangpu Pb-Zn deposit in Tibet lies in the centre of the Gangdise epicontinental volcanic island arc tectonic belt. The Pb-Zn orebodies are confined to gray marble, siliceous marble and brecciated marble of the Lower Permian Luobawei Formation and andesitic volcanic brecciated lava of the Eogene Dianzhong Formation and controlled by lateral faults. Wall rock alterations such as sericitization, silicification, hornfelsization, skarnization, marmorization, propylitization, pyritization are developed. The eastern ore block is mesothermal-epithermal filling -skarn deposit with large prospecting potential.

关 键 词：铅锌矿 地质特征 找矿 帮浦 

分 类 号：P618.42[天文地球—矿床学]