摘要
锡铁山铅锌矿床产于青海省柴达木盆地北缘早古生代裂陷的中基性火山-沉积岩系中,是我国规模最大的铅锌矿床之一。流体包裹体的温度、盐度、气液相成分测试以及同位素组地球化学研究证明锡铁山矿床形成于喷流沉积系统。管道相成矿流体以深源为主,深源流体的CO_2等气相组分溢出及深源流体与海水的混合作用导致了成矿物质沉淀,层状矿体中石英岩是管道相向SE方向位移、喷流的结果,锡铁山铅锌矿床是VMS型与Sedex型系统的复合或过度。
The Xitieshan lead-zinc deposit in Qinghai Province,China occurs in an Early Paleozoic sequence of intermediate-basic volcanic rocks and sediments developed in the northern margin of the Qaidam basin.It is one of the biggest lead-zinc deposits in China. The deposit is evidenced an sedimentary exhalative on system by isotope geochemical study and fluid inclusion measurement including homogenization temperature,salinity and molecular and ion compositions.The ore-forming fluids in feeders were deeply sourced. ...
出处
《岩石学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第11期3007-3015,共9页
Acta Petrologica Sinica
基金
自然科学基金项目(40672061)
国家科技攻关项目(2003BA612A-07)
973计划2006CB403500项目资助
关键词
喷流沉积系统
流体包裹体
深源水
锡铁山铅锌矿
青海省
Sedimentary-exhalative system
Fluid inclusion
Deeply-sourced fluid
Xitieshan Pb-Zn deposit
Qinghai province
