摘要
本文通过硫、铷锶、氩和氢氧同位素地球化学研究,论证了本区金矿的成矿物质初始来源于上地幔分异,但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳(地层)物质,从而在一定程度上掩盖了成矿物质的实质来源。
Based on the S,Rb-Sr,Ar and H-O isotope geochemistry study,this paper proves origin of ore-bearing fluid for the carlin-type gold deposits in the area was by the upper mantle differen- tiadon,but crust(strata)matter contaminate partly plutonic ore-bearing fluid during which mov- ing from mantle to crust.It is the contamination that conceal to a certain extent the genuine origin of ore-bearing fluid.
出处
《矿物岩石》
CAS
CSCD
1996年第4期106-111,共6页
Mineralogy and Petrology
基金
中国科学院"八五"黄金科技攻关课题(Ky 85-12-04-02)
中国科学院矿床地球化学开放研究实验室课题联合资助
关键词
同位素地球化学
矿质来源
金矿床
流体成矿
carlin-type gold deposit
isotope geochemistry
origin of ore materials
upper mantle differentiation
contamination
Yunnan-Guizhou-Guangxi
