摘要
本文以云南老王寨金矿煌斑岩为例 ,从岩石产出的构造环境、源区地幔交代富集作用、岩浆演化中硅酸盐熔体 碳酸盐熔体液态不混熔作用、岩石中CO2 的来源、蚀变流体特征、与成矿的关系以及高温高压实验等方面分析了幔源岩浆活动过程中的去气作用。
As exemplified by lamprophyres in Laowangzhai gold deposit, Yunnan Province, this paper discussed the degassing in the processes of mantle derived magmatism based on the study results of the regional tectonic setting, mantle metasomatism, liquid immiscibility of silicate carbonate melts during magmatic evolution, the source of CO 2 in rocks, the characteristics of altered fluids, the relationship between rocks and gold mineralization, and experiments at high pressure and temperature etc.
出处
《矿物岩石地球化学通报》
CAS
CSCD
2001年第1期1-5,共5页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家重点基础研究发展规划项目(G1999043203)
国家攀登计划预选项目(95预39)联合资助。
关键词
幔源岩浆
去气作用
煌斑岩
老王寨金矿
mantle derived magmatism
degassing
lamprophyres
Laowangzhai gold deposit
