摘要
通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，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。
Based on the detailed contrast between the chondrite normalized REE patterns and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust (strata) matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust. It is the contamination that conceals the genuine origin of the ore bearing fluid to a certain extent.
出处
《成都理工学院学报》
CSCD
1996年第4期25-30,共6页
Journal of Chengdu University of Technology
基金
中国科学院黄金攻关课题
中国科学院矿床地球化学开放研究实验室联合资助项目
关键词
金矿床
深部物源
稀土族
浸染型金矿
Carlin type gold deposit
chondrite normalized REE pattern
geochemical evolution
origin of ore bearing materials
upper mantle differentiation
contamination
Yunnan Guizhou Guangxi
