摘要
冬瓜林金矿床位于云南省镇沅县境内,通过野外考察、镜下观察和前人资料分析,认为矿区的蚀变类型有绢云母化、碳酸盐化、黄铁矿化和硅化等;热液成矿活动分为4个主要阶段:①早期硅化阶段;②绢云母碳酸盐硫化物阶段;③多金属硫化物碳酸盐化阶段;④辉锑矿化硅化阶段。其中第②、③阶段为主要金成矿阶段。
The Donggualin gold deposit is located in Zhenyuan,Yunnan province.Based on the field investigation and microscopic observation,several alteration types of the wall rock are recognized,including sericitization,carbonatization,pyritization and silicification.The ore-forming hydrothermal process can be divided into four stages:①Silicification in the early stage;②Sericitization-carbonatization-sulfide stage;③Polymetallic sulfide-carbonatization stage;④Stibnite-silicification stage.The stages ② and ③are the major time for gold formation.
出处
《中国矿业》
北大核心
2016年第S1期285-288,共4页
China Mining Magazine
基金
国土资源部科技专项"地质遗迹标本采集与购置"项目资助(编号:1211411381004)
关键词
冬瓜林金矿床
围岩蚀变
成矿阶段划分
Donggualin gold deposit
wall rock alteration
ore-forming hydrothermal process division
