摘要
从沉积建造、岩浆岩、构造-岩浆活动、成矿流体性质、矿石微量元素和硫同位素特征等方面分析了大瑶山地区与浅成-超浅成岩浆岩有关的铜金多金属矿成矿地质条件,认为矿床属沉积富集-断裂构造-热液(气)叠加改造型成因,可概括为矿源层形成、岩浆期热液叠加成矿、岩浆期后断裂构造热液改造成矿3个阶段.
The copper and gold deposits in Dayaoshan area of Guangxi Region occur mainly in Cambrian strata. The Cu- Au mineralization is genetically related to the Caledonian and Yanshanian tectonomagmatic activities. Based on the results of previous geological survey and researches, the metallogenic conditions for the Cu-Au polymetal deposits related to hypabyssal and super-hypabyssal igneous rocks are analyzed from the view of sedimentary formation, magmatic rock, tectonomagmatic activity, ore-forming fluid, trace element and sulfur isotopic characteristics. It is concluded that the deposits in the area genetically belong to sedimentary enrichment-fault structure-hydrothermal overlapping reformation type. The metallogenesis underwent early stage of sedimentary enrichment, middle stage of magmatie hydrothermal overlapping mineralization and end stage of post-magmatic fault and hydrothermal reformation.
出处
《地质与资源》
CAS
2011年第4期287-291,共5页
Geology and Resources
关键词
浅成-超浅成岩浆岩
铜金多金属
矿床成因
成矿作用
大瑶山
广西
hypabyssal and super-hypabyssal igneous rock
copper-gold polymetal
genesis of deposit
metallogenesis
Dayaoshan
Guangxi
