摘要
从矿体产出特征 ,矿石化学成分、矿物成分、矿石结构构造、银、金赋存状态及银、金矿物特征等方面描述了余家洼银金矿床地质特征 ,提出了该矿床为火山喷发沉积—变生热液再造型中低温热液银金矿床的认识 ,并从地层、岩性、构造、围岩蚀变及地球化学等方面总结了该类型银金矿床的找矿标志。
Geological characteristics of Yujiawua silver- gold deposit are expounded in aspects of ore-body ocurrence,ore chemical and mineral compositions,ore textures,Ag and Au hosted states, Ag and Au minerals features,etc.It is advanced that Yujiawua silver-gold deposit is a meso- epithermal deposit with volcanosedimentary- metahydrothermal reformation.Finally,the prospecting criteria for this type of silver-gold deposit are summarized in aspects of stratohorizon, lithologic chracter,structure,wall-rock alteration,geochemistry,etc.
出处
《湖北地矿》
2000年第1期12-19,共8页
Hubei Geology & Mineral Resources
关键词
银金矿
地质特征
找矿标志
地球化学
构造
地层
Yujiawua silver-gold deposit geological characteristic prospecting criteria
