有关湖北蛇屋山金矿成因的几点浅识  

Some Thoughts on the Formation of Shewushan Gold Deposit

作　　者：刘源骏 

出　　处：《资源环境与工程》2016年第B04期105-108,共4页Resources Environment & Engineering

摘　　要：根据东起阳新富水、西止嘉鱼蛇屋山矿田100 km范围内所出露的中下寒武—奥陶系及其伴生的大量Au矿床、矿化体和地球化学异常所反映出明显的矿源层特征,由缓倾斜逆冲断层和陡产状张性滑动断层组成的热水环流通道:δ^(34)S、δ^(18)O、δD等同位素值及成矿温度等,与中国贵州,特别是与美国内华达州卡林型金矿对比,认为在成因上定为卡林型问题不大。此外对地表风化—淋漓矿床成矿机制,地表矿与深部原生矿的关系,以及成矿时代等提出了一些看法,并在此基础上提出了下一步找矿方向和应注意的问题。From Fushui of Yangxin County to Shewushan orefield of Jiayu County,there occur the Middle-Upper Cambrian and Ordovician,which bear plenty of gold deposits,mineralization and geochemical abnomalies evidently,reflect the source bed characteristics. The hydrothermal circulation passage is composed of gently dipping overthrust and steep extensive slide fault. The isotopic values such as δ84S、δ18O、δD and the temperation for ore formation are comparable with those in Carlin-type gold deposit of Nevada,North America. Thus the Shewushan gold deposit is of Carlin type. Meanwhile,the author also review the metallogenetic mechanism of weathering-infiltrating deposit,the relationship between surface secondary deposit and underground primary deposit,as well as metallogenetic epoch. In the end,the prospecting area and some notes which should be born in mind are proposed.

关 键 词：蛇屋山 金矿 热水环流 卡林型 

分 类 号：P618.51[天文地球—矿床学]