广西凤凰山银矿构造控矿模式及找矿意义  

Structural Ore-controlling Model and Mineral Prospecting of Fenghuangshan Silver Deposit

作　　者：雷英凭[1,2] 

机构地区：[1]中国地质大学(北京),北京100083 [2]广西第四地质队,南宁530031

出　　处：《有色金属（矿山部分）》2009年第2期28-31,共4页NONFERROUS METALS(Mining Section）

摘　　要：广西凤凰山银矿床是上个世纪90年代探明储量的大型矿床。随着勘探程度不断提高,对构造控矿不断有新的认识。本文从区域构造背景研究入手,进一步总结凤凰山银矿床构造对矿化蚀变的控制作用,分析控矿构造组合样式及其形成机理,最终建立矿床构造控矿模式。认为矿体产于NWW向压剪性断裂中局部张性地段,断裂产状变化部位以及NWW向断裂与NW向断裂交会部位是成矿有利部位。Fenghuangshan silver deposit in Guangxi is proved to be a large scale of silver deposit the 90s last century.Based on study of the regional geologic settings,the features of ore-controlling structures are further discussed and the properly model for the formation and evolution of these ore-controlling structures are presented.Results show that ore bodies are sited in the extensional locals of the whole compressional-shearing ore-hosting faults and the positions that the altitudes of the NWW-trending faults variation and the NWW-and the NW-trending fault intersection are benefit for mineralization.

关 键 词：凤凰山银矿床 控矿构造 找矿预测 

分 类 号：P618.510.2[天文地球—矿床学] P618.51[天文地球—地质学]