豫西矿集区岩浆热液叠加改造型矿床特征  

Characteristics of the magmatic hydrothermally overprinted and reworked deposits in the clustered ore deposit area in western Henan province

作　　者：星玉才[1] 何进[1] 高旭升[1] 王江瑞[1] 岳辉[1] 

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,河南洛阳471023

出　　处：《地质找矿论丛》2013年第4期552-558,共7页Contributions to Geology and Mineral Resources Research

基　　金：河南省国土资源厅地质矿产科技攻关项目(编号:[2010]61-06号)资助

摘　　要：文章对豫西矿集区成矿类型进行了划分,归纳为3大类6个成矿类型。对岩浆热液叠加改造型矿床定义、成矿地质背景、构造转换与成矿进行了阐述,并通过对上宫金矿的矿石矿物共生组合、矿化蚀变特征、同位素地质特征研究,认为岩浆热液叠加改造型矿床赋矿地层古老,经历了长期的构造演化;成矿物质多种来源,具深源特性和造山带物质的痕迹;矿石的物质组成复杂,矿物共生组合种类繁多;成矿围岩遭受了强烈的变质、蚀变作用,蚀变岩石类型较多,矿化多期次叠加;具有多成因性。Ore deposits in clustered ore deposit area in western Henan province are divided into three types and 6 sub types. Magmatic hydrothermally overprinted and reworked deposit is defined and its geo- logical background, structural transformation and metallogeny expounded. According to researches on ore mineral association, mineralization alteration characteristics and isotopic age data of Shanggong gold de- posit the magmatic hydrothermally overprinted and reworked deposit is characterized by old hosting rock, long tectonic evolution, milt ore material sources （from deep and orogenic belt）, complex ore materials, various mineral associations, and strong metamorphjism of the host rock, multi-alterations and altered rocks, multi-staged and overprinted mineralization and multi-genesis..

关 键 词：岩浆热液 叠加改造 构造转换 成矿背景 河南省 

分 类 号：P611.13[天文地球—矿床学]