青海锡铁山碳质片岩型铅-锌矿床的矿化结构特征  

Mineralizing structural characteristics of the Xitieshan carbonaceous schist-host Pb-Zn deposit,Qinghai

作　　者：赵向东[1] 李峰[1] 坚润堂[1] 邹国富 

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]中国有色金属工业昆明勘察设计研究院,昆明650051

出　　处：《矿产与地质》2008年第5期405-411,共7页Mineral Resources and Geology

摘　　要：文章应用地质、地球化学分析,对锡铁山矿区新发现的(碳质)片岩型矿体的矿化结构、矿体类型及其典型元素分带特征进行综合研究,得出以下结论:锡铁山矿床具"双层结构",由大理岩型矿体和碳质片岩型矿体组成;碳质片岩型矿体主要赋存于滩间山群沉积岩组中上部,产出层位高于大理岩型矿体;碳质片岩型矿体的倒转型热水喷流沉积结构与含矿层倒转有关。研究表明,矿区找矿潜力巨大。Applying geological with geochemical analysis to studying mineralizing structure, orebodies types and zoning features of typical elements of （carbonaceous） schist-host orebodies which have been newly discovered in Xitieshan area, it has concluded that the Xitieshan deposit has ＂double layers structure＂, which is composed by marble-host orebodies and carbonaceous schist-host orebodies. The carbonaceous schist-host orebodies mainly occurred in middle-upper part of Tanjianshan Group sedimentary rocks with the occurring horizon higher than that of marble-host ones. The hydrothermal exhalative-sedimentary structure of carbonaceous schist-host ores is related to ore-bearing strata＇s inversion. The study has shown a great potential for prospecting in this ore area.

关 键 词：铅-锌矿床 双层矿体 喷流沉积结构 碳质片岩型矿体 锡铁山 青海 

分 类 号：P618.53[天文地球—矿床学] P618.54[天文地球—地质学]