相山矿田沙洲铀矿床围岩蚀变地球化学特征  

THE WALL ROCK ALTERATION AND ITS GEOCHEMICAL CHARACTERISTICS OF THE SHAZHOU DEPOSIT IN XIANGSHAN URANIUM ORE-FIELD

作　　者：曹小兵[1] 吕古贤[2] 胡宝群[3] 郑光高[1] 姚宏鑫[1] 梁东[4] 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]中国地质科学院地质力学研究所,北京100081 [3]东华理工大学,江西抚州344000 [4]中国冶金地质总局新疆地质勘查院,乌鲁木齐830000

出　　处：《地质力学学报》2012年第4期389-400,共12页Journal of Geomechanics

基　　金：中国核工业集团公司重点专项"相山矿田构造体系构建与铀成矿作用研究"

摘　　要：江西相山铀矿田沙洲铀矿床的矿体严格受断裂控制,围岩蚀变分带非常明显。对沙洲铀矿床围岩蚀变的地球化学特征进行的研究表明,沙洲矿床从矿石到围岩的化学成分具有明显的变化,这些化学成分的变化与蚀变过程中物质的带入带出是密切相关的。通过对全部样品进行R型聚类分析,确定矿床成矿元素组合为U、W、HREE、Th、Zn、Zr、Mo、Pb,这些元素可作为铀成矿预测标志。研究成果在一定程度上充实和丰富了沙洲铀矿床的成因认识。The ore body of Shazhou deposit in Jiangxi Province is strictly controlled by faults and its wall rock alteration zoning characteristics is very apparent. This paper introduces the geochemical characteristics of the wall rock alteration. The results of whole-rock analysis of Shazhou deposit show that the chemical composition of the ore body is very different from the surrounding rock and the differences are relevant with the migration of chemical elements in the course of alteration. The combinations of metallogenetic elements are U, W, HREE, Th, Zn, Zr, Mo, Pb based on Rmode cluster analysis of all the rock samples and these elements can serve as the criteria for U ore prospecting in the region.

关 键 词：沙洲矿床 围岩蚀变 元素相关性 地球化学特征 

分 类 号：P614[天文地球—矿床学] P619.14[天文地球—地质学]