湘东南地幔柱对大规模成矿的控矿作用  

ORE-CONTROLLING ACTIVITY OF THE MANTLE PLUME FOR THE LARGE METALLOGENIC CENTRALIZED REGION IN SOUTHEASTERN HUNAN PROVINCE, CHINA

作　　者：贾大成[1] 胡瑞忠[2] 李东阳[3] 卢焱[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,长春130062 [2]中国科学院地球化学研究所矿床地球化学开放研究实验室,贵阳550002 [3]吉林省地质调查院,长春130061

出　　处：《地质与勘探》2004年第2期32-35,共4页Geology and Exploration

基　　金：国家杰出青年基金项目(编号:49925309);中国科学院创新工程项目(编号:KZCX2-102);中国科学院矿床地球化学开放实验室基金项目(编号:2002)联合资助。

摘　　要：湘东南是钨、锡、锑及铅锌、稀有、稀土矿床的成矿集中区。该区出露的玄武岩、与成矿有关的花岗岩和区域成矿作用是地幔柱构造环境的统一产物。湘东南地幔柱控制矿床与岩体的时空分布、区域成矿分带和成矿岩浆源区。湘东南地幔柱为成矿岩浆的熔融、分异演化和浅部就位提供了有利的热源和构造条件。地幔柱的发展演化阶段是大规模成矿得以保存的重要因素。There is a larger metallogenic centralized region in the southeastern Hunan province. In the region, basalts, granites related with ore deposits, and regional mineralization were the products of mantle plume tectonic setting. The mantle plume controlled the distribution of rocks and ore deposits, regional metallogenic zoning and metallogenic magma source in the southeastern Hunan province. The mantle plume provided benefiting heat source and structure conditions for the deep melting of metallogenic magma, differentiation and shallow emplacement. The development and revolution of the mantle plume is an important factor for ore deposit preserved.

关 键 词：地幔柱 成矿地质 控矿作用 构造环境 

分 类 号：P542[天文地球—构造地质学]