北祁连山古海底火山作用与成矿  

The Paleosubmarine Volcanism and Mineralization in North Qilian Mountains

作　　者：夏林圻[1] 夏祖春[1] 任有祥[1] 徐学义[1] 彭礼贵[1] 李文渊[1] 杨合群[1] 李智佩[1] 赵东宏[1] 宋忠宝[1] 李向民[1] 

机构地区：[1]中国地质科学院西安地质矿产研究所

出　　处：《地球学报（中国地质科学院院报）》1999年第3期259-264,共6页Acta Geoscientia Sinica

基　　金：自然科学基金

摘　　要：概要介绍了北祁连山造山带造山之前的构造火山岩浆演化历史、成矿类型和成矿背景条件。文章指出：在北祁连山早古生代洋盆开合过程中，相伴发生的大规模海相火山作用和受海底热液循环体系制约的块状硫化物成矿作用，是该造山带地质历史发展中两个最鲜明的特色，也是该区地质研究中两个最为关键且互相关联的应当给以特别关注的领域。This paper makes an approach to the history of tectono_magmatic evolution,the types and backguounds of mineralization prior to the orogenic period of north Qilian Mountains. The authors point out that during the process of Paleozoic ocean basin opening and closing,the large scale marine volcanism and the formtion of massive sulfide deposits controlled by sea floor hydrothermal circulation systems seemed to be two prominent features in the geological develping history of the orogenic belt,and were also two most important aspects related to each other.Hence,they should be given special attention in the geological study of the region.

关 键 词：古海底 火山作用 块状硫化物矿床 矿床成矿 

分 类 号：P738.5[天文地球—海洋地质] P611[天文地球—海洋科学]