康滇地轴新元古代成矿作用与罗迪尼亚超大陆  

Neoproterozoic metallogenesis in Xikang-Yunnan axis and its relationship to Rodinia supercontinent

作　　者：王红军[1] 李巨初[1] 薛钧月[1] 

机构地区：[1]成都理工大学,四川成都610059

出　　处：《世界核地质科学》2009年第2期81-86,共6页World Nuclear Geoscience

摘　　要：康滇地轴在元古代时期形成了大量的金属矿床,研究表明,该时期的金属矿床形成与晋宁运动密切相关。近几年许多研究数据显示,康滇地轴在元古代地层中所形成的铜、铁、金和铀矿床大多集中在700～900Ma之间,与罗迪尼亚超大陆事件发生的时间一致。该时期的碰撞构造环境、花岗岩侵入以及沉积盆地的形成都与陆内板块俯冲作用和伸展作用关系密切。试图从同位素地质年代学、沉积-构造环境方面,探讨该时期的金属成矿作用对板块构造地质事件的响应,并探讨铀成矿作用与板块运动的关系。During Proterozoic, a large number of metal deposits formed in Xikang-Yunnan axis. The studies show that the formation of metallic ore deposit is closely related to Jinning Movement in this period. In recent years many data show that most metallic ore deposits in Xikang-Yunnan axis formed between 700-900 Ma, occurred in the same time with Rodinia supercontinent incident. The structural collision, granite intrusion and formation of sedimentary basin are believed to be closely related to intraplate subduction and extension. The authors discuss the relationship of mineralization with Rodinia supercontinent through isotope geochronology and sedimentary environment and the relationship between uranium mineralization and Rodinia supercontinent incident.

关 键 词：康滇地轴 元古代罗迪尼亚超大陆 金属成矿作用 铀矿化 

分 类 号：P619.14[天文地球—矿床学] P598[天文地球—地质学]