天山古生代洋陆转化特点的几点思考  

Some thoughts on the characteristics of Paleozoic ocean- continent transition from Tianshan mountains

作　　者：夏林圻[1] 夏祖春[1] 徐学义[1] 李向民[1] 马中平[1] 王利社[1] 

机构地区：[1]西安地质矿产研究所,陕西西安710054

出　　处：《西北地质》2002年第4期9-20,共12页Northwestern Geology

基　　金：中国地质调查局国土资源大调查项目 (编号 :2 0 0 110 2 0 0 0 81)资助

摘　　要：本文简要评述了天山地区前寒武纪洋陆格局、古生代洋盆的开启与闭合的时限、古生代洋陆格局、下石炭统底部碰撞造山磨拉石发现的地质意义、以及石炭—二叠纪大规模裂谷岩浆作用形成的地球动力学背景等问题 。Based on recent field and in door researches and investigations, this paper briefly states and reviews on some issues on the characteristics of the Paleozoic ocean continent transition from Tianshan mountains such as the Precambrian ocean continental framework , opening and closing ages of the Paleozoic ocean, Paleozoic ocean continental framework , the discovery of collision orogenic mollasse formation in the bottom of Lower Carboniferous and its significance , and geodynamic background of formation of Carboniferous Permian large scale rift magmatism And then , some news thoughts about theseissues are put forward

关 键 词：天山 古生代 洋陆转化 大陆裂谷 磨拉石 地球动力学 岩浆作用 

分 类 号：P542[天文地球—构造地质学]