Paleozoic Accretionary Terranes in Northern Tianshan, NW China  

作　　者：舒良树 陈云棠 卢华复 印栋浩 

出　　处：《Chinese Journal Of Geochemistry》2000年第3期193-202,共10页中国地球化学学报

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina! (GrantNos .49772 15 1and 49832 0 40 );UniversityofOrleansFran

摘　　要：During the Paleozoic, the Northern Tianshan region of China in Central Asia consists of 7 allochthonous terranes which were situated in the ancient Sino\|Mongolian Ocean as volcanic arcs and splitted continental fragments. The tectonic framework was similar to that of Southwest Pacific today. In the Late Paleozoic, these terranes started mutual amalgamation to cause strong thrusting. At the end of Carboniferous, the Sino\|Mongolian ocean including several inter\|terrane small sea basins closed and these terranes accreted on the margins of the Siberian and Tarim continents. The 6 ophiolitic zones among the terranes recorded this collision event.During the Paleozoic, the Northern Tianshan region of China in Central Asia consists of 7 allochthonous terranes which were situated in the ancient Sino\|Mongolian Ocean as volcanic arcs and splitted continental fragments. The tectonic framework was similar to that of Southwest Pacific today. In the Late Paleozoic, these terranes started mutual amalgamation to cause strong thrusting. At the end of Carboniferous, the Sino\|Mongolian ocean including several inter\|terrane small sea basins closed and these terranes accreted on the margins of the Siberian and Tarim continents. The 6 ophiolitic zones among the terranes recorded this collision event.

关 键 词：古生代 岩层 天山地区 新疆 石炭纪 碰撞事件 

分 类 号：P59[天文地球—地球化学]