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古地理学报 ›› 2001, Vol. 3 ›› Issue (3): 21-31. doi: 10.7605/gdlxb.2001.03.002

• 构造古地理学及古构造 • 上一篇    下一篇

天山-西昆仑地区沉积-构造演化史--新疆地学断面走廊域及邻区不同地体的沉积-构造演化

刘  训   

  1. 中国地质科学院地质研究所
  • 出版日期:2001-06-01 发布日期:2001-06-01
  • 作者简介:刘训，男，1939年生，1965年原北京地质学院地史教研室研究生毕业。现为中国地质科学院地质研究所研究员。长期从事沉积盆地分析、历史大地构造和区域地质研究。通讯地址：北京市西城区百万庄路26号，中国地质科学院地质研究所，邮编100037。

THE HISTORY OF SEDIMENTARY - TECTONIC EVOLUTION OF THE TIANSHAN TO WEST KUNLUNAREA,WEST CHINA--the Sedimentary-Tectonic Evolution of the Terranes in the Corridor of the Xinjiang Geotransect and its Adjacent Areas

Liu Xun   

  1. Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037
  • Online:2001-06-01 Published:2001-06-01
  • About author:Liu Xun, Male; born in 1939, took postgraduate course in the Geological College of Beijing in 1965. Now he is the research fellow of the Institute of Geology, Chinese Academy of Geological Sciences, and has been engaged in the study of regional geology, tectonics and analysis of sedimentary basins for a long time. Address: Institute of Geology, Chinese Academy of Geological Sciences, 26#, Baiwanzhuang Road, Beijing. 100037.

摘要：

通过新疆地学断面项目的研究，本文探讨了新疆南部天山-塔里木-昆仑山地区的沉积-构造演化史。本文以古生代及其以后的历史为重点，针对若干有争议的问题提出了初步的认识。本区的地壳演化历史可以分为4个不同的时期，总体来说，表现为一个地壳逐渐从活动趋于稳定、不同时期的古洋盆闭合和不同陆壳板块碰撞拼合的过程。古生代时以古亚洲洋的活动为主导因素，到古生代末，北方形成统一的古欧亚大陆。晚古生代至中生代时受南面特提斯洋活动所控制，随着特提斯洋的闭合及南侧陆块的碰撞而发生了一系列沉积-构造事件，包括古特提斯洋的闭合和康西瓦缝合带的形成，南侧羌塘、冈底斯和喜马拉雅等陆块的碰撞产生的不同效应，形成了本区现代的盆山构造面貌和丰富多彩的演化历史。

Abstract:

Based on the researches in the "Xinjiang Geotransect" project, the sedimentary-tectonic evolutionary history of the Tianshan-Tarim-Kunlun Mts. area in Southern Xinjiang was discussed in this paper. Here, the discussion is predominant in the history of Paleozoic and Meso-Cenozoic. About the history of the crustal evolution in the study area, four periods can be divided. Generally speaking, it is the process that the paleo-oceanic basin in different periods gradually closed, the different continental plates collised and amalgamated, took the crust of this area to become more stability. The main factors for the evolution in Paleozoic were the activities of the paleo-Asian oceanic basin. By the end of Paleozoic, the paleo-Eurasian continent formed on the north part of the corridor. The evolution in Late Paleozoic to Mesozoic is controlled by the activities of the Paleo-Tethys oceanic basin in the south. Following the closing of the Tethys ocean and the collisions of the continental blocks in the south, a series of sedimentary and tectonic events took place in this area, including the closing of the paleo-Tethys oceanic basin, the forming of the Kangxiwar suture zone and some responses by the collision of Qiangtang, Gangdise and Himalayan blocks in the south. All of these formed the recent features of basin-mountain tectonics and plenty mineral resources.