塔里木新元古代-古生代沉积盆地演化  

Evolution of Sedimentary Basins in Tarim during Neoproterozoic-Paleozoic

作　　者：邹亚锐 塔吉古丽[1] 邢作云[1] 徐增连[2] 唐婷婷[1] 郝奕玮 

机构地区：[1]中国地质大学地质调查研究院,湖北武汉430074 [2]中国地质大学地球科学学院,湖北武汉430074

出　　处：《地球科学（中国地质大学学报）》2014年第8期1200-1216,共17页Earth Science-Journal of China University of Geosciences

基　　金：中国地质调查局项目(No.1212010733802;12120113012500)

摘　　要：塔里木盆地位于中国西北新疆维吾尔自治区南部,夹持在天山与昆仑山褶皱带和阿尔金山之间,是一个长期发展形成的大型叠合盆地.在综合研究前人资料的基础上,通过对塔里木地区岩石地层、沉积建造的对比分析,划分出塔里木新元古代-古生代的被动陆缘、夭折裂谷、碳酸盐岩台地、碎屑岩陆表海、残余海盆、混积陆表海、陆内裂陷盆地、前陆盆地共8种沉积盆地类型,并分析盆地形成演化的大地构造环境:新元古代早期,塔里木进入稳定的盖层发展阶段;青白口纪发育裂谷和被动陆缘,南华纪-早震旦世发育夭折裂谷和大陆冰川;古生代主要发育碳酸盐岩台地、碎屑岩陆表海和混积陆表海;受北侧哈萨克斯坦-准噶尔板块碰撞的影响,南天山石炭纪洋盆于晚石炭世-早二叠世末俯冲消减;中二叠世始,塔里木大部分演变为前陆盆地.Tarim basin, located in southern Xinjiang Uygur Autonomous Region of Northwest China, held among the Tianshan,Kunlun and Altun fold belts,is a large,superimposed basin which has a long evolutional history.Based on the com-prehensive study of the previous results,we conduct a comparative study of lithostragraphy and sedimentary,and divide the Tarim area into 8 types of sedimentary basin during Neoproterozoic-Mesozoic,including passive continental margin,failed rift, carbonate platform,clastic epeiric sea,residual sea,mixed clastic-carbonate epeiric sea,inland graben basin,and foreland ba-sin.The tectonic environments of basin formation and evolution are analyzed in this paper：Early Neoproterozoic,Tarim turned into stable stage of cover development.During Qingbaikouan,rift and passive continental margin were developed.Nanhua-Early Sinian,mortality rift and continental glaciers were developed.Carbonate platform,clastic epeiric sea and clastic-carbonate epeir-ic sea mainly developed during Paleozoic.The collision between Tarim and Kazakhstan-Junggar plate led to later subduction of the southern Tianshan oceanic basin of Carboniferous at the Late Carboniferous-Early Permian.At the beginning of Middle Per-mian,most of the Tarim evolved to foreland basin.

关 键 词：塔里木盆地 沉积 构造 演化 

分 类 号：P534[天文地球—古生物学与地层学]