Evolution of Sedimentary Basins in Tarim during Neoproterozoic-Paleozoic
Zou Yarui
Ta Jiguli
Xing Zuoyun
Xu Zenglian
Tang Tingting
Hao Yiwei
Abstract：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.
Keywords：Tarim basinsedimentologytectonicsevolution
Publication Date：2014-01-01
Pages：17( 1200-1216 )