• 责任者：Yin Feng (Exploration Southern Company ; SINOPEC ; Chengdu 610041 ; China) ; Yang Fengli
• 刊名：Earth Science
• 出版年：2013
• 卷期：38(5)
• 关键词：大陆边缘 ; continental margins ; 盆地分析 ; basin analysis ; 扬子地区 ; Yangtze Region
• 页码：p.1053-1064
• 图表：8 illus., 44 refs.
• 分类号：0300
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

     As the second oil and gas pioneering project progresses,marine strata has become the focus in the field of oil and gas exploration.Lower Yangtze has deposited thick marine strata,and its prototype basin has experienced structural transformation of multi-period times.This paper discusses the boundary under the Yangtze,aiming to conduct a systematic analysis of the entire system.Based on the＂TSM＂strategy of basin prototype analysis on the basin tectonics,deformation and sedimentary,the residual strata distribution from Late Sinian to Middle Ordovician in the Lower Yangtze and the sedimentary filling during the process are analyzed.The results indicate that the Lower Yangtze has evolved passive continental margin in the Late SinianMiddle Ordovician,which is characterized mainly by siliceous classic sediments,carbonate sediment and synsedimentary faults,etc..During this period,carbonate platform developed into trim platform.The platform had lateral growth phenomenon and the sediment of tongue protruding input to the sea basin.Jiangnan fault,a typical synsedimentary fault,shows that the source material of the sediment basin has always been transported from northwest to southeast by the internal one-way transportation in the Lower Yangtze.All these indicate that it was mature passive continental from the Late Sinian to Middle Ordovician.