Sedimentary Characteristics and Palaeogeography Evolution in the Late Permian of Middle Yangtze Area

详细信息   

• 责任者：Wan Qiu (School of Resources and Environmental Engineering ; Hefei University of Technology ; Hefei 230009 ; China) ; Li Shuangying
• 刊名：Chinese Journal of Geology
• 出版年：2011
• 卷期：46(2)
• 关键词：晚二叠世 ; Upper Permian ; 沉积作用 ; sedimentation ; 岩相古地理 ; lithofacies paleogeography ; 扬子地区 ; Yangtze Region
• 页码：p.336-349
• 图表：8 illus., 29 refs.
• 分类号：1200
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

摘要

By use of profile measuring, lithofacies and sedimentary facies analysis in the middle Yangtze, Late Permian mainly developed open platform, shelf and basin, Wujiapingian developed shallow marine sediments, deep-water basin range is small, Changxing developed platform and basin facies, deep-water basin range is expanding. Sedimentary of the Late Permian is controlled by the activities of the south Qinling sea, an obvious sedimentary facies differentiation occurred during Late Permian, which is controlled by basin evolution. Palaeogeographic evolution show that the northern margin of the middle Yangtze Wujiapingian is deep basin, in the main middle Yangtze craton open platform developed, western Hubei trough is an isolated basin; Changxingian transgression intensified and reach a climax in late Changxingian,the northern margin of the middle Yangtze is deep basin and the scope further expand, the Yangtze craton come into craton margin basin.