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Sedimentary Paleogeography and Geological Background in the Pukou Stage of Late Cretaceous Period in the Lower Yangtze Area

BAI Yun-feng1,2,CHENG Ri-hui2,KONG Qing-ying2,3,TANG Hua-feng2,CUI Kun-ning2,4,LIU Peng5   

  1. 1.Faculty of Earth Resources,China University of Geosciences, Wuhan 430074，China;2.College of Earth Sciences,Jilin University，Changchun 130061，China;3.Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249，China;4.Exploration and Development Research Institute of Daqing Oilfield Limited Company,Daqing,Heilongjiang 163721,China;5.Zhejiang Taida Engineering Consultion Co.Ltd,Hangzhou 310007,China
  • Received:2006-10-18 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
  • Contact: BAI Yun-feng

Abstract: The sedimentary rocks formed in Pukou stage of Late Cretaceous period are distributed widely in the Lower Yangtze area. There occur different rock assembles. Remnant rocks in the southern zone are thin and fine, while in the northern zone thick and coarse. The sedimentary facies includes alluvial fan, fan-delta, offshore lake, shallow lake and deep lake facies. The sedimentary basin was rebuilt by the Nanxiang movement and stage Ⅰ,Ⅳ,Ⅴ of Yanshan movement. The evolution of palaeogeography in this region took place under the background of subduction of the Kula-Pacific plate in NNW direction.

Key words: Lower Yangtze area, Pukou stage, sedimentary palaeogeography

CLC Number: 

  • P531
[1] Xu Wenli，Zheng Rongcai，Yan Xue，Wen Huaguo，Cui Cui. Trace and Rare Earthelement Geochemistry of the Early Paleozoic Black Shales in the Lower Yangtze Area and Its Geological Significances [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1108-1122.
[2] HU Jian-wu, CHEN Jian-ping, ZHU Peng-fei. Study on Oil Geological Anomalies of Lower Palaeozoic in the North Edge of the Middle and Lower Yangtze Area Based on the Evidence Weight Method [J]. J4, 2007, 37(3): 458-0462.
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