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Article Navigation >  Acta Sedimentologica Sinica  > 2009  >  27(2): 319-325

XIAO Chuantao. A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area[J]. Acta Sedimentologica Sinica, 2009, 27(2): 319-325.
Citation: XIAO Chuantao. A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area[J]. Acta Sedimentologica Sinica, 2009, 27(2): 319-325.
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A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area

  • Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University) ,Ministry of Education, Jingzhou Hubei 434023

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  • Corresponding author: XIAO Chuantao
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-04-10
  • The authors firstly make a study on Palaeoecology in upwelling phase region of Middle Permian in the Lower Yangtze area. The Qixia Formation is divided into five sedimentary ages, and the organic communities are recognized in this paper, at the same time, compositions, structures and ecologic environments are also discussed. Based on the analysis of characters of community association and deposition, two kinds of biofacies are recognized, namely benthonic biofacies of shelf glacis and planktonic biofacies of shelf basin, the relationship between biofacies and intensity of upwelling current is elucidated in the paper. Finally, the analysis of the control of upwelling current on paleoecologic features demonstrates that the intensity of upwelling current corresponds to abundance of organic community and discords from diversity.
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2009-04-10

A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area

  • Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University) ,Ministry of Education, Jingzhou Hubei 434023
    Corresponding author: XIAO Chuantao
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-04-10

Abstract: The authors firstly make a study on Palaeoecology in upwelling phase region of Middle Permian in the Lower Yangtze area. The Qixia Formation is divided into five sedimentary ages, and the organic communities are recognized in this paper, at the same time, compositions, structures and ecologic environments are also discussed. Based on the analysis of characters of community association and deposition, two kinds of biofacies are recognized, namely benthonic biofacies of shelf glacis and planktonic biofacies of shelf basin, the relationship between biofacies and intensity of upwelling current is elucidated in the paper. Finally, the analysis of the control of upwelling current on paleoecologic features demonstrates that the intensity of upwelling current corresponds to abundance of organic community and discords from diversity.

XIAO Chuantao. A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area[J]. Acta Sedimentologica Sinica, 2009, 27(2): 319-325.
Citation: XIAO Chuantao. A Study on Palaeoecology in Upwelling Phase Region of Middle Permian in the Lower Yangtze Area[J]. Acta Sedimentologica Sinica, 2009, 27(2): 319-325.
shu

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