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Article Navigation >  Acta Sedimentologica Sinica  > 2009  >  27(2): 254-264

QI Yongan. Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan[J]. Acta Sedimentologica Sinica, 2009, 27(2): 254-264.
Citation: QI Yongan. Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan[J]. Acta Sedimentologica Sinica, 2009, 27(2): 254-264.
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Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan

  • Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000

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  • Corresponding author: QI Yongan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-04-10
  • The meandering fluvial deposits, preserved in Middle Triassic Youfangzhuang Formation of Jiyuan Area, western Henan，comprise mainly fine sandstone, siltstone and silty mudstone interbedded with conglomerate and coarse sandstone. According to Miall’s lithofacies classification, seventeen lithofacies can be recognized from Youfangzhuang Formation, the main lithofacies are Sts, Sps, Sws, Fh, Fr, Fc,Ch and Cr， which can be aligned to seven lithofacies associations. Based on the features of lithofacies types and sedimentary structures, the fluvial sedimentary facies of Youfangzhang Fm. can be subdivided into three sublithofacies and eight microlitofacies. The fluvial channel sinuosity(P) is 0.64, the fluvial deposits belong to lowsinuosity meandering fluvial deposits.
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2009-04-10

Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan

  • Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000
    Corresponding author: QI Yongan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-04-10

Abstract: The meandering fluvial deposits, preserved in Middle Triassic Youfangzhuang Formation of Jiyuan Area, western Henan，comprise mainly fine sandstone, siltstone and silty mudstone interbedded with conglomerate and coarse sandstone. According to Miall’s lithofacies classification, seventeen lithofacies can be recognized from Youfangzhuang Formation, the main lithofacies are Sts, Sps, Sws, Fh, Fr, Fc,Ch and Cr， which can be aligned to seven lithofacies associations. Based on the features of lithofacies types and sedimentary structures, the fluvial sedimentary facies of Youfangzhang Fm. can be subdivided into three sublithofacies and eight microlitofacies. The fluvial channel sinuosity(P) is 0.64, the fluvial deposits belong to lowsinuosity meandering fluvial deposits.

QI Yongan. Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan[J]. Acta Sedimentologica Sinica, 2009, 27(2): 254-264.
Citation: QI Yongan. Lithofacies and Sedimentary Facies from Middle Triassic Fluvial Deposits of Youfangzhuang Formation, Jiyuan Area, Western Henan[J]. Acta Sedimentologica Sinica, 2009, 27(2): 254-264.
shu

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