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Article Navigation >  Acta Sedimentologica Sinica  > 2007  >  25(3): 372-379

QI Yongan. Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province[J]. Acta Sedimentologica Sinica, 2007, 25(3): 372-379.
Citation: QI Yongan. Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province[J]. Acta Sedimentologica Sinica, 2007, 25(3): 372-379.
shu

Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province

  • Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003

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  • Corresponding author: QI Yongan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-06-10
  • Abundant trace fossils are preserved in the alternation of purple and yellow greenish sandstones and mudstones which are formed in littoral and very shallow lake environments in the lower part of Middle Triassic Youfangzhuang Formation, Jiyuan Region, western Henan Province. Six ichnofabrics are found in highenergy zone of lake margin sandstones, they include: Porphyritic bioturbation ichnofabric, Skolithos isp.Planolites montanus ichnofabric,Skolithos verticalis ichnofabric, Planolites beverleyensis ichnofabric,Skolithos isp. Ichnofabric and Palaeophycus annulatus ichnofabric，and can be assigned to Skolithos ichnofacies；three ichnofabrics of Skolithos linearis ichnofabric、Taenidium barrette ichnofabric and rizoliths ichnofabric are recognized from middle and lower energy zone of very shallow lacustrine siltstones and mudstones, they belong to Scoyenia ichnofacies.
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Publishing history
  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2007-06-10

Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province

  • Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003
    Corresponding author: QI Yongan
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-06-10

Abstract: Abundant trace fossils are preserved in the alternation of purple and yellow greenish sandstones and mudstones which are formed in littoral and very shallow lake environments in the lower part of Middle Triassic Youfangzhuang Formation, Jiyuan Region, western Henan Province. Six ichnofabrics are found in highenergy zone of lake margin sandstones, they include: Porphyritic bioturbation ichnofabric, Skolithos isp.Planolites montanus ichnofabric,Skolithos verticalis ichnofabric, Planolites beverleyensis ichnofabric,Skolithos isp. Ichnofabric and Palaeophycus annulatus ichnofabric，and can be assigned to Skolithos ichnofacies；three ichnofabrics of Skolithos linearis ichnofabric、Taenidium barrette ichnofabric and rizoliths ichnofabric are recognized from middle and lower energy zone of very shallow lacustrine siltstones and mudstones, they belong to Scoyenia ichnofacies.

QI Yongan. Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province[J]. Acta Sedimentologica Sinica, 2007, 25(3): 372-379.
Citation: QI Yongan. Ichnofabrics and Their Environmental Interpretation from Middle Triassic Youfangzhuang Formation, Jiyuan Region, Western Henan Province[J]. Acta Sedimentologica Sinica, 2007, 25(3): 372-379.
shu

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