Ichnology and sedimentary environment of Cretaceous redbeds in the Ruyang Basin, western Henan Province, China

Autores/as

  • Hu Bin Institute of Resources and Environment, Henan Polytechnic University Key Laboratory of Biogenic Traces and Sedimentary Mineral of Henan Province
  • Wang Changzheng Institute of Resources and Environment, Henan Polytechnic University
  • Wang Yuanyuan Institute of Resources and Environment, Henan Polytechnic University Key Laboratory of Biogenic Traces and Sedimentary Mineral of Henan Province

DOI:

https://doi.org/10.7203/sjp.29.2.17684

Palabras clave:

Ruyang Basin, alluvial fan, Cretaceous, trace fossils, China

Resumen

A sequence of terrestrial clastic redbeds of Cretaceous age is exposed in the Ruyang Basin of western Henan Province in China. The rocks consist of conglomerate, sandstone, siltstone and mudstone containing the ichnofossils Psilonichnus, Arenicolites, Palaeophycus, Scoyenia, Planolites, Skolithos and other burrows and rhizoliths. The beds also contain the dinosaur fossil Huanghetitan ruyangensis and Zhongyuansaurus luoyangensis. On the basis of the lithology, sedimentary structures and ichnofossils, it is suggested that the sedimentary environments of the Ruyang Basin during the Cretaceous were primarily alluvial fan in character including middle fan and fan edge subfacies. In this sedimentary setting, eight lithofacies types are distinguished, and two ichnoassemblages are recognized: (1) Scoyenia-Skolithos ichnoassemblage occcuring in braided fluvial deposits of an alluvial fan system, and (2) Psilonichnus-Palaeophycus ichnoassemblage occurring in shallow pond or lake deposits at the fan edge

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Publicado

2020-07-08

Cómo citar

Bin, H., Changzheng, W., & Yuanyuan, W. (2020). Ichnology and sedimentary environment of Cretaceous redbeds in the Ruyang Basin, western Henan Province, China. Spanish Journal of Palaeontology, 29(2), 151–164. https://doi.org/10.7203/sjp.29.2.17684
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