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Geoscience ›› 2017, Vol. 31 ›› Issue (01): 92-101.

• Stratigraphy • Previous Articles     Next Articles

Evolution Characteristics of Cambrian Stromatolites in Western Henan and the Coupling Relationship with Metazoan

CHANG Yuguang1,2(), BAI Wanbei1,2, WANG Min1,2   

  1. 1. Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo, Henan 454000, China
    2. Key Laboratory of Biogenic Traces & Sedimentary Minerals of Henan Province, Jiaozuo, Henan 454000, China
  • Received:2016-03-21 Revised:2016-07-20 Online:2017-02-10 Published:2017-03-16

Abstract:

As the construction of microbial mats, stromatolites recorded a large number of palaeoclimate and palaeogeographic information. Eighteen layers of stromatolites are found in the Cambrian settings in western Henan. Based on macro and micro characteristics, the Cambrian stromatolites can be divided into 6 types of assemblages according to the abundance(thickness) and the diversity(morphological types). The episodic evolution is discussed as microbiolite-stromatolites and microbolite-limestone evolution scene according to the micro laminations, microbial fossils and microbial mats, combined with the characteristics of sedimentology and biological fossil of stromatolites in each type assemblages. According to the density relationship between the microbolites and trace fossils in Middle Cambrian limestone, the relationship between the stromatolite-microbolite evolution and metazoan is not simple waxing and waning but dynamic-balance coupling in the whole Cambrian.

Key words: stromatolite, evolution, metazoan, coupling relationship, Cambrian

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