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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Sedimentology, Stratigraphy and Diagenesis
Volume 12 - 2024 | doi: 10.3389/feart.2024.1433182

Depositional model of a bioherm based on factor analysis: a case study in western Beijing, China

Provisionally accepted
Hao Cheng Hao Cheng 1,2Zhenkui Jin Zhenkui Jin 1*Rukai Zhu Rukai Zhu 2*Jinyi Wang Jinyi Wang 1*Xiaoer Zhu Xiaoer Zhu 3*Baiqiang Li Baiqiang Li 4*Yanick Blaise Ketchaya Yanick Blaise Ketchaya 4*
  • 1 China University of Petroleum, Beijing, Beijing, China
  • 2 China National Petroleum Corporation, Beijing, Beijing Municipality, China
  • 3 China National Offshore Oil Corporation (China), Beijing, Beijing Municipality, China
  • 4 Anhui University of Science and Technology, Huainan, Anhui, China

The final, formatted version of the article will be published soon.

    Bioherms found in the Lower Zhangxia Formation, which is part of the Middle Cambrian Miaolingian, were discovered in the Xiaweidian Section of the Western Hills in Beijing (North China). The sequence of rock layers, arranged in order from bottom to top, consists of micritic oolitic limestones, flat-pebble conglomerates, laminated limestones (bioherm), shales, sparry oolitic limestones, and mud-ribboned limestones. Researchers have employed a range of techniques to analyze the geochemistry of these bioherms, including scanning electron microscopy (SEM), Xray diffraction (XRD), carbon-oxygen isotope analysis, and major and trace element analysis. To ensure the accuracy of the results, factor analysis methods were used to screen the data, identify the elements that best represented the characteristics of the sample, and yield the most reliable factors for analyzing the depositional environment and determining the depositional model. These results suggest that the Zhangxia Formation bioherm formed in the shallow-water environment of the open platform facies at the edge of the carbonate platform, which provides ideal conditions for the growth of microorganisms and the development of extensive bioherms during this time period. This study demonstrates the effectiveness of numerical analysis methods in reconstructing the depositional environment of bioherms. It expands the application of these methods in carbonate rock research and provides valuable insights for the exploration and development of carbonate reservoirs.

    Keywords: factor analysis, Depositional model, Bioherm, Cambrian, Zhangxia Formation, Beijing 1 Introduction

    Received: 15 May 2024; Accepted: 05 Nov 2024.

    Copyright: © 2024 Cheng, Jin, Zhu, Wang, Zhu, Li and Blaise Ketchaya. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Zhenkui Jin, China University of Petroleum, Beijing, Beijing, China
    Rukai Zhu, China National Petroleum Corporation, Beijing, Beijing Municipality, China
    Jinyi Wang, China University of Petroleum, Beijing, Beijing, China
    Xiaoer Zhu, China National Offshore Oil Corporation (China), Beijing, 100010, Beijing Municipality, China
    Baiqiang Li, Anhui University of Science and Technology, Huainan, 232001, Anhui, China
    Yanick Blaise Ketchaya, Anhui University of Science and Technology, Huainan, 232001, Anhui, China

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