• Petrographic observations suggestive of microbial mats from Rampur Shale and Bijaigarh Shale, Vindhyan basin, India

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Microbial mat; wavy laminae; black shales; pyrite; teeth and socket structures

    • Abstract


      Petrographic observations of two Vindhyan black shales (Rampur Shale of the Semri Group and Bijaigarh Shale of the Kaimur Group) revealed the following features:


      These features are indirect evidence of microbial mat colonization during the Proterozoic. The microbial mats probably fixed carbon at the sediment surface, stabilized sediment and recycled organic matter and were the primary producers, unlike during the Phanerozoic time.

    • Author Affiliations


      S Sur1 J Schieber2 S Banerjee3

      1. Department of Geology and Geophysics, The University of Oklahoma, 100 East Boyd St., SEC Suite 810, Norman, OK - 73019, USA
      2. Department of Geological Sciences, Indiana University, 1001 E 10th St., Bloomington, IN - 47405, USA
      3. Department of Earth Sciences, Indian Institute of Technology Bombay, Mumbai - 400 076, India
    • Dates

  • Journal of Earth System Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.