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    • Keywords


      Deccan Volcanic Province; stratigraphy of Western Ghats; Giant Plagioclase Basalt; GPB; chemostratigraphy; lithostratigraphy.

    • Abstract


      The Western Ghats sections of the Deccan Volcanic Province (DVP) are considered the ‘type area’ for most of the established models of its eruptive history and age. The prevailing chemostratigraphy and lithostratigraphy of the Western DVP based on the study of these sections are largely comparable but have subtle conceptual and practical differences. Although based on higher resolution data, the latter failed to get widespread acceptance. Horizons of giant phenocryst basalts (GPBs) have been used in both stratigraphic classifications as marker horizons. They can be traced across many tens of kilometers andserve as efficient and easy-to-map horizons during field mapping. We demonstrate the lateral continuity of the GPB horizons across the Western DVP to reiterate their relevance in the stratigraphic classification of the otherwise uniform pile of basaltic flows. We propose a unified stratigraphy for this subprovince, which reconciles existing chemostratigraphic and lithostratigraphic classifications.

    • Author Affiliations



      1. Department of Earth Sciences, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
      2. Advanced Center for Water Resources Development and Management (ACWADAM), Kshipra Society, Pune 411 058, India.
    • Dates

  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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