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Abstract

Archaeology & Anthropology: Open Access

Correlation Problem in Quaternary Stratigraphy, Prehistrory and Archaeostratigraphy in India: Role of 75 Ka Toba Ash Bed Markers

  • Open or Close Acharyya SK*

    Department of Geological Sciences, Jadavpur University, India

    *Corresponding author: Acharyya SK, Emeritus Scientist, Department of Geological Sciences, Jadavpur University, Kolkata-32, India,

Submission: September 11, 2017; Published: November 29, 2017

DOI: 10.31031/AAOA.2017.01.000512

ISSN: 2577-1949
Volume1 Issue3

Abstract

Quaternary sediments in India mainly occur in river basins that host fossil bones, stone implements. Quaternary stratigraphy has significantly improved in correlation status after the recognition of the 75 ka Toba Ash Bed Marker. Older Quaternary sediments with reversed magnetic polarity have remained largely unstudied. Two gravel beds in Quaternary sequence can be biostratigraphically distinguished. The older is characterized by Mid Pleistocene fauna and it also includes the calvarium of Narmada man. A baby skull is human skull is also reported recently from Odai, Tamilnadu. The upper gravel and sand is characterized by extant vertebrate fauna and it also contains the Toba Ash Bed Marker. The gravel horizons are often undifferentiated due to non preservations of typical features.

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