Abstract
This communication reports the occurrence of an ash layer intercalated within the late Quaternary alluvial succession of the Madhumati River, a tributary of the lower Narmada River. Petrographic, morphological and chemical details of glass shards and pumice fragments have formed the basis of this study. The ash has been correlated with the Youngest Toba Tuff. The finding of ash layer interbedded in Quaternary alluvial sequences of western Indian continental margin is significant, as ash being datable material, a near precise time-controlled stratigraphy can be interpreted for the Quaternary sediments of western India. The distant volcanic source of this ash requires a fresh re-assessment of ash volume and palaeoclimatic interpretations.
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Raj, R. Occurrence of volcanic ash in the Quaternary alluvial deposits, lower Narmada basin, western India. J Earth Syst Sci 117, 41–48 (2008). https://doi.org/10.1007/s12040-008-0011-4
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DOI: https://doi.org/10.1007/s12040-008-0011-4