Late Pleistocene Relative Sea-Level Changes from Saurashtra, West Coast of India

Abstract

The fluvial systems of Saurashtra, Gujarat, India have archived signatures of sea-level stands for the Late Quaternary Period. Based on geomorphology, sedimentology and optical dating, the lower reaches of Noli river in southwestern Saurashtra reveal the presence of marine, fluvially reworked and aeolian forms of miliolite. Optical chronology permits us to extend the age range of fluvially reworked miliolites from 75 (as previously believed) to 114 ka. The fluvial sequence of southwestern Saurashtra has responded to sea-level changes through meandering. Presence of aeolian miliolites dated to 23 ka suggests regional aridity during the time of their deposition and preservation. Marine notches in Diu mark Middle Holocene high sea-level stand and their preservation implies active tectonism in the region.

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

“…In last few years, considerable progress has been made towards Quaternary terrestrial sedimentation and palaeoclimatic reconstruction (Raj et al, 2015;Sridhar et al, 2016;Sridhar and Chamyal, 2018;Khonde et al, 2017a, b;Prizomwala et al, 2018). Contribution have also been made on calcrete profilling (Srivastava and Basand, 2019), palaeosol geochemistry and nature, occurrence, lithological and depositional set-up of Youngest Toba Tuff (YRR) ash (Srivastava and Singh, 2019b) that are preserved in Quaternary alluvial sediments of Purna basin, Central India.…”