Title Prof. First Name ASHUTOSH Last Name SINGH
Designation Professor
Department Department of Geology
Email
Webpage
Phone.no 9971814780
Employement Info
Employee Type Nature Of Employment
Teaching Permanent
Educational Qualifications
Degree/Certification Name Institution Year of Completion
Ph.D. - Geology Banaras Hindu University 2006
Research Supervision Overview
PhD Scholars Supervised PhD Degrees Awarded Theses Submitted
0 2 0
Research Publications
Title of Article Type of Publication Name of Journal ISSN Journal Volume Year Link to Article DOI (Digital Object Identifier)
(2022) Plio-Pleistocene planktic foraminiferal biochronology of ODP site 762B, Exmouth Plateau, Southeast Indian Ocean v. 52, no. 4, p. 248–263, October 2022. Research Papers in Peer Reviewed Journals Journal of Foraminiferal Research, USA) 52 https://cushmanfoundation.org/PersonifyEbusiness/Publications/Journal-of-Foraminiferal-Research https://doi.org/10.2113/gsjfr.52.4.248
Diachronism in Late Neogene-Quaternary planktic foraminiferal events in Northern and Eastern Indian Ocean: Paleoceanographic implications Research Papers in Peer Reviewed Journals Journal of Palaeontological Society of India 66 http://palaeontologicalsociety.in/publication.php http://palaeontologicalsociety.in/publication.php
Late Neogene –Quaternary planktic foraminiferal biostratigraphy and biochronology from ODP Site 807A, Ontong Java Plateau, Western Equatorial Pacific. Research Papers in Peer Reviewed Journals Journal of Foraminiferal Research, USA) 50 https://doi.org/10.2113/gsjfr.50.2.111

Research Projects
Project Title Project Type Year Of Sanction Outcome/Output Duration
Late Neogene-Quaternary multiproxy records of El Nino variability: Implications on the tropical Indian Ocean, Paleoclimate and Paleoceanography. Major 2020 a) During the Late Miocene,there appears a dominance of El Nino Like Condition affecting the WPWP as the shoaling of Thermocline is indicated by increase in abundance of Thermocline Species which becomes more than 50 percent of the total assemblage. A simultaneous decrease in Oligotrophic group is also observed during this interval. b) During Early Pliocene the mixed layer group (warm) shows high abundance indicating the expanded mixed layer and depressed Thermocline in the WPWP.This might have been caused by closing of the Indonesian Seaway during Early Pliocene. c) During Late Pliocene there is a decine in the Mixed Layer group and this is coincident with the El Nino like conditions. This is also a time of reduced strength of Leeuwin Current. d) Five intervals in northward migration of Antarctic Polar Front has been detected during Quaternary in the Southeast Indian Ocean. These intervals at 0.05Ma, 0.2 Ma, 0.45 Ma, 0.7 Ma and 1.2 Ma represent increased strength of WAC and Antarctic Ice Cap expansion. These intervals also represent weak Leeuwin Current due to lowered sea level and the resultant reduction in ITF. e) The weakening of the Leeuwin current would affect the sea surface temperature in the Indian Ocean as the Indonesian throughflow generally warms the Indian Ocean; thus, these cold intervals could probably be the intervals of considerable lowering of SST in the Indian Ocean and would have influenced Indian Monsoonal intensity. f) The amplitude of glacial-interglacial intervals after the Mid-Pleistocene transition shows a gradual increase. g) We propose that the weakening of the Leeuwin Current would enhance Antarctic Ice Sheet expansion and create positive feedback to further cooling by reducing the poleward heat supply. Ongoing since 03-02-2020 (5 years, 4 months, 21 days)
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