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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6336
Title: Lignite deposits of the Kutch Basin, western India: Carbon isotopic and palynological signatures of the early Eocene hyperthermal event ETM2
Authors: Agrawal S.
Verma P.
Rao M.R.
Garg R.
Kapur V.V.
Bajpai, Sunil
Published in: Journal of Asian Earth Sciences
Abstract: This study presents new results of combined palynological and stable carbon isotope (?13C) investigations carried out in the well known lignite sequence at Panandhro, District Kutch, in the Gujarat state of western India. Dinoflagellate cysts and associated spore-pollen assemblage assign an early Eocene (Ypresian) age to the lignitic succession at Panandhro. Furthermore, a pronounced negative Carbon Isotope Excursion (CIE) of about 2.7‰, correlated to the Second Eocene Thermal Maximum (53.7 Ma), a globally recognized hyperthermal event, was discovered in the middle part of the succession, consistent with the palynological constraints. This is the first record of an Eocene hyperthermal event (ETM2) from the Kutch Basin. Our data has regional implications for the age of the lignitic sequences across western India as it demonstrates that there is no significant age difference between the lignite deposits of the Kutch and Cambay basins. Our results also support a Lutetian age for the previously described vertebrate fossils, including whales, from the Panandhro mine section. © 2017 Elsevier Ltd
Citation: Journal of Asian Earth Sciences (2017), 146(): 296-303
URI: https://doi.org/10.1016/j.jseaes.2017.04.030
http://repository.iitr.ac.in/handle/123456789/6336
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Carbon isotope excursion
Dinoflagellate cysts
Eocene hyperthermal
Kutch Basin
Spore-pollen
ISSN: 13679120
Author Scopus IDs: 49061030700
37162407200
55466209000
57191367272
7103095260
16214305000
Author Affiliations: Agrawal, S., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Verma, P., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Rao, M.R., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Garg, R., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Kapur, V.V., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Bajpai, S., Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow, Uttar Pradesh 226007, India
Funding Details: The authors would like to thankfully acknowledge the use of infrastructural facilities at Birbal Sahni Institute of Palaeosciences (BSIP) where this investigation was entirely carried out (BSIP/RDCC/2016-17/46). One of the authors (VVK) acknowledges financial support from Department of Science and Technology (DST), New Delhi (Project no. SR/FTP/ES-49/2012). We acknowledge Gujarat Mineral Development Corporation (GMDC), Gujarat for giving permission for field work and thank the staff of Panandhro Lignite Mine, Gujarat for the logistic support. We thank the Associate Editor, Dr. Zhonghui Liu, and the two anonymous reviewers for their constructive comments and suggestions.
Corresponding Author: Agrawal, S.; Birbal Sahni Institute of Palaeosciences, 53, University Road, India; email: as.shail@gmail.com
Appears in Collections:Journal Publications [ES]

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