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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6364
Title: Early Danian planktic foraminifera from Cretaceous-Tertiary intertrappean beds at Jhilmili, Chhindwara District, Madhya Pradesh, India
Authors: Keller G.
Khosla S.C.
Sharma R.
Khosla A.
Bajpai S.
Adatte T.
Published in: Journal of Foraminiferal Research
Abstract: The main Deccan volcanic province erupted mamily in terrestrial to lacustrine environments of late Maastrichtian to early Paleocene age, and lack age diagnostic fossils to accurately place the Cretaceous-Tertiary (K-T) boundary. As a result, the precise position of the K-T event within the volcanic province has remained speculative, and no realistic assessment of the biotic consequences of Deccan volcanism at K-T time has been possible. Here, we report the discovery of early Danian Zone P1a planktic foraminifera within lacustrine to brackish-marine ostracod assemblages near Jhilmili, Chhindwara District, India. These foraminiferal assemblages identify the K-T boundary in intertrappean sediments bracketed by basalt traps that are regionally correlative with C29R (Ambenali Formation) and the C29R-C29N transition (Mahalabeshwar Formation). The Jhilmili sequence is thus correlative with the shallow-marine, intertrappean Zone P1a assemblage and C29R and C29N of the lower and upper basalt traps exposed in Rajahmundry quarries. The presence of planktic foraminifera in predominantly terrestrial intertrappean sediments some 800 km from the nearest ocean suggests the presence of a seaway along the Narmada and Tapti rift zones with Jhilmili located at the eastern margin.
Citation: Journal of Foraminiferal Research (2009), 39(1): 40-55
URI: https://doi.org/10.2113/gsjfr.39.1.40
http://repository.iitr.ac.in/handle/123456789/6364
Issue Date: 2009
ISSN: 961191
Author Scopus IDs: 7201829659
7102678569
57209347974
7006604725
16214305000
7003446882
Author Affiliations: Keller, G., Department of Geosciences, Princeton University, Princeton, NJ 08544, United States
Khosla, S.C., Department of Geology, Mohanlal Sukhadia University, Udaipur 310 002, India
Sharma, R., Department of Earth Sciences, Indian Institute of Technology, Roorkee 247 667 Uttarakhand, India
Khosla, A., Department of Geology, Panjab University, Chandigarh-160014, India
Bajpai, S., Department of Earth Sciences, Indian Institute of Technology, Roorkee 247 667 Uttarakhand, India
Adatte, T., Geological and Paleontological Institute, University of Lausanne, Anthropole, CH-1015 Lausanne, Switzerland
Corresponding Author: Keller, G.; Department of Geosciences, Princeton University, Princeton, NJ 08544, United States; email: gkeller@princeton.edu
Appears in Collections:Journal Publications [ES]

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