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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6022
Title: Early Permian transgressive–regressive cycles: Sequence stratigraphic reappraisal of the coal-bearing Barakar Formation, Raniganj Basin, India
Authors: Bhattacharya, Biplab
Bhattacharjee J.
Bandyopadhyay S.
Banerjee S.
Adhikari K.
Published in: Journal of Earth System Science
Abstract: The present research is an attempt to assess the Barakar Formation of the Raniganj Gondwana Basin, India, in the frame of fluvio-marine (estuarine) depositional systems using sequence stratigraphic elements. Analysis of predominant facies associations signify deposition in three sub-environments: (i) a river-dominated bay-head delta zone in the inner estuary, with transition from braided fluvial channels (FA-B1) to tide-affected meandering fluvial channels and flood plains (FA-B2) in the basal part of the succession; (ii) a mixed energy central basin zone, which consists of transitional fluvio-tidal channels (FA-B2), tidal flats, associated with tidal channels and bars (FA-B3) in the middle-upper part of the succession; and (iii) a wave-dominated outer estuary (coastal) zone (FA-B4 with FA-B3) in the upper part of the succession. Stacked progradational (P1, P2)–retrogradational (R1, R2) successions attest to one major base level fluctuation, leading to distinct transgressive–regressive (T–R) cycles with development of initial falling stage systems tract (FSST), followed by lowstand systems tract (LST) and successive transgressive systems tracts (TST-1 and TST-2). Shift in the depositional regime from regressive to transgressive estuarine system in the early Permian Barakar Formation is attributed to change in accommodation space caused by mutual interactions of (i) base level fluctuations in response to climatic amelioration and (ii) basinal tectonisms (exhumation/sagging) related to post-glacial isostatic adjustments in the riftogenic Gondwana basins. © 2018, Indian Academy of Sciences.
Citation: Journal of Earth System Science (2018), 127(2): -
URI: https://doi.org/10.1007/s12040-018-0922-7
http://repository.iitr.ac.in/handle/123456789/6022
Issue Date: 2018
Publisher: Springer
Keywords: estuary
Fluvio-marine
Gondwana
Permian
post-glacial transgression
sequence stratigraphy
ISSN: 23474327
Author Scopus IDs: 8627465800
57188666214
56216540700
55547103522
6701447562
Author Affiliations: Bhattacharya, B., Department of Earth Sciences, Indian Institute of Technology, Roorkee, 247 667, India
Bhattacharjee, J., Department of Earth Sciences, Indian Institute of Technology, Roorkee, 247 667, India
Bandyopadhyay, S., Department of Geology, Hooghly Mohsin College, Chinsurah, Hooghly, 712 101, India
Banerjee, S., Department of Geology, Hooghly Mohsin College, Chinsurah, Hooghly, 712 101, India, Department of Earth and Environmental Studies, National Institute of Technology, Durgapur, 713 209, India
Adhikari, K., Department of Earth and Environmental Studies, National Institute of Technology, Durgapur, 713 209, India
Funding Details: Authors are grateful to the Mine Authorities of Ramnagar–Chapatoria open pit mines for necessary permissions to visit the mines. B Bhat-tacharya received financial support from Department of Science and Technology (DST)-SERB in the form of FAST TRACK Research Project (No. SR/FTP/ES-170/2010) for this work. All the authors acknowledge their respective departments for the infrastructural help. Authors are also thankful to both the reviewers for constructive suggestions, which enhanced the clarity of the paper.
Corresponding Author: Bhattacharya, B.; Department of Earth Sciences, Indian Institute of TechnologyIndia; email: bbgeofes@iitr.ac.in
Appears in Collections:Journal Publications [ES]

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