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Title: Record of Permian Tethyan transgression in eastern India: A reappraisal of the Barren Measures Formation, West Bokaro Coalfield
Authors: Bhattacharya, Biplab
Banerjee P.P.
Published in: Marine and Petroleum Geology
Abstract: The Barren Measures Formation (middle Permian, ~271-260Ma), the non-coaliferous lithounit sandwitched between two major coal-bearing formations in the Indian Lower Gondwana succession, was earlier interpreted as continental fluvio-lacustrine deposits. The present contribution documents sedimentary attributes of marginal marine tide-wave interference from the Barren Measures Formation of eastern peninsular India, exposed along the Bokaro River section, West Bokaro Coalfield, Jharkhand. Tidalites, including various tidal bundle sequences with frequent reactivation surfaces (velocity asymmetry) and single/double mud drapes (pause planes), systematic arrangement of tidal beddings (flaser, wavy, lenticular) and tidal rhythmites with alternate sand-dominated and mud-dominated plane-laminated units, manifest sedimentation by open marine spring-neap-spring tidal cycles under diurnal inequalities in a semi-diurnal tidal system. The architecture of tidalites attests to sedimentation in shallow subtidal to intertidal flat facies, affected by intermittent strong to week reworking by open marine waves/storms. Wave reworking is manifested by wave ripples, combined-flow ripples and wave-generated tidal bundles. Their coexistence and gradation with tidalites indicate low-energy wave/storm interference with tidal currents in a sheltered, tide-dominated estuary, especially on tidal flats along estuary channel banks. Overall fining-up facies sequence, upward increase of prodeltaic mud over tide-wave led sediments, signify a sustained transgressive phase onlaping the estuary system in eastern peninsular India during middle Permian (Guadalupian). © 2015 Elsevier Ltd.
Citation: Marine and Petroleum Geology (2015), 67(): 170-179
Issue Date: 2015
Publisher: Elsevier Ltd
Keywords: Estuary
Lower Gondwana
Tethyan transgression
Tide-wave interaction
ISSN: 2648172
Author Scopus IDs: 8627465800
Author Affiliations: Bhattacharya, B., Department of Earth Sciences, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
Banerjee, P.P., NRD, West Bokaro Division, Tata Steel Limited, Ghato Tand, Ramgarh, Jharkhand, 825314, India
Funding Details: Mr. T Suresh Kumar, Chief (NRD) and Mr. P Srinivasa Rao, Chief Geologist (Coal) of TATA Steel Limited, Jamshedpur, are gratefully acknowledged for providing kind consent to PPB to carry out this work. This work constitutes a part of the Fast Track Research Scheme (SR/FTP/ES-170/2010) awarded to BB by the Department of Science and Technology (DST), Govt. of India. Authors are thankful to the anonymous reviewers for constructive suggestions. BB is grateful to Mr. Harshul Khandelwal and Mr. Subarna Das of IIT Roorkee for their sincere assistance in the field.
Corresponding Author: Bhattacharya, B.; Department of Earth Sciences, Indian Institute of Technology, RoorkeeIndia
Appears in Collections:Journal Publications [ES]

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