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Title: Late Archaean tidalites from western margin of Chitradurga greenstone belt, southern India
Authors: Bhattacharya H.N.
Bhattacharya, Biplab
Pal S.
Roy A.
Published in: Precambrian Research
Abstract: Tidalites are preserved within a metavolcano-sedimentary succession of the Late Archaean Bababudan Group (Dharwar Supergroup) along the western boundary of the NNW-SSE trending Chitradurga greenstone belt, West Dharwar Craton, southern India. These may represent the oldest record of tidal processes in peninsular India. Millimetre thick sand-mud alternations, bidirectional cross-strata, mudstone-draped sandy foresets, reactivation surfaces indicating time-velocity asymmetry, sigmoidal cross-strata and mudstone draped flaser/lenticular bedding are displayed by the sandstone mudstone heterolithic facies in the upper part of the Bababudan succession, together implying a tidal depositional system. Thick-thin pairs of rhythmic foreset bundles correspond to neap-spring tidal cycles within a semidiurnal tidal system. Development of the studied coastal sediments suggests formation of stable platform along the western margin of the late Archaean Chitradurga greenstone belt. © 2014 Elsevier B.V.
Citation: Precambrian Research (2015), 257(): 109-113
Issue Date: 2015
Publisher: Elsevier
Keywords: Neap-spring cycles
Precambrian supracrustals
Sandstone-mudstone heterolith
Tidal sedimentation
ISSN: 3019268
Author Scopus IDs: 6701313623
Author Affiliations: Bhattacharya, H.N., Department of Geology, Presidency University, 86/1, College Street, Kolkata, 700073, India
Bhattacharya, B., Department of Earth Sciences, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
Pal, S., Department of Geology, Durgapur Government College, Durgapur W.B., 713214, India
Roy, A., Department of Geology, Presidency University, 86/1, College Street, Kolkata, 700073, India
Funding Details: The authors are grateful to Department of Science and Technology, Government of India , for financial support (DST Major Research Project No. SR/S4/ES-473/2009). We are grateful to Dr. Daidu Fan, Tongji University and one anonymous reviewer for their constructive reviews.
Corresponding Author: Bhattacharya, H.N.; Department of Geology, Presidency University, 86/1, College Street, India
Appears in Collections:Journal Publications [ES]

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