Journal
SEDIMENTARY GEOLOGY
Volume 223, Issue 3-4, Pages 380-389Publisher
ELSEVIER
DOI: 10.1016/j.sedgeo.2009.12.002
Keywords
Permo-Carboniferous; Talchir Formation; Ice-marginal shelf; Tide-storm interactions; Soft-sediment deformations; Glacioisostasy
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Funding
- University Grants Commission (UGC) [F.PSW/005/05-06 (ERO)]
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Permo-Carboniferous Talchir Formation, Talchir Coalbasin, India, records sedimentation during a phase of climatic amelioration in an ice-marginal storm-affected shelf. Evidences of subtidal processes are preserved only under thick mud drapes deposited during waning storm phases. Various soft-sediment deformation structures in some sandstone/siltstone-mudstone interbeds, like syn-sedimentary faults, deformed laminations, sand-silt flows, convolute laminations and various flame structures, suggest liquefaction and fluidization of the beds due to passage of syn-depositional seismic shocks. In the Late Paleozoic ice-marginal shelf, such earthquake tremors could be generated by crustal movements in response to glacioisostatic adjustments of the basin floor. (C) 2009 Elsevier B.V. All rights reserved.
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