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A Note on Seismic Evidences during the Sedimentation of Panchet formation, Damodar Basin, Eastern India: Banspetali Nullah Revisited
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The Damodar basin of eastern India preserves both Lower and Upper Gondwana sediments. It was thought earlier that deposition of Panchet Formation ot Upper Gondwana took place in a tectonitally undisturbed condition. However present study reveals that some beds of Panchet Formation were seismically disturbed as they contain several horizons of soft sediment deformation structures like deformed cross beds, convolute laminae, mud dykes flame structures, pseudonodules chaotic bedding and drifted sediment blocks. The preservation of these penecontemporaneous deformation structures clearly suggests that earthquakes were responsible for the deformation and warrants further study on the tectonic history of the basin.
Keywords
Panchet Formation, Seismites, Soft Sediment, Deformation Structures, Damodar Basin.
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