Abstract
In case of autocyclic sedimentation, direct relationship exists between net thickness of strata and number of coal cycles. Many of the coal basins including coal bearing Gondwana basins of India are good examples of autocyclic sedimentation, in which the cyclicity is attributed to intrabasinal differential subsidence of the basin floor. In the present work an attempt has been made to quantify the intrabasinal subsidence in a part of the Barakar Formation of the Talchir Gondwana basin. Eight undisturbed intervals were delineated in the Barakar stratigraphy. During different phases of sedimentation, different parts of the study area subsided with varying magnitudes. The areas of maximum subsidence accommodated thicker sediment column in comparison to the areas of slow subsidence rate.
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Hota, R.N. Coal correlation and intrabasinal differential subsidence — A case study from the Barakar Formation of Talchir Gondwana Basin, Orissa. J Geol Soc India 75, 403–410 (2010). https://doi.org/10.1007/s12594-010-0036-6
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DOI: https://doi.org/10.1007/s12594-010-0036-6