A Field-scale Overview of Facies Architectures and Depositional Environment Integrating Core and Geophysical Log Data: Study from a Marginal Gondwana Basin, India
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Karanpura field is the western most member of the E-W trending Damodar Valley basin, belonging to Indian Gondwana sedimentation. This paper aims to provide a field-scale depositional model of Permian Barakar Formation from Karanpura field in order to enlarge the knowledge of stratigraphic and facies architecture. The study reviews the findings from extensively available cores. Four major facies were defined, which represented a fluvial depositional environment. Observations from core analyses were integrated with high resolution geophysical log data to understand the stacking pattern and depositional cyclicity of Barakar Formation. The lateral and vertical distributions of the facies associations were highlighted by well correlations, which established major fining upwards depositional cycles in the area. The depositional model has been interpreted on a regional scale.
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Authors express their sincere gratitude to Dr. Prakash Kumar Singh, Associate Editor, Journal of the Geological Society of India for his timely communication and valuable suggestions. Authors are grateful to the two reviewers for their detailed review and suggestions, which improved the manuscript. JD is thankful to his previous employer Coal India Limited. SS thanks his employer Geologix Limited for giving the access of Coal characterization, XSection modules of GEO Suite of software, which were instrumental in correlations and various geophysical log based analyses. This work has only used all the previously published works (and dataset) that JD and SS did and aimed to summarize their previous findings here but with a focus on the depositional environment of Gondwana basin.
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