Net subsidence and evolution of coal swamps in Early Permian coal measures of eastern India Gondwana basins using principal component analysis

Principal component analysis is applied to explain variation in net subsidence (i.e. total thickness) in the Karharbari and Barakar coal measures, respectively of Giridih and Korba coalfields of eastern India Gondwana basins. Results suggest that total thickness of sandstone and number of sandstone...

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Bibliographic Details
Published in:Journal of geosciences, Osaka City University Osaka City University, 2008, Vol.51, p.27-34
Main Author: Tewari, R C
Format: Article
Language:English
Online Access:Get full text
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Summary:Principal component analysis is applied to explain variation in net subsidence (i.e. total thickness) in the Karharbari and Barakar coal measures, respectively of Giridih and Korba coalfields of eastern India Gondwana basins. Results suggest that total thickness of sandstone and number of sandstone beds are largely responsible for variation in net subsidence in the Karharbari coal measures of Giridih, whereas total thickness of sandstone, number of sandstone and number of coal beds mainly control variation in net subsidence in the Barakar Formation of Korba coalfield. The greater degree of relationship between the total thickness of coal with total thickness of shale and total thickness of sandstone in the Karharbari implies the development of peat swamps in distal flood plains and also in abandoned channels. In the Barakar, the close association of total thickness of coal with total thickness and number of sandstone beds indicates formation of peat swamps largely in abandoned channels.
ISSN:0449-2560