R-mode factor analysis of lithologic variables from cyclically deposited Late Paleozoic Barakar sediments in Singrauli Gondwana sub-basin,Peninsular India |
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| Authors: | ZA Khan RC Tewari |
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| Institution: | 1. Directorate of Geology & Mining, Khanij Bhawan, Lucknow 226 001, India;2. Department of Geology, Sri J.N.P.G. College, Lucknow 226 001, India;1. Department of Geology, One Bear Place #97354, Baylor University, Waco, TX 76798-7354, USA;2. Department of Earth and Environmental Science, University of Illinois at Chicago, Chicago, IL 60607-7059, USA;1. ENSNP, UMR 7324 CITERES, 9 rue de la Chocolaterie, 41000 Blois, France;2. INRA, UMR 1201 DYNAFOR, 24 chemin de Borde Rouge, Auzeville-Tolosane CS 52627, 31326 Castanet-Tolosan Cedex, France;1. Ghent Fertility and Stem Cell Team, Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium;2. Center for Medical Genetics, Ghent University and Ghent University Hospital, Ghent, Belgium;3. Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium;1. CIBIO, InBIO – Research Network in Biodiversity and Evolutionary Biology, Universidade do Porto, Campus de Vairão, Rua Padre Armando Quintas, 4485-661 Vairão, Portugal;2. Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal;3. INSERM, UMR892, Université de Nantes, Nantes, France;4. UMIB/UP – Unidade Multidisciplinar de Investigação Biomédica/Universidade do Porto, Porto, Portugal;5. SaBio – IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain;7. Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (CESPU), Gandra, Portugal;1. Department of Industrial and Systems Engineering, National University of Singapore, Singapore;2. School of Reliability and Systems Engineering, Beihang University, Beijing, China |
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| Abstract: | The quantitative relationships between lithological variables from the Late Paleozoic coal bearing cycles have been investigated using factor analysis in an attempt to analyze net subsidence during the deposition of these cycles. The results suggest that there are only two non-zero eigenvalues in varimax matrix which indicate that the hyper ellipsoid enclosing the data points have seven axes of zero length and exists an ordinary two dimensional ellipsoid. The data points can be located with reference to two mutually perpendicular axes. Loading on thickness of sandstones, thickness of shale, number of sandstone beds and number of shale beds are extremely high on RF-I and low on the other factor. This would lead to the interpretation that a balance was maintained throughout the Barakar sedimentation between the rate of deposition and the rate of subsidence. On the other hand, loading on number of coal beds is high on ‘ suggesting that the development of peat swamps (coal beds) is not a normal feature during the Late Paleozoic Barakar sedimentation in this Gondwana sub-basin. |
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