Latest Permian palynomorphs from Jharia Coalfield,Damodar Basin,India and their potential for biostratigraphic correlation |
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| Institution: | 1. University of Padova, Department of Geosciences, via Gradenigo 6, 35131 Padova (PD), Italy;2. Museum of Nature of South Tyrol, via Bottai 1, 39100 Bozen/Bolzano (BZ), Italy;3. Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität, Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Strasse 10, 800333 München, Germany;4. Institute of Geosciences and Earth Resource, C.N.R., Via Gradenigo 6, 35131 Padova (PD), Italy;1. Jadavpur University, Kolkata, India;2. Massachusetts Institute of Technology, Cambridge, MA, United States;3. University of Rochester, Rochester, NY, United States;1. CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500007, India;2. Centre for Tectonics, Resources and Exploration, Department of Earth Sciences, University of Adelaide, SA 5005, Australia;3. School of Earth Science and Resources, China University of Geosciences, Beijing, China;4. Department of Studies in Geology, Karnatak University, Pavate Nagar, Dharwad 580007, India;5. CSIR-National Institute of Oceanography, Regional Centre, Visakhapatnam 530017, India;6. Department of Geology, Andhra University, Visakhapatnam 530003, India;1. Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721 302, India;2. Department of Earth and Space Sciences, University of California Los Angeles, 595 Charles Young Drive East, Los Angeles, CA 90095, USA;3. Environmental Studies, Institute of Arctic and Alpine Research (INSTAAR), University of Colorado Boulder, 4001 Discovery Drive, Boulder, CO 80303, USA;4. Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology Cambridge, MA 02139, USA;5. Department of Earth Sciences, Indian Institute of Technology, Roorkee, Uttarakhand 247 667, India |
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| Abstract: | The objective of the present work is to palynologically date the samples collected from Jharia Coalfield. The samples have been collected from an outcrop section exposed across the Damodar river near NH 32 enroute from Bokaro to Dhanbad (23° 43′06.93″N and 86° 12′06.90″E) near Jharia Coalfield of Damodar Basin. Palynological analysis of the samples has revealed that the palynomorph assemblage is characterized by high incidence of Densipollenites spp. in association with dominance of striate bisaccates chiefly Striatopodocarpites spp. and Faunipollenites spp. The other stratigraphically significant taxa recorded in the section are Guttulapollenites hannonicus, Klausipollenites schaubergeri, Alisporites spp. Falcisporites spp. and Lunatisporites spp. On the basis of the palynocomposition the section has been assigned a latest Permian age. Age determination for the section has been inferred by comparison with coeval assemblages from previous Gondwana studies from India and across Gondwana which were compared to the biostratigraphically dated palynological records from Australia (oldest APP6 Zone) as it is one of the few areas in Gondwana where the palynological records have been calibrated against adequately dated marine invertebrate zones. However, comparison with the westernmost portion of Gondwana was difficult due to its mid latitudinal position (c. 20°S) during the Lopingian (late Permian) which lead to an early transition from coal-bearing strata to red-bed and evaporitic deposits in some parts. |
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| Keywords: | Palynology Biostratigraphy Correlation Jharia Coalfield Damodar Basin India Palynologie Permien terminal Corrélation biostratigraphique Dépôts houillers de Jharia Bassin de Damodar |
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