Lignites of Kutch,western India: Dinoflagellate biostratigraphy and palaeoclimate |
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| Institution: | 1. UMR CNRS 6118 Géosciences Rennes, Université Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France;2. Department of Geography and Earth Sciences, Aberystwyth University, Penglais, Aberystwyth SY23 3DB, UK;3. School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK;1. University of Bonn, Steinmann-Institute, Section Palaeontology, Nussallee 8, 53115 Bonn, Germany;2. Stuttgart State Museum of Natural History, Rosenstein 1, 70191 Stuttgart, Germany;3. Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany;4. Humboldt University of Berlin, Faculty of Mathematics and Natural Sciences, Geography Department, Rudower Chaussee 16, 12489 Berlin, Germany;5. University of Gdańsk, Department of Invertebrate Zoology and Parasitology, Wita Stwosza 59, 80-308 Gdańsk, Poland;6. Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow, India |
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| Abstract: | The Eocene epoch in the Indian subcontinent was marked by widespread deposition of lignite and coal. While several of these deposits formed during the Early Eocene, corresponding to Early Eocene hyperthermal events, the lignites of Kutch in western India formed later during the Middle Eocene. An integrated biostratigraphy based on dinoflagellates and foraminifera assigns a Bartonian age to the succession, which likely corresponds to the time of the Middle Eocene warming. The spores, pollen, dinoflagellates and foraminifera suggest a restricted marine, near shore depositional environment adjacent to tropical rainforest. The lignites of Kutch suggest high precipitation during or just preceding the warm climate of the Middle Eocene. |
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| Keywords: | Dinoflagellate Foraminifera Palynology Kutch Eocene palaeoclimate Dinoflagellés Foraminifères Palynologie Kutch Paléoclimat de l’Éocène |
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