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Tathagata Roy Choudhury

Dr Tathagata Roy Choudhury

Postdoctoral fellow
Name: Tathagata Roy Choudhury
Location: C1 Lab 433 Auckland Park Kingsway Campus
Department of Geology Postdoctoral Fellows  Staff Members

Contact Details:

Email: rchoudhury@uj.ac.za

About Dr Tathagata Roy Choudhury

Dr. Tathagata Roy Choudhury is a postdoctoral fellow at the Department of Geology, University of Johannesburg, APK campus. He studied Geology (B.Sc.) at the Presidency College, Kolkata, affiliated to Calcutta University, and has studied Applied Geology during his M.Sc. at the Presidency University, Kolkata. Dr. Roy Choudhury was awarded his Ph.D. from the Indian Institute of Technology, Bombay, in February 2022, where he studied the sedimentology and geochemistry of authigenic clay minerals forming throughout the geologic past. His doctoral research work involved the identification and characterization of authigenic clay mineral-rich deposits of the Paleogene sedimentary basins in western India and establishing a link between the warm climatic intervals of the past and the abundance of authigenic clay mineral formation and their composition. He has published several articles during his doctoral research. His Ph.D. thesis, titled ‘The formation of glauconite in relation to warming events’ has secured him a prestigious “Naik and Rastogi Award for Excellence in Ph.D. Research” for the year 2020-22. After finishing his Ph.D., Dr. Roy Choudhury was awarded the distinguished ‘National Post-Doctoral Fellowship’ (NPDF) by the Science and Engineering Research Board, Department of Science and Technology, Govt. of India, where he has worked on the application of authigenic clay mineral formation and its chemistry to recognize the marine fluxes of certain important elements.

Current Research Interests

Dr. Roy Choudhury is currently working on the understanding of the origin of organic carbon within the Witwatersrand Basin associated with gold mineralisation. In addition to that, Dr. Roy Choudhury is also interested in high precision in-situ mineral chemical analysis using electron microprobe and LA-ICPMS to characterize the authigenic clay mineral formation during the Archean time.

Publications
  • Roy Choudhury, T., Srimani, S., Mondal, I., Chakrabarty, A., Banerjee, S., Sarkar, S., 2024. Berthierine authigenesis as grain pseudomorph? A new insight from the early Maastrichtian Kallankurichchi Formation, India. Applied Clay Science 249, 107255, https://doi.org/10.1016/j.clay.2024.107255.
  • Roy Choudhury, T., Khanolkar, S., Banerjee S., 2022. Glauconite authigenesis during the warm climatic events of Paleogene: Case studies from shallow marine sections of Western India. Global and Planetary Changes 214, 103857. https://doi.org/10.1016/j.gloplacha.2022.103857.
  • Roy Choudhury, T., Banerjee, S., Khanolkar, S., Saraswati, P.K., Meena, S. S., 2021. Glauconite authigenesis during the onset of the Paleocene-Eocene Thermal Maximum: A case study from the Khuiala Formation in Jaisalmer Basin, India. Palaeogeography Palaeoclimatology Palaeoecology 571, 110388, https://doi.org/10.1016/j.palaeo.2021.110388.
  • Roy Choudhury, T.; Banerjee, S.; Khanolkar, S.; Meena, S.S., 2022. Paleoenvironmental Conditions during the Paleocene– Eocene Transition Imprinted within the Glauconitic Giral Member of the Barmer Basin, India. Minerals 12, 56. https://doi.org/10.3390/min12010056.
  • Roy Choudhury, T., Singh, P., Chakraborty, A., Banerjee, S., 2023. Authigenic Fe Mineralization in Shallow to Marginal Marine Environments: A Case Study from the Late Paleocene—Early Eocene Cambay Shale Formation. Minerals 13, 646. https://doi.org/10.3390/min13050646
  • Roy Choudhury, T., Raju, P.V., Shaikh, T., Banerjee, S., 2022. An Assessment of Alternate Fertilizer Potential of Glauconite Deposits in India using Simple Beneficiation Methods. Journal of the Geological Society of India 98, 181–184. https://doi.org/10.1007/s12594-022-1956-7
  • Banerjee, S., Roy Choudhury, T., Saraswati, P.K., Khanolkar, S., 2020. The formation of authigenic deposits during Palaeogene warm climatic intervals: A review. Journal of Palaeogeography 9, 27, https://doi.org/10.1186/s42501-020-00076-8.
  • Khanolkar, S., Roy Choudhury, T., Saraswati, P.K., Banerjee, S., 2021. Late Paleocene-Early Eocene Foraminiferal Assemblage and Carbon Isotope Excursion Indicating Hyperthermal Events in Paleotropical Succession of Northwestern India. Journal of Foraminiferal Research 51, 4–13. https://doi.org/10.2113/gsjfr.51.1.4
  • Mandal, S., Roy Choudhury, T., Das, A., Sarkar, S., Banerjee, S., 2022. Shallow marine glauconitization during the Proterozoic in response to intrabasinal tectonics: A study from the Proterozoic Lower Bhander Sandstone, Central India. Precambrian Research 372, 106596. https://doi.org/10.1016/j.precamres.2022.106596
  • Das, M., Dasgupta, S., Roy Choudhury, T., D’souza, R., Banerjee, S., 2024. Impact of early Eocene (Ypresian) warming events on ichnological assemblage of the Naredi Formation, western Kutch (Kachchh) Basin of Gujarat, India. Palaeogeography Palaeoclimatology Palaeoecology 639, 112063, https://doi.org/10.1016/j.palaeo.2024.112063
  • Singh, P., Banerjee, S., Roy Choudhury, T., Bhattacharya, S., Pande, K., 2023. Distinguishing celadonite from glauconite for environmental interpretations: a review. Journal of Palaeogeography 12, 179–194. https://doi.org/10.1016/j.jop.2023.02.001
  • Tounekti, A., Boukhalfa, K., Roy Choudhury, T., Soussi, M., Banerjee, S., 2021. Global and local factors behind the authigenesis of Fe-silicates (Glauconite/Chamosite) in Miocene strata of Northern Tunisia. Journal of African Earth Sciences 184, 104342. https://doi.org/10.1016/j.jafrearsci.2021.104342
  • Jafarzadeh, M., Roy Choudhury, T., Taheri, A., Banerjee, S., Jafarian, A., 2020. Glauconite within Albian-Cenomanian Aitamir Formation, Kopet-Dagh Basin, northeastern Iran: Origin and implications for Cretaceous seawater. Arabian Journal of Geosciences 13, 1–14. https://doi.org/10.1007/s12517-020-05920-8
  • Banerjee, S., Farouk, S., Nagm, E., Roy Choudhury, T., Meena, S.S., 2019. High Mg-glauconite in Campanian Duwi Formation of Abu Tartur Plateau, Egypt and its implications. Journal of African Earth Sciences 156, 12–25. https://doi.org/10.1016/j.jafrearsci.2019.05.001
  • Mandal, S., Banerjee, S., Sarkar, S., Mondal, I., Roy Choudhury, T., 2020. Origin and sequence stratigraphic implications of high- alumina glauconite within the Lower Quartzite, Vindhyan Supergroup. Marine and Petroleum Geology 112, 104040. https://doi.org/10.1016/j.marpetgeo.2019.104040