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Bio; Raman Kumar Biswas  

PhD Students (Tohoku University, Japan Assistant Professor and Chairman (Ex.) Dept. of Disaster Resilience and Engineering Faculty of Disaster Management  Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh-8602.


2016 – Present; Ph. D.  Students, Tohoku University, Sendai, Japan.

Oct 2014-Sep 2016; M.S in Earth Science, Tohoku University, Sendai, Japan.

2005-2006; M.Sc. in Geology & Mining, Rajshahi University, Bangladesh

2002-2005; B.Sc. in Geology & Mining, Rajshahi University, Bangladesh


Mass Extinction and Paleo-climatic research using geochemical biomarker, Paleo evolutionary changes and causes of biosphere changes, Sedimentology, Marine environmental changes and its phenomenon. Geological hazardous events and its research, Past and recent extinction of the earth history and interested in Remote sensing, Ground water quality. Petroleum exploration using biomarker.


  1. Kaiho K., Saito R., Oba M., Ito K., Miyaji T., Biswas R., Tian L., Sano H., Shi Z., Takahashi S., Tong J., Liang L., Oba M., Nara F.W., Tsuchiya N., Chen Z.Q., (2016) Effects of soil erosion and anoxic–euxinic ocean in the Permian–Triassic marine crisis. Heliyon 2, 137.
  2. Saito, R., Kaiho, K., Oba, M., Tong, J., Chen, Z.Q., Takahashi, S., Chen, J., Tian, L. and Biswas, R.K., (2016) Secular changes in environmental stresses and eukaryotes during the Early Triassic to the early Middle Triassic. Palaeogeogr. Palaeoclimatol. Palaeoecol. 451, 35-45
  3. Kulatunga U; Gayan W; Dilanthi A; Parvez A and Biswas R.K.; Disaster Risk Reduction in Bangladesh 2012,World Construction Conferences; Colombo, Srilanka; 209-220pp
  4.  Biswas R.K.; Shamsuzzoha M;  Islam A.R.M.T; Suitability Assessment of some Groundwater samples for Irrigation of Shailakupa Upazila under Jhenaidah District.; Journal of the Patuakhali Science and Technology University.
  5.  Biswas R.K.; Roy  M.K. and Haque  K.I. ‘Assessment of ground water quality for drinking purposes in some parts of Jhenaidah District, Bangladesh’ International Journal of Geology, Earth and Environmental Sciences; Jaipur, India. 
  6. Biswas, R.K, Saito, R., Kaiho, and., Zhiqiang Shi, “Land ecosystem collapse followed by marine environmental stress spanning the Permian-Triassic mass extinction” Journal of Geochim. Cosmochim. Acta.
  7. Biswas. R.K.; Roy. M.K. and Roy. D.K. “Adaptive Strategies through Indigenous Knowledge in Agriculture Sector of Patuakhali District” in the Journal of Institute Bangladesh Studies, Rajshahi University, Bangladesh.

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