Faculty Member Profile

Dr. Dhiman Kumer Roy
Associate Professor
Geology and Mining
PhD
+8801779246902
dhimans14@yahoo.com; ddkroy@bu.ac.bd

Areas of Research
Sedimentary petrology and geochemistry, Provenance, Earth surface processes, Environmental change, Global Climate change, Depositional environment, Tectonic setting, Environmental pollution, Hydrogeology, Disaster.

Research experience
" Dhiman Roy is an assistant professor in the Department of Geology and Mining. His research interests are focused on understanding changes in the mineralogical and geochemical composition of the sediments under different environment and climate states using data from sediment archives. Dr. Dhiman is currently working on the petrological and geochemical composition of ancient and modern sediments in the Bengal basin, to elucidate the role of influencing factors that control the composition of sediments in relation to source rock compositions, weathering, climate, environment of deposition, tectonic, and sediment routing systems from source to sink. Post-depositional effects such as diagenesis are also evaluated.
" Research focuses on inorganic geochemical composition of sediments to infer past climatic and environmental changes in relation to global cooling and global warming, and synthesize key information to understand the impact of Icehouse to Greenhouse transition on the exosphere. He has developed an innovative element-element ratio proxy to characterize the transition of Icehouse to Greenhouse state (large scale climate change). In addition, I seek to document the role of Himalayan uplift, erosion and depositional processes, evolution of the Asian monsoon, basin wide correlation using sedimentary petrology and inorganic geochemical composition.
" Recently, he is also working on the disaster and water related issue in the coastal region of Bangladesh to alleviate the society from disaster and contaminated water for safe drinking water option.
Publications
1. Basak, S.B., Seddique, A.A., Roy, D.K. 2019. Combination of magetic susceptibility and density as a tool for investigating igneous rock: a model from Grenville Province, Huntsville, Canada. Rabindra Journal. 67 (01): 185-195.
2. Dutta, N., Roy, D.K., Paul. S. 2017. Practice of indigenous knowledge for community resilience to climate change in Wazirpur Upazila, Barisal, Bangladesh. Rajshahi University Journal of Environmental Science. 6: 98-110.
3. Roy, D.K., Rahim, M.A., Roy, U., Goswami. S., Zaman, A.K.M.M., Purevjav, N. 2017. Assessment of groundwater quality and associated hazard identification in the Betagi Paurashava, Barguna District, Bangladesh. Barisal University Journal Part 1. 4 (2): 361-376.
4. Goswami, S., Rahman, A.K.M. M., Fuad, M.I.M., Roy, D.K., Rahim, M.A. 2017. Groundwater quality assessment of Barisal City Corporation in Bangladesh. Barisal University Journal Part 1. 4 (2): 339-350.
5. Roy, D.K., Goswami, S., Ahmed, T., Saha., M.K., Emon, M.H., Rahim, M.A. 2017. Socio-Economic impacts of river bank erosion on Durgapasha Union in Bakerganj Upazila, Bangladesh. Barisal University Journal Part 1. 4(1): 165-183.
6. Rahman, M.H., Sattar, G.S., Roy, D.K. 2016. Air pollution in Rajshahi City Corporation, Bangladesh. Rajshahi University Journal of Environmental Science. 5: 97-104.
7. Biswas, R.K., Roy, D.K., Islam, A.R.M.T., Rahman, M.M., Ali, M.M. 2014. Assessment of drinking water related to arsenic and salinity hazard in Patuakhali district, Bangladesh. International Journal of Advanced Geosciences. 2(2): 82-85.
8. Roy, D.K., Roser, B.P. 2013. Geochemical evolution of the Tertiary succession of the NW shelf, Bengal basin, Bangladesh: Implications for provenance, paleoweathering and Himalayan erosion. Journal of Asian Erath Science, Special Issue, Evolving Asia. 78: 248-262.
9. Roy, D.K., Roser, B.P. 2013. Climatic control on the composition of Carboniferous-Permian Gondwana sediments Khalaspir basin, Bangladesh. Gondwana Research. 23: 1163-1171.
10. Purevjav, N., Ohira, H., Roy, D.K. 2013. Purevjav, N. Provenance and weathering as are control on the geochemical composition of the Devonian and Carboniferous sedimentary rocks in the Sudut area, Uvurkhangay Province, Mongolia. Strategic Technology (IFOST). 1: 517-520.
11. Purevjav, N., Genden, U., Purevjav, N., Roy, D.K. 2013. Stream sediment geochemistry of Erdenetsogt, Tsetserleg and Jargalant Formations in the Sudut Area, Uvurkhangai Province, Hangay Sub-basin, Central Mongolia. Mongolian Geoscientist. 9: 61-67.
12. Roy, D.K., Roser, B.P. 2012. Geochemistry of the Tertiary sequence in the Shahbajpur-1 well, Hatia trough, Bengal basin, Bangladesh: Provenance, source weathering and province affinity. Journal of Life and Earth Science. 7: 1-13.
13. Roy, D.K., Roser, B.P. 2011. Major and trace element analyses of Gondwana Group sediments from GDH-45, Khalaspir basin, Bangladesh. Geoscience Reports of Shimane University. 30: 25-30.
14. Roy, D.K., Roser, B.P. 2011. Major and trace element compositions of Tertiary sedimentary successions in the NW and SE Bengal basin, Bangladesh. Geoscience Reports of Shimane University. 30: 31-45.
15. Roy, M.K., Md. Karim, M.R., Roy, P.J., Roy, D.K., Nath, D. 2008Petrography, provenance and paleoclimate of the Barail Group of rocks as exposed along the Jaflong-Sangram-Tamabil-Naljhuri-Sreepur-Assampara road cut section, Northeastern Sylhet, Bangladesh, Gondwana Geological Magazine. 23 (1): 39-49.
16. Partha, P.J., Roy, M.K., Shome, D., Mahbub, M.A.A., Roy, D.K., Saha, S. 2008. Petrography of the Sylhet Limestone Formation, the Dauki River Section, Gwainghat, Northeastern Sylhet, Bangladesh. Geological Society of the India. 171: 724-730.
17. Roy, D.K., Rahman, M.M., Ahmed, S.S., Hossain, I., Akther, S. 2007. Geochemistry of sandstone-mudstone suites of the Tipam Sandstone Formation, Surma Basin, Bangladesh. Earth Evolution Sciences. 1: 21-31.
18. Rahman, M.M., Jahan, C.S., Mazumder, Q.H., Roy, D.K., Zaman, M.A.U. 2007. Groundwater Quality of Northwest Barind Area, Bangladesh, Bangladesh Geoscience Journal. 13: 47-61.
19. Partha, P.J., Roy, M.K., Roy, D.K., Rahman, M.M., Akther, S., Karim, R. 2006. Petrography and Mineralogy of the Kopili Formation in the Exposed Section of the Bengal Basin, Northeastern Sylhet, Bangladesh. Journal of Life and Earth Science. 2 (1): 57-65.
20. Adhikari D.K., Roy, M.K., Dutta, D.K., Roy, P.J., Roy, D.K., Malik, A.R., Alam, M.B.. 2006. Urban geology: A case study of Khulna City Corporation, Bangladesh. Journal of Life and Earth Science. 1(2): 17-29.
21. Roy, D.K., Rahman, M.M., Akther, S. 2006. Provenance of exposed Tipam Sandstone Formation, Surma Basin, Sylhet, Bangladesh. Journal of Life and Earth Science. 1(2): 35-42.
22. Roy, D.K., Roy, M.K., Islam, M.S., Rahman, M.A. 2006. Lithofacies and depositional environments of the Lower Tipam Sandstone in the Hari River section Jaintiapur, Sylhet, Bangladesh. Indian Journal of Landscape Systems and Ecological Studies. 29 (1): 34-46.
Thesis and Reports (Unpublished):
1. Roy, D.K. 2012. Geochemical evolution of NW shelf succession Bengal basin, Bangladesh in relation to provenance, climate, Himalayan tectonism and paleoenvironment. D.Sc Thesis, Geoscience Department, Shimane University, Japan. Advisor: Professor Dr. B.P. Roser (Retired).
2. Roy, D.K. 2009. Geochemical composition of Chittagong and Tripura Folded Belt (CTFB), Bangladesh in relation to provenance, weathering and tectonic setting. M.Sc. Thesis, Geoscience Department, Shimane University, Japan. Advisor: Professor Dr. B.P. Roser (Retired).
3. Roy, D.K. 2006. Geochemical and petrological characterization of the Tipam Sandstone Formation in the Hari River section, Jaintiapur, Sylhet District, Bangladesh. M.Sc. Thesis, Department of Geology and Mining, University of Rajshahi, Bangladesh. Advisor: Professor Dr. Syed Samsuddin Ahmed.
4. Roy, D.K. 2004. Depositional environments of the Lower Tipam Sandstone in the Hari River section, Lalakhal, Jaintiapur, Sylhet, Bangladesh. B.Sc. Thesis Project, Department of Geology and Mining, University of Rajshahi, Bangladesh. Advisor: Professor Dr. Mrinal Kanti Roy; Professor, Dr. Sultan-Ul-Islam; Professor Md. Abdur Rahman.

Administrative Experience:
1. Chairman (01 January 2015 - 31 December 2018)
Department of Geology and mining, University of Barisal, Bangladesh.
Awards
• Awarded a Japanese government Monbukagakusho Scholarship (Ministry of Education, Culture, Sports, Science and Technology- MEXT) from October, 2009 to September, 2012 for PhD study (Shimane University Special Program).
• Awarded a Japanese government Monbukagakusho Scholarship (Ministry of Education, Culture, Sports, Science and Technology- MEXT) from October, 2007 to September, 2009 for M.Sc. study (Shimane University Special Program).
• Awarded Gold Medal by the Rajshahi University, Bangladesh for B.Sc. level.
Research Projects
1. Title of Project: Integrating education with consumer behaviour relevant to energy efficiency and climate change at the Universities of Russia, Sri Lanka and Bangladesh" [BECK]
Funder: European Commission, CBHP
Value (in Lakhs): 864 BDT (BU value: 65 BDT).
Duration: Three years commencing from November 2018.
2. Title of Project: Investigation of groundwater quality characteristics and health risk assessment of Bagerhat District, Bangladesh.
Funder: Ministry of Education, Bangladesh.
Value (in Lakhs): 18 BDT
Duration: Three years commencing from January, 2020.
3. Title of Project: Effects of climate change on coastal groundwater systems in Rangabali Upazila, Patuakhali, Bangladesh.
Funder: University Grant Commission, Bangladesh.
Value (in Lakhs): 3 BDT
Duration: One year commencing from July, 2020.
4. Title of Project: Geochemical composition of Kuakata beach sand: Implication for Provenance and Weathering.
Funder: University Grant Commission, Bangladesh.
Value (in Lakhs): 0.4 BDT
Duration: One year.
5. Title of Project: Interaction between the rivers and aquifers and its impact on saline water distribution in Barisal Sadar Upazila and adjoining areas.
Funder: University Grant Commission, Bangladesh.
Value (in Lakhs): 1.28 BDT
Duration: One year.
6. Title of Project: Climate Change Using Elemental Model of Carboniferous-Permian sequence in borehole GDH-62, Dighipara Basin, Dinajpur, Bangladesh.
Funder: University Grant Commission, Bangladesh.
Value (in Lakhs): 0.75 BDT
Duration: One year.