... towards excellence in science

An Autonomous Institution, Under the Ministry of Education, Government of India

Tarun Kumar Dalai

Associate Professor
Dept: Earth Sciences (DES)
E-mail: dalai [at]
Personal homepage: Click Here

Research Interest:

Application of trace elements and isotopes in study of: Continental erosion and weathering, global climate change, evolution of ocean chemistry in response to global events, accretion of extraterrestrial matter, tracing the effect anthropogenic activity through time. Cycling of isotopes, trace elements and nutrients in estuaries

Academic Background:

  1. Ph. D. (Geology), Physical Research Laboratory (M S University, Baroda), 2003
  2. M Tech. with Honors (Applied Geology), University of Roorkee, 1996
  3. B Sc. with Honors (Geology), Ravenshaw College (Utkal University), 1993


  1. Associate Professor, IISER Kolkata (current)
  2. Assistant Professor, IIT Kharagpur (2007 - 2010)
  3. Visiting Faculty, IIT Kharagpur (2006 - 2007)
  4. Scientist Fellow, National Institute of Oceanography, Goa (2005 - 2006)
  5. Post Doctoral Fellow, University of Hawaii, Honolulu (2004 - 2005)
  6. Post Doctoral Fellow, Ocean Research Institute, Tokyo (2002 - 2004)

Awards and Honors:

  1. JSPS Invitation Fellowship from JSPS Japan (2023)
  2. Mary Sears Visitor Award from Woods Hole Oceanographic Institution (2018)
  3. JSPS Invitation Fellowship from JSPS (2009)
  4. INSA Young Scientist in Earth Sciences from Indian National Science Academy (2005)
  5. JSPS Post Doctoral Fellowship from JSPS (2002)

Selected Publications:

  1. Tiwari, Rakesh K; Dalai, Tarun K; Samanta, Saumik; Rahaman, Waliur; Singh, Sunil K and Horner, Tristan J. 2022."Geochemistry of Uranium in the Ganga (Hooghly) River estuary, India: The role of processes in the water column and below the sediment-water interface." Marine Chemistry, 247, 104173
  2. Samanta, Saumik; Dalai, Tarun K; Tiwari, Sameer K and Rai, Santosh K. 2018."Quantification of source contributions to the water budgets of the Ganga (Hooghly) River estuary, India." Marine Chemistry, 207, 42-54
  3. Samanta*, Saumik and Dalai, Tarun K. 2018."Massive production of heavy metals in the Ganga (Hooghly) River estuary, India: Global importance of solute-particle interaction and enhanced metal fluxes to the oceans." Geochimica et Cosmochimica Acta, 228, 243-258
  4. Samanta*, Saumik; Amrutha*, K; Dalai, Tarun K and Kumar, Sanjeev. 2017."Heavy metals in the Ganga (Hooghly) River estuary sediment column: evaluation of association, geochemical cycling and anthropogenic enrichment." Environmental Earth Sciences, 76, 140
  5. Samanta*, Saumik and Dalai, Tarun K. 2016."Dissolved and particulate Barium in the Ganga (Hooghly) River estuary, India: Solute-particle interactions and the enhanced dissolved flux to the oceans." Geochimica et Cosmochimica Acta , 195, 1-28

All Publications: Click Here