Dr. Tomson J Kallukalam Ph.D.

Scientist E & Group Head, Solid Earth Research Group (SERG)

Email : tomson[dot]jk[at]ncess[dot]gov[dot]in

Phone(Off) : 0471-2511621

Phone(Res) :

Fax : 0471-2442280

In Peer Reviewed Journals:

  1. Petrological, geochemical and geochronological evolution of massif type charnockite from the Eastern Ghats Province, India: Implications on the regional tectonics of the Rayner-Eastern Ghats orogeny. AK Mondal, S Bose, JA Dev, JK Tomson, N Sorcar, S Mukherjee (2023) Precambrian Research 387;
  2. Petrography, geochemistry and detrital zircon geochronology of the Srisailam Quartzite Formation, Cuddapah Basin, India: Implications for depositional age, correlation and provenance. S Mukherjee, P Das, G Ghosh, S Bose, JA Dev, K Das, JK Tomson (2023) Precambrian Research 387;
  3. Neoproterozoic Mafic Magmatism in Nagercoil Block, Southern India and Its Implications on the Gondwana Collisional Orogeny. S Sajna, JK Tomson, JA Dev, N Sorcar, TV Kumar (2023) Minerals ;
  4. Phase equilibrium modelling and zircon-monazite geochronology of HT-UHT granulites from Kambam ultrahigh-temperature belt, south India. J Amal Dev, N Sorcar, S Mukherjee, JK Tomson (2022) International Geology Review;
  5. Timing of UHT metamorphism and cooling in south Indian granulites: New PTt results from a sapphirine granulite. JA Dev, JK Tomson, N Sorcar, KA Francis (2022) Precambrian Research 371;
  6. Combined U-Pb/Hf isotopic studies and phase equilibrium modelling of HT-UHT metapelites from Kambam ultrahigh-temperature belt, south India: Constraints on tectonothermal history of the terrane. JA Dev, JK Tomson, N Sorcar, V Nandakumar (2021) Lithos;
  7. Characterization of multiple episodes of melt generation from lower crust during Archaean using amphibole composition. KB Joshi, N Sorcar, NC Pant, V Nandakumar, T Ahmad, JK Tomson (2021) Episodes Journal of International Geoscience 44 (4), 443-466
  8. Mantle deformation beneath the Western Ghats, India: Insights from core-refracted shear wave splitting analysis C Sribin, BP Rao, MR Kumar, JK Tomson (2021) Journal of Asian Earth Sciences;
  9. Geochemical and isotopic studies of potassic granite from the western Dharwar Craton, southern India: Implications for crustal reworking in the Neoarchean. S Sebastian, R Bhutani, S Balakrishnan, JK Tomson, AD Shukla (2021) Geological Journal;
  10. Corrigendum to “Characterization of partial melting events in garnet-cordierite gneiss from the Kerala Khondalite Belt, India”[Geosci. Front. 11 (2020), 597-611] N Sorcar, KB Joshi, EP Oliveira, JK Tomson, V Nandakumar, Geoscience Frontiers 12 (2), 693-694
  11. Detection of soil pipes through remote sensing and electrical resistivity method: Insight from southern Western Ghats, India. M Joshi, PR Prasobh, S Rajappan, BP Rao, A Gond, A Misra, K Eldhose, V Nandakumar, JK Tomson (2021) Quaternary International;
  12. Geochemistry of NW-SE trending Palaeoproterozoic mafic dyke intrusions in the Bundelkhand Craton, India and subcontinental lithospheric mantle processes. T Radhakrishna, JK Tomson, R Chandra, C Ramakrishna (2020) Precambrian Research;
  13. Characterization of partial melting events in garnet-cordierite gneiss from the Kerala Khondalite Belt, India. N Sorcar, KB Joshi, EP Oliveira, JK Tomson, V Nandakumar (2020) Geoscience Frontiers;
  14. Zircon U-Pb ages and Hf isotopic systematics of charnockite gneisses from the Ediacaran–Cambrian high-grade metamorphic terranes, southern India:Constraints on crust formation, recycling, and Gondwana correlations.” T. Vijaya Kumar, Y.J. Bhaskar Rao, Diana Plavsa, Alan Collins, J.K. Tomson, B. Vijaya Gopal, EVSSK Babu (2017) GSA Bulletin; May/June 2017; v. 129; no. 5/6; p. 625–648;
  15. “Geochemistry and Neodymium model ages of Precambrian charnockites, Southern Granulite Terrain, south India: constraints on terrain assembly.” J.K. Tomson, Y.J. Bhaskar Rao, T. Vijaya Kumar, and A. K. Choudhary (2013), Precambrian Research, 227, pp-295-315.
  16. “The LAM-MC-ICPMS National Facility at the National Geophysical Research Institute (NGRI), Council of Scientific and Industrial Research, Hyderabad.” Y.J. Bhaskar Rao, B.Vijaya Gopal, EVSSK Babu, N.P.Sukumaran, T.Vijaya Kumar, J.K.Tomson, KVSS Krishna DST News Letter, August 2009, pp.11-13.
  17. J.K. Tomson, Y.J. Bhaskar Rao, T. Vijaya Kumar and J. Mallikharjuna Rao (2006), Charnockite genesis across the Archaean – Proterozoic Terrane boundary in the South Indian Granulite Terrain: constraints from major-trace element geochemistry and Sr-Nd isotopic systematics, Gondwana Research, 10, pp-115-127.
  18. Y.J. Bhaskar Rao, T. Vijaya Kumar, K.V.S.S.Krishna, J.K.Tomson (2008),The emerging pattern of crust-formation and recycling history in the Precambrian Dharwar Craton and the Southern Granulite Terrain, southern India: Constraints from recent geochronological and isotopic results. Geol.Soc.India, 74, 147-168.
  19. J.K. Tomson, Y.J. Bhaskar Rao, T. Vijaya Kumar, A.K. Choudhary (2009) Widespread intracrustal melting and the generation of charnockites in the Neoproterozoic Maduarai Block, South India., Geochimica et Cosmochimica Acta, 73, A1339.
  20. T. Vijayakumar, Y.J.Bhaskar Rao, J.K. Tomson, A.K. Choudhary (2009), Role of deep crustal contamination in the genesis of Perinthatta anorthosite massif, South India. Geochimica et Cosmochimica Acta, 73, A1383.
  21. J.K. Tomson, Y.J. Bhaskar Rao, T. Vijaya Kumar, A.K. Choudhary (2008)  Geochemistry and Sr-Nd isotopic systematics of Archaean and Neoproterozoic charnockites from the Southern Granulite Terrain, South India: Magma genesis and tectonics.  Geochimica et Cosmochimica Acta, 72, 2S-A951
  22. Vijayakumar, Y.J.Bhaskar Rao, J.K. Tomson, A.K. Choudhary (2008), A Mesoproterozoic Sm-Nd age for the Oddanchatram anorthosite massif, South India: Evidence for ancient crustal contamination and significance to the regional terrane assembly. Geochimica et Cosmochimica Acta, 72, 2S- A984.

List of papers presented in conferences:

  1. Crustal evolution of south Indian granulites: Insights from zircon Hf isotopes. JK Tomson, JA Dev (2022) Goldschmidt Conference
  2. U-Pb baddeleyite and zircon ages from Kambam Carbonatite, south India and implications on regional tectonics. JA Dev, JK Tomson, (2022) Goldschmidt Conference
  3. Unravelling the cooling history of HT-UHT rocks from South India: New evidences from LA-ICPMS analysis of rutiles JA Dev, N Sorcar, JK Tomson (2021) Goldschmidt Conference
  4. Decoding Rodinia events in South India: Evidences from late-Tonian ages within granulites JK Tomson, S Sajna, N Sorcar, V Nandakumar (2020) AGU Fall Meeting
  5. Mantle deformation beneath the southern part of Western Ghats. C Sribin, P Rao, JK Tomson (2020) AGU Fall Meeting
  6. “Zircon U-Pb ages and Hf-isotopic compositions of Late Archean charnockites from the Biligiri Rangan, Nilgiri, Vythiri, and Coorg granulite massifs, the Southern Granulite Terrain, S. India: constraints on terrane assembly and charnockite precursors.”T. Vijaya Kumar, Y.J. Bhaskar Rao, Chris Clark, Richard Taylor, J.K. Tomson, B. Sreenivas, E.V.S.S.K. Babu and B. Vijaya Gopal (2013) in Granulites & Granulites Conference, Hyderabad.
  7. “NGRI LAM-MC-ICPMS National Facility: Reproducibility of Sr, Nd and Hf isotopic measurements.” Y.J. Bhaskar Rao, B.Vijaya Gopal, EVSSK Babu, N.P.Sukumaran, T.Vijaya Kumar, KVSS Krishna, J.K.Tomson (2009), In Proceedings of 11th ISMAS-TRICON-2009, Hyderabad, pp.52-57.
  8. “Sr, Nd, Hf and Pb isotopic characterization of the USGS BCR-2 Standard: Results from the NGRI MC-ICPMS Facility.” N.P.Sukumaran, T.Vijaya Kumar, J.K.Tomson, KVSS Krishna, B.Vijaya Gopal, Y.J. Bhaskar Rao, EVSSK Babu (2009), In Proceedings of 11th ISMAS-TRICON- 2009, Hyderabad, pp.518-521.
  9. “Sm-Nd and Rb-Sr ages and isotopic constraints on Precambrian terrain assembly aroundCauvery shear zone system, Southern Granulite Terrain, South India.” Y.J.Bhaskar Rao, T. Vijayakumar, J.K. Tomson, A.M.Dayal (2004), In Proceedings of the International Workshop on Tectonics and Evolution of the Precambrian Southern Granulite Terrain, India and Gondwanian correlations, Feb.18-25, NGRI, Hyderabad.