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Dr. G. R. Ravindra Kumar

Scientist G(Rtd.), Senior Consultant, Crustal Processes (CrP)

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Phone(Off) : 0471- 2511662

Phone(Res) : 0471-2440228

Fax : 0471-2442280

Selected Research Papers (in refereed Journals):

  1. Ravindra Kumar, G.R., and Sreejith, C. 2016 : Petrology and geochemistry of charnockites (felsic ortho-granulites) from the Kerala Khondalite Belt, Southern India: Evidence for intra-crustal melting, magmatic differentiation and episodic crustal growth. Lithos, 262, 334-354. DOI:10.1016/j.lithos.2016.07.009
  2. Ria Mukherjee, Sisir K Mondal, Hong Zhong, Zhong-Jie Bai, Vysetti Balaram, Ph.D. and G.R. Ravindra Kumar, (2014) Platinum group element geochemistry of komatiite-derived 3.1Ga ultramafic-mafic rocks and chromitites from the Nuggihalli greenstone belt, Western Dharwar craton (India), Chemical Geology, 386, 190-208
  3. Martin J. Whitehouse, G.R. Ravindra Kumar and Andrius Rimša (2014): Redistribution of radiogenic pb in zircon during ultra-high temperature metamorphism: an ion imaging and ion tomography case study from the Kerala khondalite belt, southern India. Contributions to Mineralogy and Petrology, 168(2), 1-18.
  4. Sreejith, C., Ravindra Kumar, G.R 2013. Petrogenesis of high-K metagranites in the Kerala Khondalite Belt, southern India: a possible magmatic-arc link between India, Sri Lanka, and Madagascar, Journal of Geodynamics, 63,69-82. http://dx.doi.org/10.1016/j.jog.2012.10.002
  5. Sreejith, C. and Ravindra Kumar, G.R. 2012 MnNCKFMASH phase relations in cordierite–orthopyroxene migmatitic gneisses, southern India: implications for low-pressure crustal melting under granulite-facies, Journal of the Geological Society of India, 80, pp. 613-627
  6. Ria Mukherjee, Sisir K. Mondal, Robert Frei, Minik T. Rosing, Tod E. Waight, Hong Zhong, G.R. Ravindra Kumar (2012) The 3.1 Ga Nuggihalli chromite deposits, Western Dharwar craton (India): Geochemical and isotopic constraints on mantle sources, crustal evolution and implications for supercontinent formation and ore mineralization, Lithos, 155 (2012) 392–409.
  7. Ravindra Kumar, G.R. and Sreejith, C., 2010. Relationship between heavy mineral placer deposits and hinterland rocks of southern Kerala: a new approach for source-to-sink link from the chemistry of garnets. Indian Journal of Geo-Marine Sciences, v.39(4),562-571.
  8. Ravindra Kumar, G.R. and Sreejith, C., 2010. Geochemistry of granitoids of the Kerala Khondalite Belt, Southern India– Magmatic petrogenesis in an arc-accretion setting. Goldschmidt Conference Abstracts, Geochimica et Cosmochimica Acta, v.74(12/1), A851 doi:10.1016/j.gca.2010.04.044
  9. Sreejith, C. and Ravindra Kumar, G.R., (under Review) Petrogenesis of high-K metagranitoids in the Kerala Khondalite Belt, southern India: insights into India-Sri Lanka-Madagascar connection. International Journal of Earth Sciences.
  10. Sreejith, C., Ravindra Kumar, G.R., and Babu, E.V.S.S.K. 2010. Origin of granitoids of the Kerala Khondalite Belt, southern India: Biotite as potential tectonomagmatic indicator. Goldschmidt Conference Abstracts, Geochimica et Cosmochimica Acta, v.74(12/1), A985 doi:10.1016/j.gca.2010.04.045
  11. Sreejith, C. and Ravindra Kumar, G.R., 2009. Petrological and geochemical characteristics of Marunthurkota syenites from the Kerala Khondalite Belt, southern India. Journal of the Geological Society of India, v.73, pp.386-392. doi:10.1007/s12594-009-0018-8
  12. Ravindra Kumar, G.R., 2005: Lithology and metamorphic evolultion of granulite-facies segments of Kerala, southern India. Journal of Geological Society of India, 66, 253-254.
  13. Sukumaran, S., Ravindra Kumar, G.R., and Srikantappa, C. 2005: Charnockite forming metamorphism in Palghat, southern India: a fluid inclusion study of gneiss, charnockite, charnoenderbite and pegmatite. Journal of the Geological Society of India, 66, 679-694.
  14. Ravindra Kumar, G.R., and Subhash Sukumaran: 2004: Origin and Metamorphic evolution of graulite facies rocks of Palghat region, Kerala, southern India. In: G.R.Ravindra Kumar and N. Subhash (Eds) "Earth system Science and Natural Resources Management" CESS Silver Jubilee compendium, 47-67
  15. Ravindra Kumar, G.R., 2004: Mechanism of arrested charnockite formation at Nemmara, Palghat region, southern India, Lithos, 75, 331-358
  16. Ravindra Kumar, G.R., and Subhash Sukumaran 2002: Petrology and geochemistry of gneiss, charnockite and charnoenderbite of Palghat region, southern India. Journal of Geological Society of India Memoir 50, pp 409-434
  17. Ravindra Kumar, G.R., 2002: Cardamom Hills Charnockite Massif, Southern India: preliminary results. DCS-News Letter vol. 12, pp. 12-14.
  18. Sukumaran. S and Ravindra Kumar G.R., 2000: K-feldspar metasomatism in granulite-facies rocks of Palghat region, Kerala: Evidence and implication of brines in charnockite forming metamorphism. Current Science, 79, 1594-1598
  19. Ravindra Kumar, G.R., 1999: Science Communication: Part II Techniques of Presentation. Gondwana Research, 2, 300-305
  20. Ravindra Kumar, G.R., and Srikantappa, C. 1995: Arrested charnockite formation in Palghat region, south India Jour. Geol. Soc. India, 45, pp 147-164.
  21. Braun, I., Raith, M. and Ravindra Kumar, G.R., 1996: Dehydration melting phenomena in leptynitic gneisses and the generation of leuocogranites: a case study from the Kerala Khondalite belt, southern India. Journal of Petrology, 37, 1285-1305.
  22. Ravindra Kumar, G.R., and Subhash Sukumaran 1995: Occurrence of "lamprophyre" in Palgaht region: origin and geological significance. Indian Mineralogist, 29, 42-49.
  23. Ravindra Kumar, G.R., and Narayanaswamy 1995: Morphology of zircons of massive and incipient charnockite of southern Kerala: their bearing on the origin. Current Science, 69, 941-944.
  24. Ravindra Kumar, G.R., and Chacko, T. 1994: Geothermobarometry of mafic granulites and metapelites from Palghat region of south India: evidence for isothermal uplift and rapid cooling Journal of Metamorphic Geology, 12, 479-492.
  25. Ravindra Kumar, G.R., and Venkatesh Raghavan, 1992: The incipient charnockites in transition zone, khondalite zone and granulite zone of South India: controlling factors and contrasting mechanisms. Jour. Geol. Soc. India, 39, pp 293-302.
  26. Chacko, T. Ravindra Kumar, G.R., Meen, J.K. and Rogers, J.J.W. 1992: Geochemistry of the high grade supracrustal rocks from the Kerala khondalite belt, South India. Precambrian Research, 55, 1 4, 469-490
  27. Ravindra Kumar, G.R., 1990: Geological studies in southern Kerala granulite belt: an appraisal. Jour.Geol.Soc.India memoir 18, pp. 53-61.
  28. Ravindra Kumar, G.R., and Srikantappa, C. 1989: Retrogressive metamorphism of mafic granulites of Manantoddy north Kerala. Jour. Geol. Soc. India. 33, 132-139.
  29. Ravindra Kumar, G.R., and Chacko. T. 1988: Petrology and tectonic development of supracrustal sequence of the Kerala khondalite belt, Jour. Geol.Soc. India 31, 123-124.
  30. Chacko, T., Ravindra Kumar, G.R., and Peterson, J., 1988: Water activity in the Kerala khondalite belt, India. Jour.Geol.Soc. India. 31, 16-18.
  31. Ravindra Kumar, G.R., and Narayanaswamy, 1987: Some aspects of geology and geochemistry of Vengad conglomerates, north Kerala. Jour. Geol.Soc.India. 28, 264-270.
  32. Chacko. T., Ravindra Kumar, G.R., and Newton. R.C. l987: Metamorphic P T conditions of Kerala (s.India) khondalite belt: a granulite facies supracrustal terrain, J. Geol. 95, 343-358.
  33. Srikantappa, C. and Ravindra Kumar, G.R., 1987: Charnockite formation at Ponmudi, south Kerala: evidence and implications of charnockite formation in southern India. Proc.Ind. Acad. Scie. 96, 1-10.
  34. Hansen, E.C., Janardhan, A.S., Newton,R.C., Pram, W.K.B.N.,and Ravindra Kumar, G.R., 1987: Arrested charnockite formation in southern India and Sri Lanka. Contrib. Mineral. Petrol. 95, 225-244.
  35. Ravindra Kumar, G.R., l986: Petrology and geochemistry of massif type anorthosites and gabbros of the Bavali fault zone, north Kerala. Proc. Ind. Acad. Sci. 95, 117-130.
  36. Ravindra Kumar, G.R., and Chacko, T. 1986: Mechanisms of charnockite formation and breakdown in southern Kerala: Implications for the origin of the southern Indian granulite terrain. Jour.Geol.Soc. India. 28. 277-288.
  37. Sinha Roy, S. and Ravindra Kumar, G.R., 1986: Geochemistry of gabbro tonalite trondhjemite granite suite of rocks of Ezhimala pluton, north Kerala. Jour. Geol. Soc. India. 28, 117-130.
  38. Janardhan A.S., Leake, B.E., Farrow,C.M. and Ravindra Kumar, G.R., 1986: The petrochemistry of the Archaean metasediments and metamagmatites around Sargur, southern Karnataka. Ind. Mineralogist, 27, 166-184.
  39. Ravindra Kumar, G.R., Srikantappa. C. and Hansen E.C. l985: Charnockite formation at Ponmudi, southern India. Nature, 213, 207-209.
  40. Ravindra Kumar, G.R., and Sinha Roy S. l985: Field relations and geochemistry of Peralimala syenite pluton northern Kerala. Indian Mineralogist, 26, 33-41.
  41. Sinha Roy.S., and Ravindra Kumar, G.R., 1985: Pseudotachylites of the Bavali fault zone, northern Kerala. Jour. Geol.Soc.India. 26, 180-192.
  42. Sinha Roy.S., and Ravindra Kumar, G.R., 1982: Fuchsite bearing quartzites in the Sargur equivalent rocks of northern Kerala. Jour. Geol. Soc. India. 25, 120-122.
  43. Janardhan A.S., Shadakshara Swamy N. and Ravindra Kumar, G.R., 1982; Petrological and structural studies of the manganiferrous horizons and recrystallised ultramafics around Gundlupet, Karnataka. Jour. Geol. Soc. India. 22, 103-111.
  44. Janardhan A.S., Ravindra Kumar, G.R., and Shadakshra Swamy.N.1979: Implications on the tectonic setting of gabbroic anorthosite occurrences around Gundlupet, Karnataka. Curr. Sci. 48, 804-806.
  45. Janardhan A.S., Ramachandra. H.M. and Ravindra Kumar G.R. 1979: Structural history of Sargur supracrustals and associated gneisses SW of Mysore, Karnataka. J.Geol.Soc.India. 20, 61-72

Research Publications in proceedings:

  1. Ravindra Kumar, G.R. and Sreejith, C., 2011. Remelting of tonalitic crust and genesis of high-K granitoid during arc-accretion: evidence for crustal reworking in the Kerala Khondalite Belt. Accepted for presentation in the International Symposium on Precambrian Accretionary Orogens, University of Delhi, 2-3 February 2011.
  2. Sreejith, C. and Ravindra Kumar, G.R., 2011. Geochemistry of K-feldspar megacryst granitoids of the Kerala Khondalite Belt: evidence for exposed roots of an accreted continental-arc system. Accepted for presentation in the International Symposium on Precambrian Accretionary Orogens, University of Delhi, 2-3 February 2011.
  3. Sreejith, C. and Ravindra Kumar, G.R., 2010. New petrological and geochemical evidences for the formation of gneissic variants of the Kerala Khondalite Belt (KKB): implications for Proterozoic supercontinent assembly. Extended Abstract, Young Scientist Contest Paper, Proceedings of the 22nd Kerala Science Congress, pp.355-356
  4. Ravindra Kumar, G.R. and Sreejith, C., 2007. Supracrustal rocks and associated gneisses of Wynad schist belt, northern Kerala. (Abst. Vol.), International Seminar on “Crustal Evolution, Sedimentary processes and Metallogeny”, Organised by the Geological Society of India and SDM College of Engineering, Dharwad. Karnataka, India. Pp.13–14.
  5. Ravindra Kumar, G.R., and Srikantappa, C. 1988: Mineral and whole rock chemistry and P T conditions of metamorphism of metapelites of Manantoddy, north Kerala. Proc. 6th Ind. Geol.Congress, 103-109.
  6. Ravindra Kumar, G.R., (1996) Charnockite rocks in the granulite terrain of the southern shield: Kerala Sector. In: Field Guide, International symposium on charnockite and granulite facies rocks, Madras, 42-57
  7. Braun, I., Raith, M. and Ravindra Kumar, G.R., 1996: Dehydration melting in leptynitic gneisses of the Kerala Khondalite Belt and the generation of leucogranites at granulite facies condition. Proceedings IGCP 368 International Field workshop on Proterozoic continental crust of southern India, August, 1996. Gondwana Research Group Misc.Publ. No.4. p. 85.
  8. Ravindra Kumar, G.R., 1996 Arrested charnockite formation in southern India. In Proc. International symposium on charnockite and granulite-facies rocks Madras, p. 76.
  9. Sukukmaran, S, Srikantappa, C. and Ravindra Kumar, G.R., 1996: Fluid inclusions in gneisses and charnockites of the Palghat Gap region, India: Implications for the charnockite forming metamorphism. In: Proc. International symposium on charnockite and granulite-facies rocks. Madras
  10. Ravindra Kumar, G.R., (1998) Characterisation of metamorphism and element mobility across gneiss to charnockite transition at Nemmara, Kerala, XI Indian Geological Congress Mysore , Indian Mineralogist, v32, p 43-45
  11. Ravindra Kumar, G.R., 2004 Kerala Khondalite belt: Major rock types, Abstracts and Excursion Guide, International field workshop IFW-SGT, 2004. 117-122.
  12. Ravindra Kumar, G.R., 2004 Field excursion Guide to outcrops Manali, Malayankil, Eripara and Kottavattom. International Abstracts and Excursion Guide, International field workshop IFW-SGT, 2004. 125-133.

Technical Reports:

  1. Ravindra Kumar, G.R., 2004: Evolution of Kodaikanal-Cardamom Charnockite massif, southern India. submitted to the Department of Science and Technology, Govt. of India. 56p (CESS Technical report No. 21-2004)
  2. Ravindra Kumar, G.R., 2004: Lithology and tecono-metamorphic evolution of the Kerala Khondalite belt, southern India. Submitted to the Department of Science and Technology, Govt. of India. (CESS Technical report No. 22-2004)
  3. Ravindra Kumar, G.R., 1995: Evolution of granulite-facies rocks of Palghat, south India. SERC Research Highlights, Department of Science and Technology, New Delhi, 75-77
  4. Ravindra Kumar, G.R., Venkatesh Raghavan, and Subhash Sukumaran, 1993: Evolution of the granulite-facies rocks in Palghat Gap area, Northern Kerala: Implications on the development of the granulite belt of South India. Final Report submitted to the Department of Science and Technology, Govt. of India. 98p.
  5. Ravindra Kumar, G.R., and Venkatesh Raghavan, 1991: The significance of occurrence of incipient charnockites in granulite zone of South India In:workshop on ‘Composition and evolution of high grade gneiss terrains’, Kandy, Sri Lanka. pp 33-35.
  6. Ravindra Kumar, G.R.1988: The Kerala khondalite belt. In: Workshop on the deep continental crust of South India. LPI technical report no 88 06, 267 286 and 359-377.
  7. Ravindra Kumar, G.R., 1998: The Release of a new Internal Geoscience Journal " Gondwana Research". Gondwana Research, 2, 307-311
  8. Ravindra Kumar G.R. and Subhash Sukumaran, 1998:Comparative petrological study of critical regional granulite-facies blocks of south India Final Report submitted to the Department of Science and Technology, Govt. of India. 126p
  9. Ravindra Kumar. G.R., l987: On the P T conditions of metamorphism of Schirmachar range E. Antarctica. Tech. Report no 3, 3rd Indian Expedition to Antarctica, 225-230.

Books:

  1. Ravindra Kumar, G.R., Rajendran, C.P. and Prakash, T.N. 1990: Charnockite khondalite belt and Quartenary and Tertiary sequences of southern Kerala. Excursion Guide. Geological Society of India, Bangalore, 116p.

Books Edited:

  1. Ravindra Kumar, G.R., and Subhash, N. 2004: Earth System Science and Natural Resources Management. (Editors), Silver Jubilee Compendium, Centre for Earth Science Studies, Trivandrum. 453p.

Book Review:

  1. Ravindra Kumar, G.R., 1999: "The Indian Precambrian " Edited by B.S. Paliwal, published by Scientific Publishers (India), Jodhpur – 342, Gondwana Research, 4, 687-688

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