Associate Professor
2004, Doctor of Philosophy (PhD), Earth Sciences, Florida International University (FIU), Miami, Florida, USA
1997, Master of Science (M.Sc.), Applied Geology, Indian Institute of Technology-Bombay, Bombay, India
1995, Bachelor of Science (B.Sc.), Geology (with Honors), Physics, Chemistry University of Delhi, Delhi, India
Areas of Interest:
Business Analytics and Data Science
PUBLICATIONS
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Keshav, S., Hammouda, T., Gudfinnsson, G.H. (in press) Melting phase equilibria from 4 to 7 GPa in the system CaO-MgO-Al2O3-SiO2-CO2, the persistence of the “ledge” in carbonated basalt with excess silica, and the likely limits on the depths of termination of carbon cycle at Earth’s subduction zones. (Journal of Petrology)
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Keshav, S., Gudfinnsson, G.H. (2021) A reappraisal of peridotite solidus phase equilibria from 6 to 14 GPa in the system CaO-MgO-Al2O3-SiO2. Journal of Petrology 62, https://doi.org/10.1093/petrology/egab009
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Keshav, S., Corgne, A., Gudfinnsson, G.H., Fei, Y. (2020) Major and trace element partitioning
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between majoritic garnet, clinopyroxene, and carbon dioxide-rich liquid in model carbonated peridotite at 10 GPa and interpretations of the element chemistry of majoritic garnet inclusions in diamonds from the subcontinental mantle of Brazil and Guinea. Lithos 362, paper no. 105486
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Hammouda, T., Keshav, S. (2015) Melting in the mantle in presence of CO2; review of experiments and discussion on the origin of carbonatites. Chemical Geology 418, 171-188
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Baptiste, V., Demouchy, S., Keshav, S., Parat, F., Bolfan-Casanova, N., Condamine, P., Cordier, P. (2015) Decrease of hydrogen incorporation in forsterite from CO2-H2O kimberlitic liquid. American Mineralogist 100, 1912-1920
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Demouchy, S., Ishikawa, A., Tommasi, A., Alard, O., Keshav, S. (2015) Characterization of Hydration in the mantle lithosphere: peridotite xenoliths from the Ontong-Java Plateau as an example. Lithos 212-215, 189-201
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Keshav, S., Gudfinnsson, G.H. (2014) Melting phase equilibria of model, carbonated peridotite from 8 to 12 GPa in the system CaO-MgO-Al2O3-SiO2-CO2 and kimberlitic liquids in the Earth's upper mantle. American Mineralogist 99, 1119-1126
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Novella, D., Keshav, S., Gudfinnsson, G.H., Ghosh, S. (2014) Melting phase relations of model carbonated peridotite from 2 to 3 GPa in the system CaO-MgO-Al2O3-SiO2-CO2 and further indication of unmixing between carbonatite and silicate liquids. Journal of Geophysical Research 119, 2780-2800
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Keshav, S., Gudfinnsson, G.H. (2013) Silicate liquid-carbonatite liquid transition along the melting curve of model, vapor-saturated peridotite in the system CaO-MgO-Al2O-SiO2-CO2 from 1.1 to 2 GPa. Journal of Geophysical Research 118, 3341-3353
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Shirey, S., Cartigny, P., Frost, D.J., Keshav, S., Nestola, F., Nimis, P., Pearson, D.G., Sobolev, N.V., Walter, M.J. (2013) Diamonds and the geology of mantle carbon. Reviews in Mineralogy and Geochemistry (Carbon in Earth) 75, 355-421
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Corgne, A., Armstrong, L.S., Keshav, S., Fei, Y., McDonough, W.F., Minarik, W.G., Moreno, K. (2012) Trace element partitioning between majoritic garnet and silicate melt at 10-17 GPa: implications for deep mantle processes. Lithos 148, 128-141
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Keshav, S., Gudfinnsson, G.H., Presnall, D.C. (2011) Melting phase relations of simplified carbonated peridotite at 12-26 GPa in the systems CaO-MgO-SiO2-CO2 and CaO- MgO-Al2O3-SiO2-CO2: highly calcic magmas in the Transition Zone of the Earth. Journal of Petrology 52, 2265-2291
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Keshav, S., Gudfinnsson, G.H. (2010) Experimentally dictated stability of carbonated oceanic crust to moderately great depths in the Earth: results from the solidus determination in the system CaO-MgO-Al2O3-SiO2-CO2. Journal of Geophysical Research 115, doi: 10.1029/2009JB006457
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Van Orman, J.A, Keshav, S., Fei, Y. (2008) High pressure, high temperature partitioning of Re, Os, and Pt between solid/molten metal alloy in the system Fe-S. Earth and Planetary Science Letters 274, 250-257
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Walter, M.J., Bulanova, G., Armstrong, L.S., Keshav, S., Blundy, J.D., Gudfinnsson, G.H. Lord, O., Lennie, A., Clark, S.M., Smith, C., Gobbo, L., EIMF (2008) Primary carbonatitic melts from subducted oceanic crust. Nature 454, 622-626
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Corgne, A., Keshav, S., Wood, B.J., McDonough, W.F., Fei, Y. (2008) Metal-silicate partitioning and constraints on the composition of the Earth’s core and oxygen fugacity during Earth’s accretion. Geochimica Cosmochimica Acta 72, 574-589
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Keshav, S., Sen, G., Presnall, D.C. (2007) Garnet-bearing xenoliths from Salt Lake Crater, Oahu, Hawaii: High-pressure fractional crystallization in the oceanic mantle. Journal of Petrology 48, 1681-1724
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Corgne, A., Keshav, S., Fei, Y., McDonough, W.F., How much potassium is in the Earth’s core? (2007) New insights from new partitioning experiments. Earth and Planetary Science Letters 256, 567-576
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Abbott, R.N., Draper, G., Keshav, S., UHP magma paragenesis, garnet peridotite and garnet clinopyroxenite: An example from the Dominican Republic (2006) In Liou, J.G., and Cloos, M., (eds.) Phase relations, high-pressure terranes, P-T-ometry, and plate pushing: A tribute to W. G. Ernst. Geological Society of America, International Book Series, vol. 9, pp. 653-667
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Keshav, S., Bizimis, M., Gudfinnsson, G.H., Sen, G., Fei, Y. (2006) Pyroxenites everywhere. Response to the comment by M. Lustrino on High-pressure melting experiments on garnet clinopyroxenite and the alkalic–tholeiitic transition in ocean-island basalts by Keshav et al. [Earth and Planetary Science Letters. 223, 365–379 (2004)], Earth and Planetary Science Letters 241, 997-999
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Gangopadhyay, A., Sen, G., Keshav, S. (2005) Experimental crystallization of Deccan Basalts at low pressure: effect of contamination on phase equilibrium. Indian Journal of Geology 75, 54-71
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Abbott, R.N., Draper, G., Keshav, S. (2005) UHP metamorphism in garnet peridotite, Cuaba unit, Rio San Juan complex, Dominican Republic, in Draper, G. (ed.) Transactions of the 16th Caribbean Geological Conference, Barbados. Caribbean Journal of Earth Science 39, 13-20
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Keshav, S., Corgne, A., Gudfinnsson, G.H., Bizimis, M., McDonough, W.F., Fei, Y. (2005) Kimberlite petrogenesis: insights from clinopyroxene–melt partitioning experiments at 6 GPa in the CaO-MgO-Al2O3-SiO2-CO2 system. Geochimica Cosmochimica Acta 69, 2829-2845
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Bizimis, M., Sen, G., Salters, V.J.M., Keshav, S. (2005) Nd-Sr isotope systematics of garnet pyroxenites from Salt Lake Crater, Oahu, Hawaii: Evidence for a depleted component in Hawaiian volcanism. Geochimica Cosmochimica Acta 69, 2629- 2646
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Sen, G., Keshav, S., Bizimis, M. (2005) Hawaiian lithosphere and magmas: Composition and thermal characteristics of the lithosphere. American Mineralogist 90, 971-988
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Abbott, R.N., Draper, G., Keshav, S. (2005) UHP magma genesis, garnet peridotite, and garnet clinopyroxenite: an example from Dominican Republic. International Geology Review 47, 233-247
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Keshav, S., Gudfinnsson, G. H. (2004) Silica-poor, mafic-alkaline lavas from ocean islands and continents: petrogenetic constraints from major-elements. Proceedings of Indian Academy of Sciences (Earth and Planetary Sciences) 113, 723-736. In: ‘Magmatism in India through Time’
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Keshav, S., Gudfinnsson, G.H., Sen, G., Fei, Y. (2004) High-pressure melting experiments on garnet clinopyroxenite and the alkalic to tholeiitic transition in ocean island basalts. Earth and Planetary Science Letters 223, 365-379
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Keshav, S., Sen, G. (2004) The depth of magma fractionation in the oceanic mantle: insights from garnet-bearing xenoliths from Oahu, Hawaii. Geophysical Research Letters 31, doi: 10.1029/2003GL018990
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Keshav, S., Sen, G. (2003) A rare composite xenolith from Salt Lake Crater, Oahu: high- pressure fractionation and implications for kimberlitic melts in the Hawaiian Mantle. Contributions to Mineralogy and Petrology 144, 548-558
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Keshav, S., Sen, G. (2001) Majoritic garnets in Hawaiian xenoliths: preliminary results. Geophysical Research Letters 28, 3509-3512
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Abbott, R.N., Draper, G., Keshav, S. (2001) Garnet peridotite found in Greater Antilles. EoS 82, no.35, pp. 381-388
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Chandrasekharam, D., Vaselli, O., Sheth, H.C., Keshav, S. (2000) Petrogenetic significance of ferro- enstatite orthopyroxene in basaltic dikes from the Tapi Rift, Deccan Flood Basalts Province, India. Earth and Planetary Science Letters 179, 469-476
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Keshav, S., Sheth, H.C., and Chandrasekharam, D. (1998) Field geology, petrography, and orthopyroxene clusters of the Dhule-Parola dike, Tapi valley, central Deccan basalt province. Current Science 74, 252-254
Proceedings of papers presented at conferences/workshops/thematic schools
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Keshav, S., Novella, D., Gudfinnsson, G.H. (2014) David Eggler versus Peter Wyllie debate on the carbonated peridotite solidus ledge and cabonatite liquids in the Earth’s upper mantle, reconsidered. European Geosciences Union, Vienna, Austria
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Bizimis, M., Peslier, A., McCammon, C.A., Keshav, S., Williams, H.M. (2014) Recycling of oceanic lithosphere, water, fO2, and Fe-isotopes. Goldschmidt conference, Sacramento, California, USA
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Keshav, S. (2012) Kimberlitic melts and their diamonds. Deep Carbon Observatory (Sloan Foundation), Reservoirs and Fluxes Committee, San Francisco, California, USA
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Keshav, S. (2012) Hot liquids and possible ramifications for thermal regimes in putative magma oceans in Early Earth. Geodynamics workshop, Wandlitzsee, Germany
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Shirey, S., Cartigny, P., Frost, D.J., Keshav, S., Nestola, F., Nimis, P., Pearson, D.G., Sobolev, N., Walter, M.J. (2012) Diamonds and the geology of Earth's mantle carbon. Geological Society of America Meeting, Charlotte, North Carolina, USA
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Keshav, S., Gudfinnsson, G.H. (2011) Aqueous fluids and dense-carbonatitic liquids from melting of model peridotite in the system CaO-MgO-Al2O3-SiO2-CO2-H2O. Centre Europeen de calcul atomique et moleculaire (CECAM) - Dynamical properties of Earth materials, Lausanne, Switzerland
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Shirey, S., Cartigny, P., Chinn, I., Frost, D.J., Jones, A.P., Keshav, S., Nestola, F., Nimis, P., Pearson, D.G., Walter, M.J. (2011) Diamonds and mantle geodynamics. Deep Carbon Observatory Workshop, Novosibirsk, Siberia, Russian Federation
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Keshav, S. (2011) Physical thermodynamics of watery-carbonated fluids in Earth's upper mantle. International School on Diamonds, Brixen, Italy
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Novella, D., Keshav, S. (2010) Silicate melt-carbonatite liquid immiscibility reconsidered in the system CaO-MgO-Al2O3-SiO2-CO2 at 2-3 GPa. Experimental Mineralogy, Petrology, Geochemistry (EMPG), Toulouse, France
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Tibbetts, N., Bizimis, M., Longo, M., Keshav, S., Salters, V.J.M. (2010) Apparent oxygen fugacity structure beneath Oahu, Hawaii. Goldschmidt Conference, Knoxville, USA
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Keshav, S., Gudfinnsson, G.H. (2010) Carbonatites and non-existence of supercritical features in hydrous, carbonated peridotite at 22-70 kbar. Experimental Mineralogy, Petrology, Geochemistry (EMPG), Toulouse, (France
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Keshav, S., Gudfinnsson, G.H. (2009) Absence of singularity along the wet solidus of carbonated peridotite. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Buisman, I., Walter, M.J., Keshav, S., (2009) Non-potassic melts in CMAS-CO2-H2O-K2O peridotite. Transactions of the American Geophysical Union (Fall Meeting), San
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Francisco, California, USA
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Tibbetts, N, Bizimis, M, Keshav, S., Longo, M., Salters, V.J.M., McCammon, C. (2009) The oxygen fugacity structure of the sub-oceanic lithosphere and upper mantle as recorded by spinel peridotite and garnet clinopyroxenite xenoliths from Oahu, Hawaii. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Keshav, S., Gudfinnsson, G.H. (2009) The transition between basaltic and carbonatitic liquids in the Earth. The Deep Carbon Cycle, crust-to-core meeting, Zuerich, Switzerland
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Keshav, S. (2009) A tale of two ledges in the carbonated peridotite space. Goldschmidt Conference, Davos, Switzerland
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Keshav, S., Tirone, M., Gudfinnsson, G.H., Presnall, D.C. (2008) Melting in the system
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CaO-MgO-Al2O3-SiO2-FeO-Cr2O3 spanning the plagioclase-spinel lherzolite transition at 7 to 10 kbar: experiments versus thermodynamics. Transactions of the American
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Geophysical Union (Fall Meeting), San Francisco, California, USA
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Ghosh, S., Keshav, S., Gudfinnsson, G.H, Presnall, D.C. (2008) Detailed structure of the carbonated peridotite solidus ledge in the system CaO-MgO-Al2O3-SiO2-CO2.
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Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Gudfinnsson, G.H., Keshav, S., Presnall, D.C. (2007) Water-rich carbonatites at low pressures and kimberlites at high pressures. Transactions of the American Geophysical Union
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(Fall Meeting), San Francisco, California, USA
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Van Orman, J.A., Keshav, S., Fei, Y. (2008) High pressure solid-metal/liquid-metal
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partitioning of Os, Re, and Pt in the Fe-FeS system. Transactions of the 7th Annual COMPRES Meeting, Colorado Springs, USA
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Keshav, S., Gudfinnsson, G.H. (2007) Carbonated eclogite solidus between 14 and 16 GPa: results from the model CMAS-CO2 system and contrasting solidus behavior than carbonated peridotite. Transactions of the American Geophysical Union (Fall
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Meeting), San Francisco, California, USA
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Gudfinnsson, G.H., Keshav, S., Presnall, D.C. (2007) Melting of hydrous, carbonated mantle peridotite. Transactions of the American Geophysical Union (Fall Meeting), San
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Francisco, California, USA
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Armstrong, L.S., Walter, M.J., Keshav, S., Bulanova, G., Pickles, J., Lord, O., Lennie, A. (2007)
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Ca(Ti,Si)O3 inclusions in diamonds crystallized carbonate melts in the transition zone: experimental constraints. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Walter, M.J., Bulanova, G., Armstrong, L.S., Keshav, S., Blundy, J.D., Hinton, R., and Lennie, A. (2007) Primary Ca-rich carbonate melts in the transition zone. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Keshav, S., Gudfinnsson, G.H., Presnall, D.C. (2007) Precipitous drop in the solidus of carbonated peridotite between 14-16 GPa: calcic carbonatites in the Earth’s transition zone. Goldschmidt Conference, Cologne, Germany
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Corgne, A., Keshav, S., Wood, B.J, McDonough, W.F., Fei, Y. (2007) New metal-silicate
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partition coefficients and constraints on the composition of the Earth’s core and oxygen fugacity during Earth’s accretion. Goldschmidt Conference, Cologne, Germany
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Keshav, S., Gudfinnsson, G.H., Presnall, D.C. (2006) Majoritic-garnets and clinopyroxenes in cratonic diamonds: precipitates from CO2-rich melts. Experimental Mineralogy, Petrology, and Geochemistry, Bristol, United Kingdom (UK)
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Van Orman, J.A., Keshav, S., Fei, Y. (2006) High-pressure solid-metal/liquid-metal partitioning of Os, Re, and Pt in the Fe-S system. Goldschmidt Conference, Melbourne, Australia
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Corgne, A., Keshav, S., Fei, Y., McDonough, W.F. (2006) How much potassium in the Earth’s core? Insights from experimental petrology. Goldschmidt Conference, Melbourne, Australia
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Keshav, S., Gudfinnsson, G.H., Presnall, D.C., Minarik, W. G., Fei, Y. (2005) Garnet-melt partitioning at 10 GPa in the CMAS-CO2 system: a link between CO2-rich melts and majoritic-garnets in diamonds from the Earth’s mantle? Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Bizimis, M., Salters, V.J.M., Sen, G., Keshav, S., Ducea, M. (2005) The heterogeneous
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Hawaiian lithosphere: New isotope data from Kauai and Oahu peridotites Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Armstrong, L.S., Corgne, A., Keshav, S., Minarik, W., McDonough, W.F., Fei, Y. (2005)
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Majoritic garnet-silicate melt partitioning of trace elements between 10 and 17 GPa in an anhydrous fertile mantle composition Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Corgne, A., Keshav, S., McDonough, W.F., Fei, Y. (2005) Major and trace element partitioning during core-mantle differentiation in a magma ocean: New high-pressure experimental data on CI- and EH-chondrite model compositions. Transactions of the
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American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Draper, G., Abbott, R.N., Jr., Keshav, S. (2005) Cuaba Gneiss, Dominican Republic: An ultra high-pressure metamorphic terrane in the northern Caribbean. 17th Caribbean Geological Conference, San Juan, Puerto Rico
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Armstrong, L.S., Keshav, S., Corgne, A., Minarik, W., Fei, Y. (2005) Majorite-melt and olivine- melt trace-element partitioning from 10-17 GPa in a fertile mantle composition. 3rd Workshop on Earth’s Mantle Composition, Structure, and Phase Transitions, Saint Malo, France
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Keshav, S., Van Orman, J.A. (2005) Earth’s core in the mantle? Experimental fractionation of Re, Os, and Pt in core-forming phases. 3rd Workshop on Earth’s Mantle Composition, Structure, and Phase Transitions, Saint Malo, France
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Keshav, S., Van Orman, J.A. (2005) Partitioning of Re, Os, and Pt between solid and liquid metal iron sulfide at 3-22 GPa and 1300-1775 oC: is the Earth’s outer core so giving? American Geophysical Union, Chapman Conference, The Great Plume Debate, Fort William, Scotland, UK
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Armstrong, L.S., Keshav, S., Corgne, A. (2005) Melting phase relations and crystal-melt partitioning in primitive mantle compositions at pressures of transition zone. 3rd Workshop on Earth’s Mantle Composition, Structure, and Phase Transitions, Saint Malo, France
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Armstrong, L.S., Keshav, S., Corgne, A., Fei, Y. (2005) Melting phase relations of anhydrous, fertile lherzolite at 10 GPa: MgO-rich magmas and Ca-poor pyroxene. Transactions 4th Annual COMPRES Meeting, New York, USA
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Bizimis, M., Sen, G., Lassiter, J.C., Salters, V.J.M., Keshav, S. (2005) Recycled oceanic mantle lithosphere in Hawaii: samples and models. Transactions of the American
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Geophysical Union (Spring Meeting), Florida, USA
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Keshav, S., Corgne, A., McDonough, W.F., Fei, Y. (2005) Potassium-bearing iron-nickel
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sulfides in nature and high-pressure experiments: geochemical consequences of potassium in the earth’s core. Abstracts XXXVI Lunar and Planetary Science
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Conference, Houston, Texas, USA
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Keshav, S., Van Orman, J.A. (2005) Diffusion in zinc at high pressure, and rheology of the
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Earth’s inner core. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Corgne, A., Keshav, S., Fei, Y. (2004) Potassium as a radioactive source in the Earth’s core? A high-pressure experimental study. Transactions of the American Geophysical Union
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(Fall Meeting), San Francisco, California, USA
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Armstrong, L.S., Keshav, S., Corgne, A. (2004) Liquidus phase relations of pyrolite at transition zone pressures. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Keshav, S., Gudfinnsson, G., Sen, G., Presnall, D., and Fei, Y. (2003) Ocean-island lavas:
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Garnet clinopyroxenite or CO2-bearing mantle lherzolite? Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Mukherjee, S., Bizimis, M., Keshav, S., Sen, G. (2003) Hydrous and anhydrous garnet-bearing mantle xenoliths from Hawaii: Isotopic Heterogeneity? Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Sen, G., Bizimis, M., Keshav, S. (2003) A physical description of the lithosphere and seismic low-velocity zone beneath Oahu: perspectives from Hawaiian mantle xenoliths. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Abbott, R.N., Draper, G., Keshav, S. (2003) UHP magmatic paragenesis, garnet peridotite, Cuaba Unit, Rio San Juan Complex, Dominican Republic. Geological Society of
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Americal Annual Meeting, Seattle, Washington, USA
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Sen, G., Keshav, S., Bizimis, M. (2003) Water, phlogopite, carbonatite and a new model for
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The lithosphere and Hawaiian plume melting. Geological Society of America Annual Meeting, Seattle, Washington, USA
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Keshav, S., Gudfinnsson, G.H., Sen, G., Presnall, D.C., Fei, Y. (2003) Tholeiitic to alkalic transition in basaltic liquids: some inferences from high-pressure garnet- pyroxenite melting. Goldschmidt Conference, Kurashiki, Japan
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Abbott, R.N., Draper, G., Keshav, S. (2003) Tectonic implications of UHP garnet peridotite in the Cuaba Unit, Rio San Juan Complex, Dominican Republic. Geological Society of America 99th Annual Cordilleran Section Meeting, Puerto Vallarta, Mexico
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Keshav, S., Sen, G. (2002) Exsolution times of Hawaiian Garnet-pyroxenites. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Sen. G., Keshav, S., Presnall, D.C., Weng, Yi-H. (2002) High-pressure polybaric fractionation and spinel-garnet-liquid reactions in garnet-bearing xenoliths from Oahu: Evidence from CMAS. Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
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Draper, G., Abbott, R.N. Jr., Keshav, S. (2002) Indication of UHP metamorphism in garnet peridotite, Cuaba Unit, Rio San Juan Complex, Dominican Republic. Transactions 16th Caribbean Geological Conference, Barbados
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Abbott, R.N., Draper, G., Keshav, S. (2002) Retrograded eclogite in the Cuaba amphibolite of the Rio San Juan Complex, northern Hispaniola. Transactions 15th Caribbean Geological Conference, Kingston, Jamaica
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Keshav, S. Sowerby, J.R., Sen, G. (2001) Ilmenite exsolution in xenolithic garnets from the Hawaiian hot spot: evidence for the existence of high-titanium garnets in the Earth’s mantle. Transactions of the American Geophysical Union (Fall Meeting), San
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Francisco, California, USA
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Abbott, R.N., Draper, G., Keshav, S. (2001) Alpine-type garnet peridotite in the Caribbean. Geological Society of America Annual Meeting, Boston, Massachusetts, USA
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Keshav, S., Sen, G. (2000) Ultradeep upper mantle xenoliths from the Hawaiian Plume.
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Transactions of the American Geophysical Union (Fall Meeting), San Francisco, California, USA
SELECT INVITED PRESENTATIONS AT CONFERENCES/WORKSHOPS/THEMATIC SCHOOLS
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Keshav, S., Novella, D., Gudfinnsson, G.H. (2014) David Eggler versus Peter Wyllie debate on the carbonated peridotite solidus ledge and cabonatite liquids in the Earth’s upper mantle, reconsidered. European Geosciences Union, Vienna, Austria
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Keshav, S. (2014) Phase equilibria of carbonated peridotite and genesis of carbonatites and kimberlites in Earth's upper mantle. Diamonds and Mantle Geodynamics (DMGC) workshop, sponsored by Alfred Sloan Foundation and Deep Carbon Observatory (Carnegie Institution of Washington DC), University of Bristol, UK
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Bizimis, M., Peslier, A., McCammon, C.A., Keshav, S., Williams, H.M. (2014) Recycling of oceanic lithosphere, water, fO2, and Fe-isotopes. Goldschmidt conference, Sacramento, California, USA (keynote lecture)
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Keshav, S. (2012) Kimberlitic melts and their diamonds. Deep Carbon Observatory (Sloan Foundation), Reservoirs and Fluxes Committee, San Francisco, California, USA
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Keshav, S. (2012) Hot liquids and possible ramifications for thermal regimes in putative magma oceans in Early Earth. Geodynamics workshop, Wandlitzsee, Germany
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Shirey, S., Cartigny, P., Frost, D.J., Keshav, S., Nestola, F., Nimis, P., Pearson, D.G., Sobolev, N., Walter, M.J. (2012) Diamonds and the geology of Earth's mantle carbon. Geological Society of America Meeting, Charlotte, North Carolina, USA
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Shirey, S., Cartigny, P., Chinn, I., Frost, D.J., Jones, A.P., Keshav, S., Nestola, F., Nimis, P., Pearson, D.G., Walter, M.J. (2011) Diamonds and mantle geodynamics. Deep Carbon Observatory Workshop, Novosibirsk, Siberia, Russian Federation
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Keshav, S. (2011) Physical thermodynamics of watery-carbonated fluids in Earth's upper mantle. International School on Diamonds, Brixen, Italy
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Keshav, S., Gudfinnsson, G.H. (2011) Aqueous fluids and dense-carbonatitic liquids from melting of model peridotite in the system CaO-MgO-Al2O3-SiO2-CO2-H2O. Centre Europeen de calcul atomique et moleculaire (CECAM) - Dynamical properties of Earth materials, Lausanne, Switzerland
SELECT INVITED SEMINARS/TALKS AT UNIVERSITIES/INSTITUTES
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Keshav, S. (2020b) Melts and fluids in earth and planetary systems. National Institute of
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Science Education and Research, Orissa, India (online)
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Keshav, S. (2020a) Melts and fluids in earth and planetary systems. National Institute of
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Science Education and Research, Orissa, India (online)
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Keshav, S. (2020) Melts and fluids in earth and planetary systems. Indian Institute of
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Technology, Roorkee, India (online)
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Keshav, S. (2018) Melts and fluids in Earth. Indian Institute of Science Education and Research, Pune, India
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Keshav, S. (2015) Differentiation of planets in layers - always the case? Indian Institute of Technology, Kanpur, India
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Keshav, S. (2015) Heat in planets. Indian Institute of Technology, Kanpur, India
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Keshav, S. (2014) Melts and Fluids in Earth. Indian Institute of Technology, Kanpur, India
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Keshav, S., Gudfinnsson, G.H. (2013) Phase equilibria of carbon dioxide and water and kimberlitic melts, and diamonds. University of Clermont-Ferrand, France
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Keshav, S. (2013) Salty and aqueous fluids and carbonatitic liquids in diamonds from the continental mantle. Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC, USA
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Keshav, S. (2013) Solidus phase equilibria and the most plausible liquids compositions from fusion of model peridotite from 6 to 14 GPa in the system CaO-MgO-Al2O3-SiO2. Reykjavik, Iceland
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Keshav, S. (2011) Non-ideal silicate and carbonatite liquids at very shallow depths in Earth's upper mantle. Volatiles in Earth, University of Bristol, UK
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Keshav, S. (2011) Wet fluids, dense liquids, and reactions in Earth's upper mantle. Workshop on Earth materials. Ecole Normale Superieure (ENS) Lyon, France
RESEARCH FUNDING (SPONSORED FUNDING)
As principal investigator (PI)
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2002 - 2003 - Graduate School Fellowship, FIU - PI; 25,000 US Dollars
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2012 - 2016 - Generation of basaltic magmas in the Earth's upper mantle; 100,000 Euros; European Union (EU) Career Integration Grant (CIG) Marie Curie 7th Framework (2012-2016)
As co-PI
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1995 - 1998 - Magma generation at Hawaii – Gautam Sen (FIU, USA); Co-PIs - Vincent Salters (Florida State University [FSU], USA - PIs); Shantanu Keshav (FIU, USA); 200,000 US Dollars (National Science Foundation, USA)
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2000 - 2002 - Acquisition of automated electron micro-probe analyzer - Gautam Sen (FIU, USA), Vincent Salters (Florida State University [FSU], USA), Michael Perfit (University of Florida, USA), Jacqueline Dixon (University of Miami [UM], USA); Shantanu Keshav (FIU, USA); 100,0000 US Dollars (National Science Foundation, USA)
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2002 - 2005 - Hawaiian lithosphere-asthenosphere interactions – Gautam Sen (FIU, USA); Co-PIs Vincent Salters (FSU, USA); Shantanu Keshav (FIU, USA); 350,000 US Dollars (National Science Foundation, USA)
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2013 - 2016 - Diamonds and mantle geodynamics; Steven Shirey (Carnegie Institution of Washington [CIW], Washington, DC, USA; PI); Co-PIs - Pierre Cartigny (France), Daniel Frost (Germany), Shantanu Keshav (France), Fabrizio Nestola (Italy), Paolo Nimis (Italy), Graham Pearson (Canada), Nikolai Sobolev (Russian Federation), Michael Walter (CIW); 500,000 US Dollars (Sloan Foundation, USA)