Directory

Rajdeep was born and raised in Kolkata (formerly Calcutta), India. He studied geology in the undergraduate days to try something different and to fulfill his passion for nature and chemistry. After finishing both BSc and MSc degree from Jadavpur University, India he moved to the PhD program in University of Minnesota, USA. He also held a two-year post-doctoral research fellow position in Columbia University before joining Rice University as a faculty member of Earth Science in 2008.

Ph.D. (Geology), University of Minnesota, USA - 2006
M.Sc. (Applied Geology), Jadavpur University, India - 2000
B.Sc. (Geological Sciences), Jadavpur University, India - 1998

James B. Macelwane Medal (American Geophysical Union) - 2014
Fellow of American Geophysical Union - 2014
Faculty Early CAREER Award (US National Science Foundation) - 2013
Hisashi Kuno Award (VGP Section of American Geophysical Union) - 2012
F. W. Clarke Medal (Geochemical Society) - 2011
Packard Fellowship for Science and Engineering - 2010
Lamont-Doherty Earth Observatory, Columbia University Institutional Post-doctoral fellowship - 2006

experimental petrology, geochemistry, mantle processes, magmatic processes, planetary differentiation, deep volatile cycles

Magmatic processes in various tectonic settings

Mantle melting

Planetary volcanism

Deep volatile cycles of Earth and other terrestrial planets

Origin of volatiles

Planetary differentiation

Carter, L. B. & Dasgupta, R. (2015). Hydrous basalt-limestone interaction at crustal conditions: Implications for generation of ultracalcic melts and outflux of CO2 at volcanic arcs. Earth and Planetary Science Letters 427, 202-214. doi:10.1016/j.epsl.2015.06.053

Duncan, M. S. & Dasgupta, R. (2015). Pressure and temperature dependence of CO2 solubility in hydrous rhyolitic melt – Implications for carbon transfer to mantle source of volcanic arcs via partial melt of subducting crustal lithologies. Contributions to Mineralogy and Petrology 169, 1-19. doi: 10.1007/s00410-015-1144-5

Tsuno, K. & Dasgupta, R. (2015). Fe-Ni-Cu-C-S phase relations at high pressures and temperatures – The role of sulfur in carbon storage and diamond stability at mid- to deep- upper mantle. Earth and Planetary Science Letters 412, 132-142. doi:10.1016/j.epsl.2014.12.018

Chi, H., Dasgupta, R., Duncan, M. S. & Shimizu, N. (2014). Partitioning of carbon between Fe-rich alloy melt and silicate melt in a magma ocean – implications for the abundance and origin of volatiles in Earth, Mars, and the Moon. Geochimica et Cosmochimica Acta 139, 447-471. doi:10.1016/j.gca.2014.04.046

Jégo, S. & Dasgupta, R. (2014). The fate of sulfur during fluid-present melting of subducting basaltic crust at variable oxygen fugacity. Journal of Petrology 55, 1019-1050. doi:10.1093/petrology/egu016

Ding, S., Dasgupta, R. & Tsuno, K. (2014). Sulfur concentration of martian basalts at sulfide saturation at high pressures and temperatures – implications for deep sulfur cycle on Mars. Geochimica et Cosmochimica Acta 131, 227-246. doi:10.1016/j.gca.2014.02.003

Mallik, A. & Dasgupta, R. (2013). Reactive infiltration of MORB-eclogite-derived carbonated silicate melt into fertile peridotite at 3 GPa and genesis of alkalic magmas. Journal of Petrology 54, 2267-2300. doi:10.1093/petrology/egt047

Dasgupta, R. (2013). Ingassing, storage, and outgassing of terrestrial carbon through geologic time. Reviews in Mineralogy and Geochemistry 75, 183-229. doi:10.2138/rmg.2013.75.7

Dasgupta, R., Mallik, A., Tsuno, K., Withers, A. C., Hirth, G. & Hirschmann, M. M. (2013). Carbon-dioxide-rich silicate melt in the Earth’s upper mantle. Nature 493, 211-215. doi:10.1038/nature11731

Mallik, A. & Dasgupta, R. (2012). Reaction between MORB-eclogite derived melts and fertile peridotite and generation of ocean island basalts. Earth and Planetary Science Letters 329-330, 97-108. doi:10.1016/j.epsl.2012.02.007

Tsuno, K. & Dasgupta, R. (2012). The effect of carbonates on near-solidus melting of pelite at 3 GPa: relative efficiency of H2O and CO2 subduction. Earth and Planetary Science Letters 319-320, 185-196. doi:10.1016/j.epsl.2011.12.007

Filiberto, J. & Dasgupta, R. (2011). Fe2+-Mg partitioning between olivine and basaltic melts: applications to genesis of olivine-phyric shergottites and conditions of melting in the Martian interior. Earth and Planetary Science Letters 304, 527-537. doi:10.1016/j.epsl.2011.02.029

Dasgupta, R. & Hirschmann, M. M. (2010). The deep carbon cycle and melting in Earth’s interior. Earth and Planetary Science Letters (Frontiers) 298, 1-13. doi:10.1016/j.epsl.2010.06.039

Dasgupta, R., Jackson, M. G. & Lee, C-T. A. (2010). Major element chemistry of ocean island basalts – conditions of mantle melting and heterogeneity of mantle source. Earth and Planetary Science Letters 289, 377-392. doi:10.1016/j.epsl.2009.11.027

Dasgupta, R., Buono, A., Whelan, G. & Walker, D. (2009). High-pressure melting relations in Fe-C-S systems: implications for formation, evolution, and structure of metallic cores in planetary bodies. Geochimica et Cosmochimica Acta 73, 6678-6691. doi:10.1016/j.gca.2009.08.001