Indian Institute of Technology Kharagpur |

My research focuses on investigating the behavior of Earth materials under extreme pressure and temperature conditions to unravel the fundamental processes that govern the evolution and dynamics of our planet's interior. With a foundation in experimental petrology and mineral physics, I have developed a multidisciplinary approach to explore the behavior of minerals and melts at high pressures and temperatures, using advanced laboratory techniques and synchrotron-based analytical tools.
My work has contributed significantly to understanding the behavior of carbonated melts, volatile elements (H, C), and the stability of high-pressure phases within Earth's deep mantle. I have conducted high-pressure experiments, leveraging techniques such as piston-cylinder apparatus and multi-anvil presses, alongside synchrotron radiation studies, to simulate conditions deep within the Earth. By characterizing phase transitions and reactions, I have deciphered the implications of these processes for mantle dynamics, magma genesis, and the Earth's geodynamic history.
Furthermore, I have extended my research to the investigation of meteoritic materials, which provide unique insights into the formation and evolution of our solar system. My recent work on natural aluminous bridgmanite in meteorites sheds light on the conditions and processes associated with the early stages of planetary differentiation.
My expertise also encompasses mentoring and supervising graduate students, leading them in their exploration of topics related to mantle behavior, mineralogy, and geochemistry. As an editorial board member and associate editor of esteemed geoscience journals (JGR-Solid Earth, High Pressure Research, Journal of Mineralogical and Petrological Sciences), I contribute to the advancement of scientific knowledge by facilitating rigorous peer-review processes.
Moving forward, I am committed to advancing our understanding of the deep Earth through innovative experimental techniques, continued collaboration with international researchers, and the dissemination of knowledge through publications and academic activities. My research has implications for a wide range of geoscience disciplines, from understanding mantle convection and geochemical cycling to shedding light on planetary formation processes.

All Publications

Solidus of carbonated peridotite from 10 to 20 GPa and origin of magnesiocarbonatite melt in the Earth s deep mantle Ghosh, S, Ohtani, E, Litasov, K, Terasaki, H By Chemical Geology 263 17-28 (2009)
Plume activity and carbonated silicate melt metasomatism in Dharwar cratonic lithosphere: Evidence from peridotite xenoliths in Wajrakarur kimberlites Ghosh S. K. By Lithos 376-377C 105726- (2020)
Effect of water in depleted mantle on post-spinel transition and implication for 660 km seismic discontinuity at the Earth's mantle Ghosh, S, Ohtani, E, Litasov, K, Suzuki, A, Dobson, D, Funakoshi, K By Earth and Planetary Science Letters 371 103-111 (2013)
Phase relations and melting of carbonated peridotite between 10 and 20 GPa: a proxy for alkali-and CO2-rich silicate melts in the deep mantle S Ghosh, K Litasov, E Ohtani By Contributions to Mineralogy and Petrology 167 (2) 1-23 (2014)
Melting of phase D in the lower mantle and implications for recycling and storage of H 2 O in the deep mantle S Ghosh, MW Schmidt By Geochimica et Cosmochimica Acta 145 72-88 (2014)
The stability of Fe-Ni carbides in the Earth's mantle: evidence for a low Fe-Ni-C melt fraction in the deep mantle A Rohrbach, S Ghosh, MW Schmidt, CH Wijbrans, S Klemme By Earth and Planetary Science Letters 388 211-221 (2014)
The pyroxenite-diamond connection ES Kiseeva, BJ Wood, S Ghosh, T Stachel By Geochemical Perspectives Letters 2 1-9 (2016)
Evolution of grain sizes and orientations during phase transitions in hydrous Mg2SiO4 AD Rosa, N Hilairet, S Ghosh, JP Perrillat, G Garbarino, S Merkel By ournal of Geophysical Research: Solid Earth - (2016)
First principles prediction of Si doped Fe carbide as one of the possible constituents of Earth's inner core Das T., Chatterjee S. , Ghosh S. K., Saha-dasgupta T. By Geophysical Research Letters 44 (17) 8776-8784 (2017)
CO2-rich melts in Earth Ghosh S. K. By Deep Carbon: Past to Present 129-162 (2019)

Completed Projects

Principal Investigator

Formation of High-pressure Phases in Katol and Kamargaon Meteorites from India
Partial melting of carbonated pyroxenite: Implication for genesis of ocean island basalts

Alumni members