Early Earth and Deep Time

Sun and Dasgupta, 2023 EPSL

Sun, C.^ & Dasgupta, R. (2023). Carbon budget of the Earth’s deep mantle constrained by petrogenesis of silica-poor ocean island basalts. Earth and Planetary Science Letters 611:118135. doi:10.1016/j.epsl.2023.118135

Li et al., 2023 EPSL

Li, Y., Wiedenbeck, M., Monteleone, B., Dasgupta, R., Costin, G., Gao, Z. & Lu, W. (2023). Nitrogen and carbon fractionation in planetary magma oceans and origin of the superchondritic C/N ratio in the bulk silicate Earth. Earth and Planetary Science Letters 605:118032. doi:10.1016/j.epsl.2023.118032

Eguchi and Dasgupta, 2022 EPSL

Eguchi, J.* & Dasgupta, R. (2022). Cycling of CO2 and H2O constrained by experimental investigation of a model ophicarbonate at deep subduction zone conditions. Earth and Planetary Science Letters 600:117866. doi:10.1016/j.epsl.2022.117866

Grewal et al., 2022 GCA

Grewal, D.S.*, Sun, T., Aithala, S.’, Hought, T.’, Dasgupta, R., Yeung, L. & Schauble, E. (2022). Limited nitrogen isotopic fractionation during core-mantle differentiation in rocky protoplanets and planets. Geochimica et Cosmochimica Acta 338:347-364. doi:10.1016/j.gca.2022.10.025

Dasgupta et al., 2022 GCA

Dasgupta, R., Falksen, E.*, Pal, A.* & Sun, C.^ (2022). The fate of nitrogen during parent body partial melting and accretion of the inner Solar System bodies at reducing conditions. Geochimica et Cosmochimica Acta 336: 291-307. doi:10.1016/j.gca.2022.09.012

Dasgupta et al., 2022 RiMG

Dasgupta, R., Chowdhury, P.*, Eguchi, J.*, Sun, C.^ & Saha, S.* (2022). Volatile-bearing partial melts in the lithospheric and sub-lithospheric mantle on Earth and other rocky planets. Reviews in Mineralogy and Geochemistry 87:575-606. doi:10.2138/rmg.2022.87.12

Grewal et al., 2021 EPSL

Grewal, D.S.*, Dasgupta, R. & Aithala, S.’ & (2021). The effect of carbon concentration on its core-mantle partitioning behavior in inner Solar System rocky bodies. Earth and Planetary Science Letters. 571: 117090. doi:10.1016/j.epsl.2021.117090

Grewal et al., 2021 NatAstron

Grewal, D.S.*, Dasgupta, R., & Marty, B. (2021). A very early origin of isotopically distinct nitrogen in inner Solar System protoplanets. Nature Astronomy 5:356-364. doi:10.1038/s41550-020-01283-y

Grewal et al., 2020 GCA

Grewal, D. S.*, Dasgupta, R., & Farnell, A.' (2020). The speciation of carbon, nitrogen, and water in magma oceans and its effect on volatile partitioning between major reservoirs of the Solar System rocky bodies. Geochimica et Cosmochimica Acta 280: 281-301. doi:10.1016/j.gca.2020.04.023

Chu et al., 2019 AJS

Chu, X.*, Lee, C-T. A., Dasgupta, R., Cao, W. (2019). The contribution to exogenic CO2 by contact metamorphism at continental arcs: A coupled model of fluid flux and metamorphic decarbonation. American Journal of Science 319:631-657. doi:10.2475/08.2019.01

Dasgupta & Grewal, 2019 CUP

Dasgupta, R. & Grewal, D. S.* (2019). Origin and early differentiation of carbon and associated life-essential volatile elements on Earth. In Orcutt, B., Daniel, I., and Dasgupta, R. (Eds.) Deep Carbon: Past to Present. Cambridge University Press, Cambridge, pp. 4-39. doi:10.1017/9781108677950.002

Lee et al., 2019 CUP

Lee, C-T. A., Jiang, H., Dasgupta, R. & Torres, M. (2019). A framework for understanding whole Earth carbon cycling. In Orcutt, B., Daniel, I., and Dasgupta, R. (Eds.) Deep Carbon: Past to Present. Cambridge University Press, Cambridge, pp. 313-357. doi:10.1017/9781108677950.011

Grewal et al., 2019 GCA

Grewal, D.S.*, Dasgupta, R., Homes, A.+, Costin, G., Li, Y.^, Tsuno, K.^ (2019). The fate of nitrogen during core-mantle separation on Earth. Geochimica et Cosmochimica Acta 251: 87-115. doi:10.1016/j.gca.2019.02.009

Fuentes et al., 2019 EPSL

Fuentes, J., Crowley, J., Dasgupta, R., Mitrovica, J. (2019). The influence of plate tectonic style on melt production and CO2 outgassing flux at mid-ocean ridges. Earth and Planetary Science Letters 511: 154-163. doi:10.1016/j.epsl.2019.01.020

Grewal et al., 2019 Sci Adv

Grewal, D.S.*, Dasgupta, R., Sun, C.^, Tsuno, K.^, Costin, G. (2019). Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact. Science Advances 5: eaau3669. doi: 10.1126/sciadv.aau3669

Tsuno et al., 2018 GCA

Tsuno, K.^, Grewal, D.S.*, Dasgupta, R. (2018). Core-mantle fractionation of carbon in Earth and Mars: The effects of sulfur. Geochimica et Cosmochimica Acta 238: 477-495. doi: 10.1016/j.gca.2018.07.010