Main Focus
Originally trained as a geologist, during my master’s and Ph.D. I delved into experimental petrology, with a focus on solid-Earth and planetary formation processes. During my Ph.D., I performed high-pressure, high-temperature experiments using a piston-cylinder apparatus, along with wet chemistry and mass spectrometry, to determine metal–silicate sulfur isotope fractionation. The objective was to explain the isotopic composition of Earth’s mantle. My expertise also encompasses lower-pressure experiments using sealed ampoules and higher-pressure experiments using a multi-anvil apparatus, as well as numerical and thermodynamic modeling relevant to core-formation processes. Currently, at MPS, I work on atmosphere formation on terrestrial planets and hot, rocky exoplanets within the ELMO project (Experimental Laboratory Magma Ocean).
Curriculum Vitae
Awards and fellowships:
2025: Best Student Talk award – Experimental Mineralogy, Petrology, and Geochemistry (EMPG) symposium
Education and Employment:
2026-ongoing: ELMO ERC postdoctoral fellow (MPS)
2025-2026: OriSulf ANR postdoctoral fellow (IPGP)
2022-2025: PhD student at Institut de Physique du Globe de Paris (IPGP)
2020-2022: MSc. in Experimental Geosciences student at Bayerisches Geoinstitut (BGI)
2011-2019: Lic. in geology student at National University of La Plata (UNLP)
Selected Publications:
Calvo, L., Labidi, J., Shahar, A., Kubik, E., Siebert, J., in press. Sulfur isotope fractionation during metal–silicate equilibration and implications for Earth’s mantle. Geochimica et Cosmochimica Acta.
doi:10.1016/j.gca.2026.09.042
Blanchard, I., Siebert, J., Calvo, L., Lobanov, S. S., Pinchon, C., Kubik, E., ..., Guignot, N. (2026). Core formation resolves Earth’s siderophile excess without a late veneer. Science Advances, 12(39), eaef0411.
doi:10.1126/sciadv.aef0411
Calvo, L., Siebert, J., Huang, D., Blanchard, I., Kubik, E., Bonino, V., ... & Labidi, J. (2026). Accretion of volatile elements on Earth without the need of a late veneer. Science advances, 12(9), eady8018.
doi:10.1126/sciadv.ady8018
Calvo, L., Chanyshev, A., Wang, F., Wang, L., Ishii, T., McCammon, C., Katsura, T. (2026). Chemistry of bridgmanite in the MgO-SiO2-Al2O3-FeO system at 27 GPa and 1700–2300K. American Mineralogist, 111(8), 1297-1307.
doi:10.2138/am-2025-9935
Blanchard, I., Siebert, J., Kubik, E., Minchenkova, A., Calvo, L., Wehr, N. (2025). Earth’s deep magma ocean never reached sulfide saturation. Geochemical Perspectives Letters, 34, 6-10.
doi:10.7185/geochemlet.2506