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Maître de conférences, Université de Lorraine

Tel : (33) 6 51 25 84 58 ; Fax : (33) 3 83 51 17 98

Emilie Thomassot

Recherche / Research Interests

  • Eléments volatils dans le manteau terrestre
  • Conditions environnementales à la surface de la jeune Terre


Actuellement en mission au sein du laboratoire géosciences de l’université de Montpellier - Tel : 33 (0)467 143 93

2018/2019- Professeur invité - ETH Zurich

Depuis 2009 - Maître de Conférences à l’ENSG

2006 - Thèse : Origine et formation des diamants dans le manteau supérieur terrestre : apport d’une systématique multi-isotopique (carbone, azote et soufre) - IPGP - Sous la direction de Pierre Cartigny & Marc Javoy



Gress, M. U., Koornneef, J. M., Thomassot, E., Chinn, I. L., van Zuilen, K., & Davies, G. R. (2021). Sm-Nd isochron ages coupled with C-N isotope data of eclogitic diamonds from Jwaneng, Botswana. Geochimica et Cosmochimica Acta, 293, 1–17.


Barré, G., Strzerzynski, P., Michels, R., Guillot, S., Cartigny, P., Thomassot, E., et al. (2020). Tectono-metamorphic evolution of an evaporitic décollement as recorded by mineral and fluid geochemistry : The “Nappe des Gypses” (Western Alps) case study. Lithos, 358-359, 105419.
Castillo-Olivier, M., Giuliani, A., Griffin, W. L., O'Reilly, S. Y., Drysdale, R. N., Abersteiner, A., et al. (2020). New constraints on the source, composition, and post‑emplacement modification of kimberlites from in situ C–O–Sr‑isotope analyses of carbonates from the Benfontein sills (South Africa). Contributions to Mineralogy and Petrology, 175(33).
Howell, D., Stachel, T., Stern, R. A., Pearson, D. G., Nestola, F., Hardman, M. F., et al. (2020). Deep carbon through time : Earth’s diamond record and its implications for carbon cycling and fluid speciation in the mantle. Geochimica et Cosmochimica Acta, 275, 99–122.
Liu, J., Graham Pearson, D., Shu, Q., Sigurdsson, H., Thomassot, E., & Alard, O. (2020). Dating post-Archean lithospheric mantle: Insights fromRe-Os and Lu-Hf isotopic systematics of the CameroonVolcanic Line peridotites. Geochimica et Cosmochimica Acta, 278, 177–198.
Lorand, J. P., Labidi, J., Rollion-Bard, C., Thomassot, E., Bellucci, J. J., Whitehouse, M., et al. (2020). The sulfur budget and sulfur isotopic composition of Martian regolith breccia NWA 7533. Meteoritics & Planetary Science, 55(9), 2097–2116.


Fitzpayne, A., Giuliani, A., Harris, C., Thomassot, E., Cheng, C., & Hergt, J. (2019). Evidence for subduction-related signatures in the southern African lithosphere from the N-O isotopic composition of metasomatic mantle minerals. Geochimica et Cosmochimica Acta, 266, 237–257.
Liu, J., Pearson, G. D., Shu, Q., Sigurso, H., Thomassot, E., & Alard, O. (2019). Dating post-Archean lithospheric mantle: Insights from Re-Os and Lu-Hf isotopic systematics of the Cameroon Volcanic Line peridotites, In Press.
Shirey, S. B., Smit, K. V., Pearson, D. G., Walter, M. J., Aulbach, S., Brenker, F. E., et al. (2019). Diamonds and the mantle geodynamics of carbon deep mantle carbon evolution from the diamond record. In B. Orcutt, I. Daniel, R. Dasguta (Eds.). In Deep Carbon: Past to Present (pp. 89–128).
Vézinet, A., Thomassot, E., Pearson, D. G., Stern, R. A., Luo, Y., & Sarkar, C. (2019). Extreme δ18O signatures in zircon from the Saglek Block (North Atlantic Craton) document reworking of mature supracrustal rocks as early as 3.5 Ga. Geology, 47(7), 605–608.


Griffin, W. L., Huang, J. X., Thomassot, E., Gain, S. E. M., Toledo, V., & O'Reilly, S. Y. (2018). Super-reducing conditions in ancient and modern volcanic systems: sources and behaviour of carbon-rich fluids in the lithospheric mantle. Mineralogy and Petrology, 112(1), 101–114.
Nicoli, G., Thomassot, E., Schannor, M., Vezinet, A., & Jovovic, I. (2018). Constraining a Precambrian Wilson Cycle lifespan: An example from the ca. 1.8 Ga Nagssugtoqidian Orogen, Southeastern Greenland. Lithos, 296-299, 1–16.
Vezinet, A., Pearson, D. G., Thomassot, E., Stern, R. A., Sarkar, C., Luo, Y., et al. (2018). Hydrothermally-altered mafic crust as source for early Earth TTG: Pb/Hf/O isotope and trace element evidence in zircon from TTG of the Eoarchean Saglek Block, N. Labrador. Earth and Planetary Science Letters, 503, 95–107.


D'Eyrames, E., Thomassot, E., Kitayama, Y., Golovin, A., Korsakov, A., & Ionov, D. (2017). A mantle origin for sulfates in the unusual “salty” Udachnaya-East kimberlite from sulfur abundances, speciation and their relationship with groundmass carbonates. Bulletin de la Société Géologique de France, .
Kitayama, Y., Thomassot, E., Galy, A., Golovin, A., Korsakov, A., D'Eyrames, E., et al. (2017). Co-magmatic sulfides and sulfates in the Udachnaya-East pipe (Siberia): A record of the redox state and isotopic composition of sulfur in kimberlites and their mantle sources. Chemical Geology, 455, 315–330.


Delavault, H., Chauvel, C., Thomassot, E., Devey, C., & Dazas, B. (2016). Sulfur and lead isotopic evidence of relic Archean sediments in the Pitcairn mantle plume. Proceedings of the National Academy of Sciences of the United States of America, .


Thomassot, E. (2015). Mass spectrometry finds traces of the earliest atmosphere on Earth. Trends in Analytical Chemistry, 66, iv-ix.
Thomassot, E., O'Neil, J., Francis, D., Cartigny, P., & Wing, B. A. (2015). Atmospheric record in the Hadean Eon from multiple sulfur isotope measurements in Nuvvuagittuq Greenstone Belt (Nunavik, Quebec). Proceedings of the National Academy of Sciences, (1).


Cartigny, P., Palot, M., Thomassot, E., & Harris, J. W. (2014). Diamond formation: A stable isotope perspective. Annual Review of Earth and Planetary Science, 42, 699–732.
Truche, L., Bazarkina, E. F., Barré, G., Thomassot, E., Berger, G., Dubessy, J., et al. (2014). The role of S−3 ion in thermochemical sulphate reduction: Geological and geochemical implications. Earth and Planetary Science Letters, 396, 190–200.


Kitayama, Y., Thomassot, E., O'Neil, J., & Wing, B. A. (2012). Sulfur- and oxygen-isotope constraints on the sedimentary history of apparent conglomerates from the Nuvvuagittuq Greenstone Belt (Nunavik, Québec). Earth and Planetary Science Letters, 355-356, 271–282.


Thomassot, E., Cartigny, P., Harris, J. W., Lorand, J. P., Rollion-Bard, C., & Chaussidon, M. (2009). Metasomatic diamond growth: A multi-isotope study (13C, 15N, 33S, 34S) of sulphide inclusions and their host diamonds from Jwaneng (Botswana). Earth and Planetary Science Letters, 282(1-4), 79–90.

(non spécifié)

Liu, J., Pearson, G. D., Shu, Q., Sigurso, H., Thomassot, E., & Alard, O. Dating post-Archean lithospheric mantle: Insights from Re-Os and Lu-Hf isotopic systematics of the Cameroon Volcanic Line peridotites, In Press.

Enseignement / Teaching

Thesis supervision :

  • Yumi Kitayama : Isotopic fingerprints of Archean supracrustal recycling in Siberian kimberlites (Albert Galy, co-direction)

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