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Chargé de Recherche CNRS

Tel : (33) 3 83 59 42 23 ; Fax : (33) 3 83 51 17 98

e-mail Guillaume Caro

Recherche/ Research interests

  • Geochemical investigations of planetary differentiation processes (Earth, Mars, Moon) using short-lived and long-lived isotopic systems (146Sm-142Nd, 147Sm-143Nd, 176Lu-176Hf and 40K-40Ca)
  • Chronology and processes involved in the evolution of the mantle-crust system during the first billion years
  • Investigations of global geochemical cycles in the early Earth using the Archean sedimentary record
  • Development of novel isotope techniques using high precision mass spectrometry


  • 2001 : M.Sc. Geochemistry, Institut de Physique du Globe de Paris
  • 2005 : Ph.D. Geochemistry, Institut de Physique du Globe de Paris. Thesis Title : 146Sm-142Nd constraints on very early Earth differentiation
  • 2005 - 2007 Postdoc, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena (USA)
  • 2008 - CNRS Research Scientist, Centre de Recherches Pétrographiques et Géochimiques, Nancy


Publications CRPG


Morino, P., Caro, G., Reisberg, L., & Schumacher, A. (2017). Chemical stratification in the post-magma ocean Earth inferred from coupled 146,147Sm–142,143Nd systematics in ultramafic rocks of the Saglek block (3.25–3.9 Ga; northern Labrador, Canada. Earth and Planetary Science Letters, 463, 136–150.


Caro, G., Morino, P., Mojzsis, S. J., Cates, N. L., & Bleeker, W. (2016). Sluggish Hadean geodynamics: Evidence from coupled 146,147Sm-142,143Nd systematics in Eoarchean supracrustal rocks of the Inukjuak domain (Québec). Earth and Planetary Science Letters, 457, 23–37.


Davenport, J., Caro, G., & France-Lanord, C. (2014). Tracing silicate weathering in the Himalaya using the 40K-40Ca system: A reconnaissance study. Procedia Earth and Planetary Science, 10, 238–242.


Caro, G. (2011). Early silicate earth differentiation. Annual Review of Earth and Planetary Science, 39, 31–58.


Caro, G., & Bourdon, B. (2010). Non-chondritic Sm/Nd ratio in the terrestrial planets: Consequences for the geochemical evolution of the mantle-crust system. Geochimica et Cosmochimica Acta, 74(11), 3333–3349.
Caro, G., & Kleine, T. (2010). Extinct radionuclides and the origin of the Earth and Moon. In In: Timescales of magmatic processes: From Core to Atmosphere (pp. 9–51). Dosseto, A.; Turner, S.; Van Orman, J.A. Blackwell Scientific Publications.

Autres publications/Other publications


Bourdon, B., Touboul, M., & Caro, G. (2008). Early differentiation of the Earth and the Moon. Philosophical Transactions of the Royal Society of London, 366, 4105–4128.

Caro, G., Bennett, V. C., Bourdon, B., Harrison, T. M., von Quadt, A., Mojzsis, S. J., et al. (2008). Application of precise 142Nd/144Nd analysis of small samples to inclusions in diamonds (Finsch, South Africa) and Hadean Zircons (Jack Hills, Western Australia). Chemical Geology, 247, 253–265.

Caro, G., Bourdon, B., Halliday, A. N., & Quitté, G. (2008). Super-chondritic Sm/Nd ratios in Mars, the Earth and the Moon. Nature, 436, 246–249.


Bourdon, B., & Caro, G. (2007). The early terrestrial crust. Comptes Rendus Géosciences, 339, 928–936.


Caro, G., Bourdon, B., Birck, J. L., & Moorbath, S. (2006). High-precision 142Nd/144Nd measurements in terrestrial rocks : Constraints on the early differentiation of the Earth’s mantle. Geochimica et Cosmochimica Acta, 70, 164–191.


Caro, G., Bourdon, B., Wood, B. J., & Corgne, S. (2005). Trace element fractionation in Hadean mantle generated by melt segregation from a magma ocean. Nature, 436, 246–249.


Caro, G., Kopylova, M. G., & Creaser, R. (2004). The hypabyssal kimberlite of the Gahcho Kue cluster, Southeastern Slave craton, Northwest Territories, Canda : A granite contaminated Group-1 kimberlite. Canadian Mineralogist, 42, 183–207.

Kopylova, M. G., & Caro, G. (2004). Mantle xenoliths from the Southeastern Slave craton : Evidence for chemical zonation in a thick cold lithosphere. Journal of Petrology, 45(5), 1045–1067.


Caro, G., Bourdon, B., Birck, J. L., & Moorbath, S. (2003). 146Sm-142Nd evidence from Isua metamorphosed sediments for early differentiation of the Earth’s mantle. Nature, 423, 428–432.

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