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Chargée de Recherche CNRS

Tel : (33) 3 83 59 42 26 ; Fax : (33) 3 83 51 17 98

e-mail Laurette Piani

Site perso :

Recherche/Research Interests

  • Origin and evolution of water in the Solar System (ANR HYDRaTE)
  • Light element (H, C, N, O) evolution in the early Solar System
  • Origin of organic matter in primitive meteorites (chondrites)
  • Sulfur and sulfide origin in chondrites
  • Formation of enstatite chondrites
  • PHOTONIS project (ERC grant led by Bernard Marty)


  • From 2018.10 - Chargée de recherche CNRS / CNRS researcher at CRPG, Nancy.
  • 2017.5 – 2018.9 - Post-doctoral fellow, CRPG, Nancy. Isotope Fractionation of Light Elements Upon Ionization, ERC Photonis (PI : Bernard Marty)
  • 2015.4 – 2017.3 - Lecturer, Cosmochemical laboratory, Department of Natural History Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan.
  • 2013.12- 2015.3 - Post-doctoral fellowship, Cosmochemical laboratory, Department of Natural History Sciences,Faculty of Science, Hokkaido University, Sapporo, Japan. Evolution of molecules in Space
  • 2012.5- 2013.7 - Post-doctoral fellow, CRPG, Nancy. Sulfur solubility in silicate melts : an observational and experimental study dedicated to chondrules in chondrites
  • 2012.3- 2008.12 - PhD, Museum National d’Histoire Naturelle (MNHN), Paris. Origin of volatile elements in the Solar System : organic matter and clays in chondrites. Advisors : F. Robert (CNRS-MNHN) and S. Derenne (CNRS-UPMC)


Publications CRPG


Bouden, N., Villeneuve, J., Marrocchi, Y., Deloule, E., Füri, E., Gurenko, A., et al. (2021). Triple oxygen isotope measurements by multi-collector secondary ion mass spectrometry. Frontiers in Earth Science, , 8:601169.
Hewins, R. H., Zanetta, P. M., Zanda, B., Le Guillou, C., Gattacceca, J., Sognzoni, C., et al. (2021). NORTHWEST AFRICA (NWA) 12563 and ungrouped C2 chondrites : Alteration styles and relationships to asteroids. Geochimica et Cosmochimica Acta, 311, 238–273.
Piani, L., Marrocchi, Y., Vacher, L. G., & Hurimoto, H. (2021). Origin of hydrogen isotopic variations in chondritic water and organics. Earth and Planetary Science Letters, , 117008.
Vernazza, P., Beck, P., Ruesch, O., Bischoff, A., Bonal, L., Brennecka, G., et al. (2021). Sample return of primitive matter from the outer Solar System. Experimental Astronomy, .


Marrocchi, Y., Bonal, L., Gattacceca, J., Piani, L., Beck, P., Greenwood, R., et al. (2020). The Piancaldoli meteorite : A forgotten primitive LL3.10 ordinary chondrite. Meteoritics & Planetary Science, 55(8), 1924–1935.
Piani, L., Marrocchi, Y., Rigaudier, T., Vacher, L. G., Thomassin, D., & Marty, B. (2020). Earth’s water may have been inherited from material similar to enstatite chondrite meteorites. Science, 369(6507), 1110–1113.
Piralla, M., Marrocchi, Y., Verdier-Paoletti, M. J., Vacher, L. G., Villeneuve, J., Piani, L., et al. (2020). Primordial water and dust of the Solar System: Insights from in situ oxygen measurements of CI chondrites. Geochimica et Cosmochimica Acta, 269, 451–464.
Vacher, L., Piani, L., Rigaudier, T., Thomassin, T., Florin, G., Piralla, M., et al. (2020). Hydrogen in chondrites: Influence of parent body alteration and atmospheric contamination on primordial components. Geochimica et Cosmochimica Acta, 281, 53–66.


Dalou, C., Füri, E., Deligny, C., Piani, L., Caumon, G., Laumonier, B., et al. (2019). Redox control on nitrogen isotope fractionation during planetary core formation. Proceedings of the National Academy of Sciences of the United States of America, .
Isono, Y., Tachibana, S., Naraoka, H., Orthous-Daunay, F. R., Piani, L., & Kebukawa, Y. (2019). Bulk chemical characteristics of soluble polar organic molecules formed through condensation of formaldehyde: Comparison with soluble organic molecules in Murchison meteorite. Geochemical Journal, 53, 41–51.
Kouchi, A., Tachibana, S., Piani, L., Orthous-Daunay, F. R., & Naraoka, H. (2019). Preface: Evolution of molecules in space: From interstellar clouds to protoplanetary nebulae. Geochemical Journal, 53(1), 1–3.
Marrocchi, Y., & Piani, L. (2019). The tumultuous childhood of the Solar System. Nature Astronomy, 3(10), 889–890.
Orthous-Daunay, F. R., Piani, L., Flandinet, L., Thissen, R., Wolters, C., Vuitton, V., et al. (2019). Ultraviolet-photon fingerprints on chondritic large organic molecules. Geochemical Journal, 53(32), 21–32.


Jacquet, E., Piani, L., & Weisberg, M. K. (2018). Chondrules in enstatite chondrites. Chapter of chondrules: Records of protoplanetary disk processes.. Cambridge Russel, S.S.; Connolly, H.C.; Krot, A.N.
Marrocchi, Y., Bekaert, D. V., & Piani, L. (2018). Origin and abundance of water in carbonaceous asteroids. Earth and Planetary Science Letters, 482, 23–32.
Marrocchi, Y., Villeneuve, J., Batanova, V., Piani, L., & Jacquet, E. (2018). Oxygen isotopic diversity of chondrule precursors and the nebular origin of chondrules. Earth and Planetary Science Letters, 496, 132–141.
Piani, L., & Marrocchi, Y. (2018). Hydrogen isotopic composition of water in CV-type carbonaceous chondrites. Earth and Planetary Science Letters, 504, 64–71.
Piani, L., Yurimoto, H., & Remusat, L. (2018). A dual origin for water in carbonaceous asteroids revealed by CM chondrites. Nature Astronomy, (2), 317–323.


Tachibana, S., Kouchi, A., Hama, T., Oba, Y., & Piani, L. (2017). Liquid-like behavior of UV-irradiated interstellar ice analog at low temperatures. Science Advances, 3(9), eaao2538.


Marrocchi, Y., Chaussidon, M., Piani, L., & Libourel, G. (2016). Early scattering of the solar protoplanetary disk recorded in meteoritic chondrules. Science Advances, .
Piani, L., Marrocchi, Y., Libourel, G., & Tissandier, L. (2016). Magmatic sulfides in the porphyritic chondrules of EH enstatite chondrites. Geochimica et Cosmochimica Acta, 195, 84–99.


Piani, L., Robert, F., Beyssac, O., Binet, L., Bourot-Denise, M., Derenne, S., et al. (2012). Structure, composition, and location of organic matter in the enstatite chondrite Sahara 97096 (EH3). Meteoritics & Planetary Science, 47(1), 8–29.

Autres publications/Other publications


  • Jacquet E., Piani L., Weisberg M. K. Chondrules in enstatite chondrites. Chapter of ’Chondrules : Records of Protoplanetary Disk Processes’ published by Cambridge University Press by eds. S. Russell, A. N. Krot and H. C. Jr. Connolly, 2018.


  • Tachibana S., Kouchi A., Hama T., Oba Y., Piani L., Sugawara I., Endo Y., Hidaka H., Kimura Y., Murata KI., Yurimoto H., and Watanabe N., Sept. 2017. Liquid-like behavior of UV-irradiated interstellar ice analog at low temperatures. Science Advances Vol. 3, no.9. DOI : 10.1126/sciadv.aao2538
  •  Piani L., Tachibana S., Hama T., Tanaka H., Endo Y., Sugawara I., Dessimoulie L., Kimura Y., Miyake A., Matsuno J., Tsuchiyama A., Fujita K., Nakatsubo S., Fukushi H., Mori S., Chigai T., Yurimoto H. and Kouchi A., 2017. Evolution of morphological and physical properties of laboratory interstellar organic residues with ultraviolet irradiation. Astrophysical Journal, 837:35. doi : 10.3847/1538-4357/aa5ca6 


  • Remusat L., Piani L., Bernard S., 2016. Thermal recalcitrance of the organic D-rich component of ordinary chondrites. Earth and Planetary Science Letters 435, 36–44. doi:10.1016/j.epsl.2015.12.009


  • Piani L., Robert F., Remusat L., 2015. Micron-scale D/H heterogeneity in chondrite matrices : A signature of the pristine solar system water ? Earth and Planetary Science Letters 415, 154-164. doi:10.1016/j.epsl.2015.01.039


  • Piani L., Remusat L., Robert F. Determination of the H isotopic composition of individual components in fine-scale mixtures of organic matter and phyllosilicates with the NanoSIMS. Analytical Chemistry, 2012, 84 (23), 10199-10206. doi : 10.1021/ac301099u.


  • Coustenis A., Jennings,D. E., Nixon C. A., Achterberg R. K., Lavvas P., Vinatier S., Teanby N. A., Bjoraker G. L., Carlson R. C., Piani L., Bampasidis G., Flasar F. M., Romani P. N. Titan trace gaseous composition from CIRS at the end of the Cassini-Huygens prime mission, Icarus, 2010, 207, 461-476. doi:10.1016/j.icarus.2009.11.027


  • October 2017 & 2018 – Water and organic matter in the Solar System (2 hrs.) for master course students (CRPG, Nancy, France)
  • October 2016 / February 2017 – History of Geology (16 x 1.5 hrs with Marie Python) for the first-year students of Hokkaido University (Sapporo, Japan).
  • June 2016 – Meteorites : witnesses of the Solar System history (1.5 hr) for the 2nd-year students of the Faculty of Science (Hokkaido University, Sapporo).
  • Oct. 2015 – Hydrogen isotopic composition in the solar system (1.5 hr) for Master course students (Hokkaido University, Sapporo).
  • June 2013 – Ion probe course (4 hrs.) for a PhD student training for mass spectrometry techniques (CRPG, Nancy, France)
  • February 2012 – Organic matter in the Solar System (2 hrs.) for undergraduate students (CRPG, Nancy, France)
  • 2008 – 2012 Instructor for undergraduate students (192 hrs.) at the University of Pierre and Marie Curie (UPMC), Paris VI, France. Earth Sciences (general introduction for first-year students), Magmatic Petrology for third-year students (tutorials and practical classes), Geochemistry for second- and third-year students.

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