Janne Blichert-Toft, CNRS research director at the Geology Laboratory of Lyon, is the winner of the Dolomieu 2022 prize.
© Académie des sciences
The BRGM Dolomieu Prize was awarded by the French Académie de Sciences on 18 October 2022 to Janne Blichert-Toft, CNRS research director at the Geology Laboratory of Lyon (CNRS/Université Claude Bernard Lyon 1/ENS Lyon).
Janne Blichert-Toft, world leader in the application of isotope geochemistry
Janne Blichert-Toft is a world leader in the use of isotope geochemistry to answer key scientific questions about the origin of the Earth and planetary bodies by extending it to geo-archaeology and numismatics. Her work has focused on understanding the crust-mantle differentiation during the formation of the planet, as well as the chemical composition of matter in the Universe.
In particular, she was a pioneer in the study of the Lutetium-Hafnium (Lu-Hf) radiogenic system, which can be used to date the formation of minerals such as zircons found in billion-year-old terrestrial rocks or materials from the Universe (meteorites, etc.). Her work on high-precision isotopes has helped to better characterise the formation and evolution of the Earth and the early solar system.
The BRGM Dolomieu Prize for Earth Science research
The Dolomieu Prize, founded in 1998, is awarded for outstanding research in the Earth Sciences, alternating each year between fundamental (in 2022) and applied research (in 2023), to one or more researchers or engineers in France or the European Community. The prize is worth €15,250.