Janne Blichert-Toft is a

geochemist Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the ...

, specializing in the use of

isotopes Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) ...

with applications in understanding planetary

mantle A mantle is a piece of clothing, a type of cloak. Several other meanings are derived from that. Mantle may refer to: *Mantle (clothing), a cloak-like garment worn mainly by women as fashionable outerwear **Mantle (vesture), an Eastern Orthodox ve ...

- crust evolution, as well as the chemical composition of matter in the universe. To further this research, Blichert-Toft has developed techniques for high-precision

Isotope-ratio mass spectrometry Isotope-ratio mass spectrometry (IRMS) is a specialization of mass spectrometry, in which mass spectrometric methods are used to measure the relative abundance of isotopes in a given sample. This technique has two different applications in the ea ...

measurements.

Biography

Education

*1990: M.Sc.,

University of Copenhagen The University of Copenhagen ( da, Københavns Universitet, KU) is a prestigious public university, public research university in Copenhagen, Copenhagen, Denmark. Founded in 1479, the University of Copenhagen is the second-oldest university in ...

*1991: research at the

Lamont–Doherty Earth Observatory The Lamont–Doherty Earth Observatory (LDEO) is the scientific research center of the Columbia Climate School, and a unit of The Earth Institute at Columbia University. It focuses on climate and earth sciences and is located on a 189-acre (64 h ...

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

*1993: Ph.D., Earth Sciences,

*1996:

École normale supérieure de Lyon The École normale supérieure de Lyon (also known as ENS de Lyon, ENSL or Normale Sup' Lyon) is a French grande école located in the city of Lyon. It is one of the four prestigious écoles normales supérieures in France. The school is ...

, Marie-Curie Post-Doctoral Fellow *2000: HDR, Université Claude Bernard, Lyon I. After her Marie-Curie post-doctorate, Blichert-Toft joined the CNRS in 1997 and became Director of Research in 2002 working at the

Work

After her Marie-Curie Post-Doctorate, Blichert-Toft joined the

Centre national de la recherche scientifique The French National Centre for Scientific Research (french: link=no, Centre national de la recherche scientifique, CNRS) is the French state research organisation and is the largest fundamental science Basic research, also called pure research o ...

(CNRS) in 1997 and became Director of Research in 2002, working at the

. She pioneered the application of

hafnium Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Its existence was predicted by Dmitri M ...

isotopes to the evolution of the Earth and the early solar system.

Publications

Blichert-Toft is currently

Editor Editing is the process of selecting and preparing written, photographic, visual, audible, or cinematic material used by a person or an entity to convey a message or information. The editing process can involve correction, condensation, orga ...

of two publications: *''G-Cubed'' (Geochemistry, Geophysics, Geosystems) published by the

American Geophysical Union The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's act ...

*''Geochemical Perspectives'' published by the

European Association of Geochemistry The European Association of Geochemistry (EAG) is a pan-European organization founded to promotes geochemical research. The EAG organizes conferences, meetings and educational courses for geochemists in Europe, including the Goldschmidt Conference w ...

She is Associate Editor of Geochimica et Cosmochimica Acta.

Awards

* 2001:

(CNRS) Bronze Medal * 2005: Prix Etienne Roth du Commissariat à l'énergie atomique (CEA),

Académie des Sciences The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research. It was at the ...

* 2010: Geochemistry Fellow of the Geochemical Society and the

* 2010: The Medal of the Ecole Normale Supérieure de Lyon * 2012: Fellow of the

* 2012: The CNRS Silver Medal * 2015: The Danish Geological Society's Steno Medal * 2015: Invited Plenary Speaker at the Goldschmidt Conference,

Prague Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate ...

* 2016

Royal Danish Academy of Sciences and Letters {{Infobox organization , name = The Royal Danish Academy of Sciences and Letters , full_name = , native_name = Det Kongelige Danske Videnskabernes Selskab , native_name_lang = , logo = Royal ...

member

References

{{DEFAULTSORT:Blichert-Toft, Janne Mass spectrometrists French volcanologists French geophysicists Women geophysicists French geochemists Fellows of the American Geophysical Union Living people University of Copenhagen alumni 20th-century American women scientists 21st-century American women scientists Year of birth missing (living people) École Normale Supérieure faculty American women academics Research directors of the French National Centre for Scientific Research