Audrey Bouvier, PhD
Research Associate in Cosmochemistry
Research Associate in Cosmochemistry
With samples back from space missions and remote observations,
meteorites are one of the most important tools that cosmochemists
have for studying the chemical nature and understanding
the origins of the solar system and formation of habitable planets.
University of Minnesota
Department of Earth Sciences 310 Pillsbury Drive SE Minneapolis, MN 55455-0231 USA e-mail: abouvierATumnDOTedu phone: 1-612-624-9598 office: Shepherd Labs 475
RESUME PUBLICATIONS TEACHING
I am an isotope cosmochemist working with the geochemistry group at UMN. I currently use my expertise in high resolution Al-Mg and U-Pb isotopic chronometry of early solar system objects such as refractory inclusions, chondrules or minerals from primitive meteorites to constrain the timing of accretion, thermal evolution and differentiation of planetoids as well as the origin of elements in the Solar System. Other of my research interests include the bulk composition of terrestrial planets (such as the Earth, the Moon and Mars) and their global differentiation and impact histories from Sm-Nd, Lu-Hf and Pb-Pb isotope systematics.
Research highlights:
- Starting in July 2013, I will be assistant professor in geochemistry at University of Western Ontario. Opportunities for M.Sc. or Ph.D. students interested in isotope geochemistry and cosmochemistry research in meteorites, planetary materials, and terrestrial impact craters will be available starting in Fall 2013. Contact me for further information.
- January 2013: “The age of the Solar System redefined by the oldest Pb–Pb age of a meteoritic inclusion” highlighted by Nature Geoscience editors as 1 of the 10 favourite papers in the web focus that celebrates the 5th anniversary of the journal http://www.nature.com/ngeo/focus/5th-anniversary/index.html
- August 2012: announcement as recipient of the Nier Prize 2013 from the Meteoritical Society!
More information: here.
- January 2012: ranked as the most cited paper published since 2007 in Earth and Planetary Science Letters journal
The Lu-Hf and Sm-Nd isotopic composition of CHUR: Constraints from unequilibrated chondrites and implications for the bulk composition of terrestrial planets
- January 2012: ranked 9 amongst the most cited papers published since 2007 in Geochimica Et Cosmochimica Acta journal
Pb-Pb dating constraints on the accretion and cooling history of chondrites
- December 2011: 2 research proposals selected this year for funding by the National Science Foundation and National Aeronautics and Space Administration!
- one amongst the oldest basalts of the Solar System dated at 4562.9 Ma suggests homogeneous distribution of 26Al within the protoplanetary disk
U-Pb and Al-Mg dating of the unique basaltic achondrite NWA 2976
- the age of the Solar System redefined by the oldest Pb-Pb age of a meteoritic inclusion
Nature Geoscience, v. 3, p. 637-641. DOI: 10.1038/NGEO941 (2010)
NWA 2364-B1 CAI Pb-Pb age is 4 568 200 000 years (+200 000/-400 000 years).
- The surface of Mars is old and so are shergottite meteorites
Earth and Planetary Science Letters, v. 280, p. 285-295 (2009)
Pb-Pb ages of shergottites are 4.1 and 4.3 Ga and suggest than younger U-Pb, Sm-Nd, Ar-Ar ages record recent impact events on the surface of Mars.
- Sm-Nd and Lu-Hf CHUR values revised using the most pristine set of chondrite meteorites.
Earth and Planetary Science Letters, v. 273, p. 48-57 (2008)
147Sm/144Nd = 0.1960 ± 0.0004 and 143Nd/144Nd = 0.512630 ± 0.000011
176Lu/177Hf = 0.0336 ± 0.0001 and 176Hf/177Hf = 0.282785 ± 0.000011