Audrey Bouvier, PhD
        Research Associate         umn



audreyNYC2010University 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 Lab 475              

RESUME          PUBLICATIONS             TEACHING

                                                           

       
          

      I am an isotope geo/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.


Recent research highlights:

- 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
                            
                                                                                                                   

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