Asmaa Boujibar, PhD

She/Her/Hers, Assistant Professor


Dr. Asmaa Boujibar is an assistant professor of Planetary Science. She recently joined both Geology Department and Physics & Astronomy Department of Western Washington University. She received her Ph.D. in 2014 from the Université Clermont Auvergne in France. She was a NASA postdoctoral fellow at the Johnson Space Center (2014-2016), then a Carnegie fellow at the Carnegie Institution for Science (2016-2021). Her research focuses on the formation of terrestrial planets in our Solar System and beyond, and the raw materials from which they form. Her projects use experiments in the laboratory and numerical modeling to replicate the high pressure and temperature conditions of planetary growth. She also applies machine learning algorithms, to improve our understanding of the formation of meteorite components and the chemical reactions occurring during planetary differentiation.

Educational & Professional Experience:

Ph.D. -  Université Clermont Auvergne, Clermont-Ferrand, France (2014)

M.S. - Université Clermont Auvergne, Clermont-Ferrand, France (2010)

B.S. - Université de Rennes 1, Rennes, France (2008)

Recent Publications:

Chiama K., Gabor M., Lupini I., Rutledge R., Nord J. A., Zhang S., Boujibar A., Bullock E. S., Walter M. J., Lehnert K., Spear F., Morrison S. M., Hazen R. M., The secret life of garnets: A comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis, 2023, Earth System Science Data, 15: 4235–4259.

Nittler L. R., Boujibar A., Crapster-Pregont E., Frank E. A., McCoy T. J., McCubbin F. M., Starr R. D., Vorburger A., Weider S. Z., Chromium on Mercury: New results from the MESSENGER X-Ray Spectrometer and implications for the innermost planet’s geochemical evolution, 2023, Journal of Geophysical Research: Planets, 128.

Righter K., Boujibar A., Humayun M., Yang S., Rowland II R., Pando K., Activity model for 36 elements in Fe-Ni-Si-S-C liquids with application to terrestrial planet accretion and mantle geochemistry: new data for Ru, Re, Pt, Os, Ti, Nb, and Ta, 2023, Geochimica Cosmochimica Acta, 354:211-228.

Hystad G., Boujibar A., Liu N., Nittler L. R., Hazen R. M., Evaluation of the classification of pre-solar silicon carbide grains using consensus clustering with resampling methods: An assessment of the confidence of grain assignments, 2022, Monthly Notices of the Royal Astronomical Society, 510: 334–350.

Fei Y., Seagle C. T., Townsend J. P., McCoy C. A., Boujibar A., Driscoll P., Shulenburger L., Furnish M. D., Melting and density of MgSiO3 determined by shock compression of bridgmanite to 1254 GPa, 2021, Nature Communications, 12, 876.

Boujibar A., Howell S., Zhang S., Hystad G., Prabhu A., Liu N., Stephan T., Narkar S., Eleish A., Morrison, S. M., Hazen R. M., Nittler L. R., Cluster analysis of presolar silicon carbide grains: evaluation of their classification and astrophysical implications, 2021, Astrophysical Journal Letters, 907, L39.

Righter K., Herd C. D., Boujibar A., Redox processes in early Earth accretion and in terrestrial bodies, 2020, Elements, 16: 161-166.

Boujibar A., Driscoll P., Fei Y., Internal structure, initial heat and magnetic field generation in super-Earths, 2020, JGR-Planets, 125: 1-11.

Boujibar A., Righter K., Bullock E., Du Z., Fei Y., Segregation of Na, K, Rb and Cs into the cores of Earth, Mars and Vesta constrained with partitioning experiments, 2020, Geochimica Cosmochimica Acta, 269: 622-638.

Boujibar A., Habermann M., Righter K., Ross D. K., Pando K., Righter M., Chidester B., Danielson L., U, Th and K partitioning between metal, silicate and sulfide and implications for Mercury's structure, volatile content and radioactive heat production, 2019, American Mineralogist, 104: 1221-1237.

Du Z., Boujibar A., Driscoll P., Fei Y., Experimental constrains on an MgO exsolution-driven geodynamo, 2019, Geophysical Research Letters, 46:13.

Righter K., Pando K., Humayun M., Waeselmann N., Yang S., Boujibar A., Danielson L., Effect of silicon on activity coefficients of siderophile elements (Au, Pd, Pt, P, Ga, Cu, Zn, and Pb) in liquid Fe: Roles of core formation, late sulfide matte and late veneer in shaping terrestrial mantle geochemistry, 2018, Geochimica Cosmochimica Acta, 232:101-123.

Andrault D., Bolfan-Casanova N., Bouhifd M. A., Boujibar A., Mezouar M., Monteux J., Parisiadis P., Pesce G., Toward a coherent mineralogical model for the melting behavior of the deep Earth’s mantle, 2017, Physics of the Earth and Planetary Interiors, 265: 67-81.

Bouhifd M. A., Clesi V., Boujibar A., Bolfan-Casanova N., Cartier C., Hammouda T., Boyet M., Manthilake G., Monteux J., Andrault D., Silicate Melts during Earth's Core formation, 2017,  Chemical Geology, 461: 128-139,

Righter K. Nickodem K., Pando K., Danielson L., Boujibar A., Righter M., Lapen T., Distribution of Sb, As, Ge, and In between metal and silicate during accretion and core formation in the Earth, 2017, Geochimica et Cosmochimica Acta, 198: 1-16.

Boujibar A., Andrault D., Bolfan-Casanova N., Bouhifd M. A., Trcera N., Incorporation of Fe2+ and Fe3+ in bridgmanite during magma ocean crystallization, 2016, American Mineralogist, 101: 1560-1570.

Shimojuku A., Boujibar A., Yamazaki D., Yoshino T., Tomioka N, Xu J., Growth of ringwoodite reaction rims from perovskite and periclase at 22.5 GPa and 1800 °C, 2014, Physics and Chemistry of Minerals, 41: 555-567.

Boujibar A., Andrault D., Bouhifd M. A., Bolfan-Casanova N., Devidal J-L., Trcera N., Metal-silicate partitioning of sulfur, new experimental and thermodynamical constraints on planetary accretion, 2014, Earth and Planetary Science Letters, 391: 42-54

Research Advising Category