Soumya Ray (Ph.D. Candidate, School of Earth and Space Exploration) M.Sc. University of Delhi (2012) – Soumya is measuring the Fe isotope fractionation in achondrite meteorites, as well as analyzing their Si isotope composition, in the ultra clean Isotope Cosmochemistry and Geochronology Laboratory. Her Fe isotope work on aubrites, in particular, has provided new insight into the formation of metal nodules in these unique meteorites.
Zachary Torrano (Ph.D. Candidate, School of Earth and Space Exploration) B.S. University of Notre Dame (2015) – Zachary Torrano measures the isotopic composition of calcium-aluminum-rich inclusions (CAIs), which were the first solids formed in the early Solar System and therefore preserve a record of the earliest epoch in the evolution of the solar protoplanetary disk. His work includes Cr, Ti, and Mg stable isotope analyses to investigate the heterogeneity of the CAI-forming region. Future Pb-Pb and Al-Mg analyses will provide high-resolution constraints on formation timescales for these solids.