Richard J. Walker
Distinguished University Professor
Ph.D. S.U.N.Y. Stony Brook, 1984
8051 Regents Drive
College Park, MD 20742
rjwalker [at] umd [dot] edu
Application of radiogenic isotopes and trace elements, with emphasis on siderophile elements, to conduct research in several areas of geo- and cosmo-chemistry including the chemical evolution of Earth’s mantle, the formation and crystallization histories of early Solar System planetesimals, and the accretional and differentiation histories of the Earth, Moon and Mars.