Robert O. Pepin

School of Physics and Astronomy

University of Minnesota


Research interests are generally centered on the origin and evolutionary history of volatile elements and compounds in the solar system, with emphasis on the measurement and interpretation of isotopic signatures in the noble gases and nitrogen. Areas of particular interest include the isotopic history of the solar wind over the past 4.5 billion years, the composition of the primordial solar nebula, trapped gases in the SNC and other meteorites, and the evolutionary mechanisms responsible for driving noble gases in the atmospheres of Venus, Earth, and Mars from primordial distributions to their presently different compositional states.

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