The noble gases play an important role in our understanding of Earth’s accretion, its subsequent differentiation, and the formation of the atmosphere. Combining noble gas measurements with geophysical observations and geodynamic models of mantle convection will uniquely position us to make major breakthroughs in our understanding of how the early Earth became our modern world. My continuing efforts have therefore focused on:  the source(s) of terrestrial volatile’s,  the distribution of terrestrial volatile’s during differentiation and outgassing e.g., the formation of atmosphere, and  the interaction and evolution of these reservoirs through time. Expanding these investigations to other planetary bodies will transform our understanding of the timing and distribution of volatile-rich and volatile-poor materials in the early solar system, the acquisition of volatile’s by planetary interiors, how volatile’s are lost and/or modified at the planetary scale, and what impact these processes might have on the short- and long-term evolution of terrestrial atmospheres.
Source(s) of terrestrial volatile’s – [PDF]
Distribution of terrestrial volatile’s during differentiation – [PDF]
Mukhopadhyay Group (Noble Gas Geochemistry @ UCDavis) – [website]
Williams C. D., Li M., McNamara A. K., Garnero E. J., van Soest C. (2015) Episodic entrainment of deep primordial mantle material into ocean island basalts. Nature Communications 6, 8937. doi:10.1038/ncomms9937. [PDF]