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I am an earth scientist (B.S. in geology and Ph.D. in geochemistry) with primary interests in the early Earth, the origin of life, and the evolution of the continental crust.  I investigate these topics using the petrology, geochronology, and chemistry of accessory minerals (for example: zircon, shown at left).  

The first half billion years of Earth history lack a confirmed rock record, but bore witness to many of the important events that shaped our planet's subsequent evolution.  The formation of the Moon, likely magma ocean(s), and potentially the origin of terrestrial life occurred in this epoch, and each played crucial roles in forming the blue planet we know today.  

My research has focused on using the geochemistry of detrital zircon to investigate the composition, evolution, and destruction of >4 billion year old (Ga) crust.  My current work involves using materials trapped within >4 Ga zircons to constrain the timing of life's origin and the composition of Earth's most ancient crust.  Most of my research involves micro-analysis by ion microprobe, which allows for high-spatial resolution isotopic analyses of solid samples.

I am an assistant project scientist in the ion microprobe research group, Department of Earth, Planetary, and Space Sciences, UCLA.