I use the major element, trace element, and isotopic (Sr-Nd-Pb-Hf-Os) chemistry of abyssal peridotites and mantle xenoliths to understand the evolution of the lithospheric and asthenospheric mantle.

Current Research Projects

Evidence from mantle xenoliths for lithosphere removal beneath the central Rio Grande Rift ( view ) Ultra-depleted isotopic compositions in fertile asthenosphere-derived peridotites ( view )

High field strength element partitioning in peridotites

Re-Os, Lu-Hf, and Sm-Nd constraints on the timing and nature of melt extraction and metasomatism in peridotite xenoliths from the eastern Colorado Plateau