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- Earth and Environmental Sciences
I combine field, laboratory, and experimental work to investigate the physical and chemical evolution of mineral resources, with a particular focus on those associated with volcanic environments. I am especially interested in the role that aqueous fluids play in moderating trace element mobility in environments ranging from subduction zones to porphyry-type ore deposits, which are an important source of copper, gold, molydenum, and silver. My research group is currently involved in projects ranging from the development of arc volcanoes and their relationship to melting and dehydration processes at the slab-mantle wedge interface, the physical and chemical nature of magma degassing and how this relates to the formation of metal ore deposits, the behavior of base and precious metals in water-saturated silicate magmas, and the physical and chemical connectivity of plutons and volcanoes. Current field locations include: Chile, South America; Kamchatka, Russia; Yosemite National Park, California, U.S.A.; Nevada, U.S.A.; and the Colorado River Extensional Corridor in southern Nevada, U.S.A.