My primary areas of research are in PETROLOGY, GEOCHEMISTRY, and VOLCANOLOGY.
My research combines geological field work with geochemical studies that focus primarily on the use of trace element and isotope geochemistry to understand igneous processes. I am particularly interested in understanding how the geochemistry of subduction-related magma is controlled by tectonics in different subduction settings.

Most of my work has been in the Aleutian Islands, Alaska, and on the Kamchatka Peninsula of the Russian Far East. I've also worked in the western U.S., especially in Oregon and Nevada. We are also involved in an interdisciplinary effort to get a project underway in the Northern Andes, focussing on the subduction of the aseismic Carnegie Ridge and its role in the formation and evolution of the subduction zone in Ecuador.

SOME PROJECTS THAT WE ARE WORKING ON
- Dredging Sea Floor Volcanoes
- High Field Strength Elements in Subduction Lavas
- Northern Andes / Carnegie Ridge (NASCAR)
- Mantle Xenoliths from the Kamchatka Arc
- Holocene Eruptive Histories of Aleutian Volcanoes
- Submarine Canyons in the Western Aleutians