Hot-spot related magmatism (e.g., Hawaii, Snake River Plain) Extension-related magmatism (e.g., Cordilleran U.S.) Subduction-related magmatism Boron geochemistry Current research colleagues and graduate students Inci Ertan Saijin Huang Miscellaneous Bill with volcanic bomb (Lorena Butte, WA) Thin section of Simcoe mantle (phlogopite-olivine harzburgite, LB-57) click here to return to Bill's Home Page. leeman@rice.edu Updated: 1 Sept 99