Evan Solomon is a marine geochemist/geologist whose research combines the development of novel seafloor/subseafloor instrumentation, fieldwork, laboratory analysis, and numerical modeling to document and understand large-scale geologic processes that are societally relevant. His research is interdisciplinary, combining the fields of geology, geochemistry, geophysics, and microbiology. He focuses on 1) the relationship between fluid flow, chemical fluxes, and tectonics at continental margins and subduction zones; 2) marine gas hydrates and environmental change; 3) biogeochemical cycling between the ocean and crust at continental margins; and 4) metabolic pathways and rates in the deep biosphere. He is involved in both the International Ocean Discovery Program and the Ocean Observatories Initiative, and with colleagues conducts work around the world with field sites at the Washiginton/Oregon, Costa Rica, and Japan subduction zones, in the Indian Ocean, and in the Gulf of Mexico.