The Marine Geology and Geophysics Core Program supports research on all aspects of the geology and geophysics of the present ocean basins and margins, as well as those of the Great Lakes. The Program supports science that includes:Structure, composition, tectonics, and evolution of the oceanic lithosphere Paleoceanography, paleoclimate, and sea level change Submarine volcanology, petrology and geochemistry of the oceanic crust and upper mantle lithosphere Marine hydrogeology, water-rock interaction, seeps and gas hydrates Hydroth...