He discovered that the occurrence of deep ocean floor rocks, volcanic rocks and deformed rocks, which are currently found in the mountain ranges of New Guinea, point to the existence of a 4000 km wide subduction zone. (sciencedaily.com)
While at sea, Mutter investigates the workings of deep ocean floors; on land, he directs the Earth Institute's Ph.D. in Sustainable Development and works to focus science on humanitarian causes. (ldeo.columbia.edu)
On the deep ocean floor, for instance, more than 80 percent of the species being found are unknown. (discovermagazine.com)