His research expertise encompasses massive volcanism on the seafloor, environmental effects of massive volcanism, plate tectonics, and rifted continental margins.
They are predominantly stratiform accumulations of sulfide minerals that precipitate from hydrothermal fluids on or below the seafloor in a wide range of ancient and modern geological settings.
Because rock that behaves like soft soap permits a completely different deformation, which could be the basis of the so-called "smooth seafloor" that is only known from ultra-slow ridges.
The 30m resolution survey showed for the first time that the South Sandwich Islands are the emergent tips of huge volcanoes that rise from seafloor about 3 kilometres deep.