Fluid-Rock Interactions and the Subseafloor Biosphere : Image

Sub-seafloor fluid flow systems in geological, biological, and hydrographic environments. Many seafloor and all sub-seafloor ecosystems are inextricably linked to, and perhaps an inevitable consequence of, the flow of energy and material between the earth’s crust and the deepest portions of the overlying ocean. The direct linkages between life and planetary processes operating along deep-sea spreading centers, subduction zones, and transform faults, as well as mid-plate circulation, can only be understood through tightly integrated studies across a broad range of disciplines in geophysics, geology, chemistry, biology, and oceanography. (Figure from JOIDES Hydrogeology PPG Report (2001), http://poseidon.palaeoz.geomar.de/panels/reports.html.)