My thesis is entitled “Mantle serpentinization, carbon and life?” and is related to mantle serpentinization, the deep biosphere and the geological evolution of the slow spreading ridges. This project is a part of a collaboration between the University of Liverpool and the University of Strasbourg relative to the study of rifted margin and mantle exhumation. Evidence based on an ocean ridge drilling support the hypothesis that mantle serpentinization, a process create from the interaction of mantle rock and water, occurs at slow-spreading ocean ridges and magma-poor rifted continental margins. Observations at hydrothermal systems suggest that methane produced by serpentinization can support methanotrophic bio-systems, a system supported by living bacterias which use methane as their only source of carbon. Methanotropic bacteria have been identified at active hydrothermal vents at slow spreading ocean ridges methane produced by serpentinization as a carbon source. Comments are closed.
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