A short electromagnetic profile across the Kane Oceanic Core Complex | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  A short electromagnetic profile across the Kane Oceanic Core Complex

Publication Type:

Journal Article

Source:

{GEOPHYSICAL RESEARCH LETTERS}, Volume {37} (0)

Abstract:

{A short seafloor electromagnetic profile across part of the Kane Oceanic Core Complex shows a large variation in seafloor electrical properties (uppermost 30m) with a sharp transition from conductive to resistive seafloor over a distance of less than 350m. The transition is in a location consistent with a sharp, but deeper, lateral gradient in seismic velocity, inferred to mark a transition from serpentinized peridotite to either gabbro or pristine mantle rocks, and is close to a mapped outcrop of serpentinized peridotites. We relate this variability in shallow structure primarily to changes in porosity related to composition. Citation: Evans, R. L., J. Escartin, and M. Cannat (2010), A short electromagnetic profile across the Kane Oceanic Core Complex, Geophys. Res. Lett., 37, L15309, doi: 10.1029/2010GL043813.}