Serpentine Vents

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Science  25 Jul 2003:
Vol. 301, Issue 5632, pp. 433
DOI: 10.1126/science.301.5632.433e

Serpentinization involves the water-driven alteration of olivine to serpentine and is a dominant process in the alteration of olivine-rich rocks, such as peridotites, on the seafloor. Früh-Green et al. (p. 495) determined the rate of serpentinization for the Lost City hydrothermal vent field and show that hydrothermal activity has persisted for at least tens of thousands of years. Such long-lived hydrothermal activity on the seafloor can alter the global geochemical cycle and affect the growth and stability of microbial communities.

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