A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field

Details A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sci...307.1428k&link_type=abstract

Science, Volume 307, Issue 5714, pp. 1428-1434 (2005).

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Scientific paper

The serpentinite-hosted Lost City hydrothermal field is a remarkable submarine ecosystem in which geological, chemical, and biological processes are intimately interlinked. Reactions between seawater and upper mantle peridotite produce methane- and hydrogen-rich fluids, with temperatures ranging from <40° to 90°C at pH 9 to 11, and carbonate chimneys 30 to 60 meters tall. A low diversity of microorganisms related to methane-cycling Archaea thrive in the warm porous interiors of the edifices. Macrofaunal communities show a degree of species diversity at least as high as that of black smoker vent sites along the Mid-Atlantic Ridge, but they lack the high biomasses of chemosynthetic organisms that are typical of volcanically driven systems.

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