Diverse styles of submarine venting on the ultraslow spreading Mid-Cayman Rise


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dc.contributor.author German, Christopher R.
dc.contributor.author Bowen, Andrew D.
dc.contributor.author Coleman, M. L.
dc.contributor.author Honig, D. L.
dc.contributor.author Huber, Julie A.
dc.contributor.author Jakuba, Michael V.
dc.contributor.author Kinsey, James C.
dc.contributor.author Kurz, Mark D.
dc.contributor.author Leroy, S.
dc.contributor.author McDermott, Jill M.
dc.contributor.author Mercier de Lepinay, B.
dc.contributor.author Nakamura, Ko-ichi
dc.contributor.author Seewald, Jeffrey S.
dc.contributor.author Smith, J. L.
dc.contributor.author Sylva, Sean P.
dc.contributor.author Van Dover, Cindy L.
dc.contributor.author Whitcomb, Louis L.
dc.contributor.author Yoerger, Dana R.
dc.date.accessioned 2010-07-28T19:05:02Z
dc.date.available 2010-07-28T19:05:02Z
dc.date.issued 2010-06-24
dc.identifier.uri http://hdl.handle.net/1912/3828
dc.description Author Posting. © The Authors, 2010. This is the author's version of the work. It is posted here by permission of National Academy of Sciences for personal use, not for redistribution. The definitive version was published in Proceedings of the National Academy of Sciences of the United States of America 107 (2010): 14020-14025, doi:10.1073/pnas.1009205107. en_US
dc.description.abstract Thirty years after the first discovery of high-temperature submarine venting, the vast majority of the global Mid Ocean Ridge remains unexplored for hydrothermal activity. Of particular interest are the world’s ultra-slow spreading ridges which were the last to be demonstrated to host high-temperature venting, but may host systems particularly relevant to pre-biotic chemistry and the origins of life. Here we report first evidence for diverse and very deep hydrothermal vents along the ~110 km long, ultra-slow spreading Mid-Cayman Rise. Our data indicate that the Mid- Cayman Rise hosts at least three discrete hydrothermal sites, each representing a different type of water-rock interaction, including both mafic and ultra-mafic systems and, at ~5000 m, the deepest known hydrothermal vent. Although submarine hydrothermal circulation, in which seawater percolates through and reacts with host lithologies, occurs on all mid-ocean ridges, the diversity of vent-types identified here and their relative geographic isolation make the Mid-Cayman Rise unique in the oceans. These new sites offer prospects for: an expanded range of vent-fluid compositions; varieties of abiotic organic chemical synthesis and extremophile microorganisms; and unparalleled faunal biodiversity - all in close proximity. en_US
dc.description.sponsorship This research was funded through NASA (ASTEP) and WHOI (Ocean Ridge Initiative). en_US
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.relation.uri http://dx.doi.org/10.1073/pnas.1009205107
dc.title Diverse styles of submarine venting on the ultraslow spreading Mid-Cayman Rise en_US
dc.type Preprint en_US

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