Journal article
A serpentinite-hosted ecosystem in the Southern Mariana Forearc
Proceedings of the National Academy of Sciences - PNAS, Vol.109(8), pp.2831-2835
02/21/2012
DOI: 10.1073/pnas.1112005109
PMCID: PMC3286937
PMID: 22323611
Abstract
Several varieties of seafloor hydrothermal vents with widely varying fluid compositions and temperatures and vent communities occur in different tectonic settings. The discovery of the Lost City hydrothermal field in the Mid-Atlantic Ridge has stimulated interest in the role of serpentinization of peridotite in generating H-2- and CH4-rich fluids and associated carbonate chimneys, as well as in the biological communities supported in highly reduced, alkaline environments. Abundant vesicomyid clam communities associated with a serpentinite-hosted hydrothermal vent system in the southern Mariana forearc were discovered during a DSV Shinkai 6500 dive in September 2010. We named this system the "Shinkai Seep Field (SSF)." The SSF appears to be a serpentinite-hosted ecosystem within a forearc (convergent margin) setting that is supported by fault-controlled fluid pathways connected to the decollement of the subducting slab. The discovery of the SSF supports the prediction that serpentinite-hosted vents may be widespread on the ocean floor. The discovery further indicates that these serpentinite-hosted low-temperature fluid vents can sustain high-biomass communities and has implications for the chemical budget of the oceans and the distribution of abyssal chemosynthetic life.
Details
- Title: Subtitle
- A serpentinite-hosted ecosystem in the Southern Mariana Forearc
- Creators
- Yasuhiko Ohara - Hydrographic and Oceanographic Department of Japan, Tokyo 135-0064, Japan.Mark K Reagan - University of IowaKatsunori Fujikura - Japan Agency for Marine-Earth Science and TechnologyHiromi Watanabe - Japan Agency for Marine-Earth Science and TechnologyKatsuyoshi Michibayashi - Shizuoka UniversityTeruaki Ishii - Geological InstituteRobert J Stern - The University of Texas at DallasIgnacio Pujana - The University of Texas at DallasFernando Martinez - University of Hawaiʻi at MānoaGuillaume Girard - University of IowaJulia Ribeiro - The University of Texas at DallasMaryjo Brounce - University of Rhode IslandNaoaki Komori - Shizuoka UniversityMasashi Kino - Shizuoka University
- Resource Type
- Journal article
- Publication Details
- Proceedings of the National Academy of Sciences - PNAS, Vol.109(8), pp.2831-2835
- DOI
- 10.1073/pnas.1112005109
- PMID
- 22323611
- PMCID
- PMC3286937
- NLM abbreviation
- Proc Natl Acad Sci U S A
- ISSN
- 0027-8424
- eISSN
- 1091-6490
- Publisher
- National Academy of Sciences
- Number of pages
- 5
- Grant note
- EAR 0840862; 1026150 / National Science Foundation; National Science Foundation (NSF) 0961352 / Division Of Ocean Sciences; National Science Foundation (NSF); NSF - Directorate for Geosciences (GEO) Institute for Research on Earth Evolution (IFREE) Japan Agency for Marine-Earth Science and Technology (JAMSTEC) 22244062 / Grants-in-Aid for Scientific Research; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) C21540477; A22244062 / Japan Society for the Promotion of Science; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science
- Language
- English
- Date published
- 02/21/2012
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984240910502771
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