Author
Listed:
- Rolf B. Pedersen
(Centre for Geobiology, University of Bergen, 5007 Bergen, Norway.
University of Bergen, 5007 Bergen, Norway.)
- Hans Tore Rapp
(Centre for Geobiology, University of Bergen, 5007 Bergen, Norway.
University of Bergen, 5007 Bergen, Norway.)
- Ingunn H. Thorseth
(Centre for Geobiology, University of Bergen, 5007 Bergen, Norway.
University of Bergen, 5007 Bergen, Norway.)
- Marvin D. Lilley
(School of Oceanography, University of Washington)
- Fernando J. A. S. Barriga
(University of Lisbon, Faculty of Sciences, Creminer LA-ISR—Centro de Recursos Minerais)
- Tamara Baumberger
(ETH Zurich, Institute for Geochemistry and Petrology)
- Kristin Flesland
(Centre for Geobiology, University of Bergen, 5007 Bergen, Norway.
University of Bergen, 5007 Bergen, Norway.)
- Rita Fonseca
(University of Lisbon, Faculty of Sciences, Creminer LA-ISR—Centro de Recursos Minerais
School of Sciences and Technology, University of Évora)
- Gretchen L. Früh-Green
(ETH Zurich, Institute for Geochemistry and Petrology)
- Steffen L. Jorgensen
(Centre for Geobiology, University of Bergen, 5007 Bergen, Norway.
University of Bergen, 5007 Bergen, Norway.)
Abstract
The Arctic Mid-Ocean Ridge (AMOR) represents one of the most slow-spreading ridge systems on Earth. Previous attempts to locate hydrothermal vent fields and unravel the nature of venting, as well as the provenance of vent fauna at this northern and insular termination of the global ridge system, have been unsuccessful. Here, we report the first discovery of a black smoker vent field at the AMOR. The field is located on the crest of an axial volcanic ridge (AVR) and is associated with an unusually large hydrothermal deposit, which documents that extensive venting and long-lived hydrothermal systems exist at ultraslow-spreading ridges, despite their strongly reduced volcanic activity. The vent field hosts a distinct vent fauna that differs from the fauna to the south along the Mid-Atlantic Ridge. The novel vent fauna seems to have developed by local specialization and by migration of fauna from cold seeps and the Pacific.
Suggested Citation
Rolf B. Pedersen & Hans Tore Rapp & Ingunn H. Thorseth & Marvin D. Lilley & Fernando J. A. S. Barriga & Tamara Baumberger & Kristin Flesland & Rita Fonseca & Gretchen L. Früh-Green & Steffen L. Jorgen, 2010.
"Discovery of a black smoker vent field and vent fauna at the Arctic Mid-Ocean Ridge,"
Nature Communications, Nature, vol. 1(1), pages 1-6, December.
Handle:
RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1124
DOI: 10.1038/ncomms1124
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