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Article Dans Une Revue Marine Geology Année : 2017

An integrated view of the methane system in the pockmarks at Vestnesa Ridge, 79°N

Giuliana Panieri
  • Fonction : Auteur
Stefan Bünz
  • Fonction : Auteur
Javier Escartin
Pavel Serov
  • Fonction : Auteur
Marta Torres
Joel Johnson
  • Fonction : Auteur
Weili Hong
  • Fonction : Auteur

Résumé

The Vestnesa Ridge is a NW-SE trending, ~100 km-long, 1-2 km-thick contourite sediment section located in the Arctic Ocean, west of Svalbard, at 79°N. Pockmarks align along the ridge summit at water depths of ~1200 m; they are ~700 m in diameter and ~10 m deep relative to the surrounding seafloor. Observations of methane seepage in this area have been reported since 2008. Here we summarize and integrate the available information to date and report on the first detailed seafloor imaging and camera-guided multicore sampling at two of the most active pockmarks along Vestnesa Ridge, named Lomvi and Lunde. We correlate seafloor images with
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Dates et versions

hal-02330303 , version 1 (29-03-2021)

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Giuliana Panieri, Stefan Bünz, Daniel J Fornari, Javier Escartin, Pavel Serov, et al.. An integrated view of the methane system in the pockmarks at Vestnesa Ridge, 79°N. Marine Geology, 2017, 390, pp.282-300. ⟨10.1016/j.margeo.2017.06.006⟩. ⟨hal-02330303⟩
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