The Kallisti Limnes, carbon dioxide-accumulating subsea pools

Abstract : Natural CO 2 releases from shallow marine hydrothermal vents are assumed to mix into the water column, and not accumulate into stratified seafloor pools. We present newly discovered shallow subsea pools located within the Santorini volcanic caldera of the Southern Aegean Sea, Greece, that accumulate CO 2 emissions from geologic reservoirs. This type of hydrothermal seafloor pool, containing highly concentrated CO 2 , provides direct evidence of shallow benthic CO 2 accumulations originating from sub-seafloor releases. Samples taken from within these acidic pools are devoid of calcifying organisms, and channel structures among the pools indicate gravity driven flow, suggesting that seafloor release of CO 2 at this site may preferentially impact benthic ecosystems. These naturally occurring seafloor pools may provide a diagnostic indicator of incipient volcanic activity and can serve as an analog for studying CO 2 leakage and benthic accumulations from subsea carbon capture and storage sites.
Type de document :
Article dans une revue
Scientific Reports, Nature Publishing Group, 2015, 5 (1), 9 p. 〈10.1038/srep12152 〉
Liste complète des métadonnées

Littérature citée [40 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01257858
Contributeur : Valérie Ballu <>
Soumis le : vendredi 3 novembre 2017 - 14:42:17
Dernière modification le : vendredi 4 janvier 2019 - 17:33:34

Fichier

srep12152.pdf
Publication financée par une institution

Identifiants

Collections

INSU | IPGP | USPC

Citation

Richard Camilli, Paraskevi Nomikou, Javier Escartin, Pere Ridao, Angelos Mallios, et al.. The Kallisti Limnes, carbon dioxide-accumulating subsea pools. Scientific Reports, Nature Publishing Group, 2015, 5 (1), 9 p. 〈10.1038/srep12152 〉. 〈hal-01257858〉

Partager

Métriques

Consultations de la notice

90

Téléchargements de fichiers

28