Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [211556] |
Anaerobic oxidation of methane in a cold-water coral carbonate mound from the Gulf of Cadiz
Maignien, L.; Depreiter, D.; Foubert, A.; Reveillaud, J.; De Mol, L.; Boeckx, P.; Blamart, D.; Henriet, J.-P.; Boon, N. (2011). Anaerobic oxidation of methane in a cold-water coral carbonate mound from the Gulf of Cadiz. Int. J. Earth Sci. 100(6): 1413-1422. dx.doi.org/10.1007/s00531-010-0528-z
In: International Journal of Earth Sciences. Springer: Berlin; Heidelberg. ISSN 1437-3254; e-ISSN 1437-3262, meer
|  |
| Trefwoord |
|
| Author keywords |
Cold-water carbonate mound; Anaerobic oxidation of methane; Gulf of Cadiz; Methane |
| Auteurs | | Top |
|
|
- Blamart, D.
- Henriet, J.-P., meer
- Boon, N., meer
|
| Abstract |
The Gulf of Cadiz is an area of mud volcanism and gas venting through the seafloor. In addition, several cold-water coral carbonate mounds have been discovered at the Pen Duick escarpment amidst the El Arraiche mud volcano field on the Moroccan margin. One of these mounds -named Alpha mound- has been studied to examine the impact of the presence of methane on pore-water geochemistry, potential sulphate reduction (SR) rate and dissolved inorganic carbon (DIC) budget of the mound in comparison with off-mound and off-escarpment locations. Pore-water profiles of sulphate, sulphide, methane, and DIC from the on-mound location showed the presence of a sulphate to methane transition zone at 350 cm below the sea floor. This was well correlated with an increase in SR activity. 13C-depleted DIC at the transition zone (-21.9‰ vs. Vienna Pee Dee Belemnite) indicated that microbial methane oxidation significantly contribute to the DIC budget of the mound. The Alpha mound thus represents a new carbonate mound type where the presence and anaerobic oxidation of methane has an important imprint on both geochemistry and DIC isotopic signature and budget of this carbonate mound. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
