Titre :

Does a strong pycnocline impact organic-matter preservation and accumulation in an anoxic setting? The case of the Orca Basin, Gulf of Mexico

Auteur(s) :

Tribovillard, Nicolas [Auteur]
Bout Roumazeilles, Viviane [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Sionneau, Thomas [Auteur]
Serrano, Montero [Auteur]
Riboulleau, Armelle [Auteur]
Baudin, François [Auteur]

Titre de la revue :

Comptes Rendus. Géoscience

Pagination :

1-9

Éditeur :

Académie des sciences (Paris)

Date de publication :

2009-01

ISSN :

1631-0713

Discipline(s) HAL :

Planète et Univers [physics]
Sciences du Vivant [q-bio]
Physique [physics]

Résumé en anglais : [en]

The Orca Basin (an intraslope depression located in the Gulf of Mexico) collects sedimentary particles of terrestrial origin (clastic and organic particles mainly supplied by the Mississippi River) and of marine origin ...
Lire la suite >The Orca Basin (an intraslope depression located in the Gulf of Mexico) collects sedimentary particles of terrestrial origin (clastic and organic particles mainly supplied by the Mississippi River) and of marine origin (biogenic productivity). The basin is partly filled with dense brines leached from salt diapirs cropping out on the sea floor, and is permanently stratified. A strong pycnocline induces anoxic bottom conditions, expectedly favorable to organic matter (OM) preservation. Here, we report on OM in the upper 750 cm below sea floor of CoreLire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL