Title :

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

Author(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]

Journal title :

Comptes Rendus. Géoscience

Pages :

1-9

Publisher :

Académie des sciences (Paris)

Publication date :

2009-01

ISSN :

1631-0713

HAL domain(s) :

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

English abstract : [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 ...
Show more >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 CoreShow less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

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

Source :

Harvested from HAL