HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Fine-grained sediment budget on the continental margin of the Bay of Biscay

Abstract : Under present-day conditions, rivers are the main source of fine sediments dispersed to the Bay of Biscay. They deliver about 2.5×10 6 t yr -1 of continental fine sediments, 60% of which is derived from the Gironde estuary. Of this flux, 65% is believed stored on the shelf. Two kinds of mud fields can be found in the Bay of Biscay: coastal mud and shelf mud belts. The total mass of fine sediments stored during the past 2000 years is 3.2×10 9 t. Consequently, about 0.9×10 6 t yr -1 could reach the shelf edge and eventually the open sea. From this amount of displaced material and the deposition surface areas, an evaluation of sediment fluxes across the margin during the late Holocene period is discussed. This evaluation is compared with results obtained from ECOsystéme du canyon du cap-FERret (ECOFER) data from sediment traps and surficial box cores.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03618919
Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Thursday, March 24, 2022 - 4:26:59 PM
Last modification on : Friday, March 25, 2022 - 3:57:32 AM

Links full text

Identifiers

Collections

INSU | PSL | EPHE | CNRS

Citation

J. M. Jouanneau, O. Weber, M. Cremer, P. Castaing. Fine-grained sediment budget on the continental margin of the Bay of Biscay. Deep Sea Research Part II: Topical Studies in Oceanography, 1999, 46, pp.2205-2220. ⟨10.1016/S0967-0645(99)00060-0⟩. ⟨insu-03618919⟩

Share

Metrics

Record views

4