Accéder directement au contenu Accéder directement à la navigation
Communication dans un congrès

High resolution Holocene record in the southeastern Bay of Biscay: use of benthic and planktic foraminifera as paleoenvironmental proxies

Abstract :

The southeastern part of the Bay of Biscay is under the combined influence of the eastern branch of the North Atlantic Current (NAC) and coastal river plumes. The objective of this study is to use foraminiferal distribution from a 3 m high resolution record (SE Bay of Biscay; 550 m water depth) as proxies to evaluate the hydrological pattern of the Bay of Biscay during the Holocene; a period of rapid climatic change.

Faunal distributions coupled to grain size variability suggest a rapid evolution of the sedimentary structuring of the basin. Major changes are recorded in benthic and planktic foraminiferal communities suggesting important fluctuations of primary and exported productivity during the Holocene. These rapid changes could be related to variations of the oceanic hydrology of the basin and/or to the coastal rivers hydrological regimes.

Type de document :
Communication dans un congrès
Liste complète des métadonnées

https://hal.univ-angers.fr/hal-03278263
Contributeur : Okina Université d'Angers <>
Soumis le : lundi 5 juillet 2021 - 14:16:52
Dernière modification le : mardi 6 juillet 2021 - 03:44:58

Identifiants

  • HAL Id : hal-03278263, version 1
  • OKINA : ua4037

Citation

Meryem Mojtahid, Hélène Howa, Jennifer Garcia, Frans Jorissen, Elisabeth Michel, et al.. High resolution Holocene record in the southeastern Bay of Biscay: use of benthic and planktic foraminifera as paleoenvironmental proxies. EGU, 2012, Vienna, Austria. ⟨hal-03278263⟩

Partager

Métriques

Consultations de la notice

8