High resolution Holocene record in the southeastern Bay of Biscay: use of benthic and planktic foraminifera as paleoenvironmental proxies - Université d'Angers Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

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

Résumé

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.

Fichier non déposé

Dates et versions

hal-03278263 , version 1 (05-07-2021)

Identifiants

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

Citer

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⟩
13 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More