Control of the Mid-Atlantic ridge and the Gulf Stream on the Quaternary sedimentation on the Azores Plateau

Authors
Dennielou, B Auffret, GA Boelaert, A Richter, T Garlan, T Kerbrat, R
Citation
B. Dennielou et al., Control of the Mid-Atlantic ridge and the Gulf Stream on the Quaternary sedimentation on the Azores Plateau, CR AC S IIA, 328(12), 1999, pp. 831-837
Citations number
17
Categorie Soggetti
Earth Sciences
Journal title
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DELA TERRE ET DES PLANETES
ISSN journal
12518050 → ACNP
Volume
328
Issue
12
Year of publication
1999
Pages
831 - 837
Database
ISI
SICI code
1251-8050(199906)328:12<831:COTMRA>2.0.ZU;2-3
Abstract
The Azores Plateau is characterized by very low sedimentary fluxes. These c onsist of pelagic oozes slightly diluted by volcanogenic material. Sediment ary processes are controlled by (1) current activity: during at least the l ast three glacial periods the Gulf Stream has winnowed fine particles at de pth shallower than 1 500 m, (2) the sea-bottom morphology: Mid-Atlantic rid ge ponds act as sediment traps. The lateral flux can represent up to 92 % o f the infill. ((C) Academie des sciences / Elsevier, Paris.).