Consulta: creatorFacets:"Jegou, Isabelle"
Registros recuperados: 2
Data/hora: 07/06/2024 09:27:36

Turbiditic levee deposition in response to climate changes: The Var Sedimentary Ridge (Ligurian Sea)
Provedor de dados: 5
Autores: Jorry, Stephan; Jegou, Isabelle; Emmanuel, Laurent; Silva Jacinto, Ricardo; Savoye, Bruno.
The Var turbiditic system located in the Ligurian Sea (SE France) is an intermediate mud/sand-rich system. The particularity of the Var deep-sea fan is its single channel with abrupt bends and its asymmetric and hyper-developed levee on the right hand side: the Var Sedimentary Ridge. Long-term sediment accumulation on the Var Sedimentary Ridge makes this an ideal target for studying the link between onshore climate change and deep-sea turbidite stratigraphy. This paper focuses on the establishment of the first detailed stratigraphy of the levee, which is used to analyze the timing of overbank deposition throughout the last deglaciation. Main results indicate that high variability in turbidite frequencies and deposition rates along the Var Sedimentary Ridge...
Tipo: Text
Palavras-chave: Last deglaciation; Overbank deposits; Turbidity currents; Var Sedimentary Ridge; Ligurian Sea.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00030/14104/11370.pdf

Etude de la transition chenal-levées/lobe dans les systèmes turbiditiques récents. Application à l'éventail turbiditique de l'Amazone et au Néofan du Petit-Rhône
Provedor de dados: 5
Autores: Jegou, Isabelle.
The channel-lobe transition zone has been studied in two turbiditic systems: the Amazon channel-mouth lobe complex at the termination of the last eight channel-levee systems and the Neochannel termination, the last active channel of the Petit-Rhone turbidite system. - In the two cases, the internal geometry and stacking pattern of the deposits show a significant control of the configuration (size and shape) of the receiving basins, their morphology (gradients and subtle gradient changes), and their degree of confinement. - The Amazon and Petit-Rhone systems, with lobes built after the Last Glacial Maximum and the ensuing sea-level rise, evidence the major impact of external forcings (climatic events and eustatic variations) that induce variations in...
Tipo: Text
Palavras-chave: Post glacial deconnexion; Internal and external forcing parameters; Channel mouth lobe; Petit Rhone Neofan; Amazon Fan; Turbiditic systems; Déconnexion post glaciaire; Forçages internes et externes; Processus de compensation; Lobes terminaux; Néofan du Petit Rhône; Amazone; Systèmes  turbiditiques.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-6796.pdf