Contourite sedimentation in the Alboran Sea: Plio-Quaternary evolution

Several attempts for establishing a good Plio-Quaternary stratigraphy were proposed and disputed since the beginning of the studies in the Alboran Sea during the 80’s. Now, we have reviewed all the available data with the purpose of improving the detail of the previous stratigraphy by adding new chr...

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Detalles Bibliográficos
Autores: Juan, Carmen, Ercilla, Gemma, Estrada, G., Casas, David, Alonso, Belén, García, M., Farran, Marcel-lí, Palomino, Desirée, Vázquez, Juan Tomás, Llave, Estefanía, Hernández-Molina, Francisco J., Medialdea Cela, Teresa, Gorini, Christian, D'Acremont, Elia, El-Moumni, Bouchta, Gensous, B., Tesson, M., Maldonado, Antonio, Ammar, Abdellah, CONTOURIBER Team, MONTERA Team
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/320523
Acceso en línea:http://hdl.handle.net/10261/320523
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Málaga
Medio Marino
Alboran Sea
Stratigraphy
Contourites
Paleoceanography
Plio-Quaternary
Mar de Alborán
Estratigrafía
contornitas
paleoceanografía
Plio-Cuaternario
Descripción
Sumario:Several attempts for establishing a good Plio-Quaternary stratigraphy were proposed and disputed since the beginning of the studies in the Alboran Sea during the 80’s. Now, we have reviewed all the available data with the purpose of improving the detail of the previous stratigraphy by adding new chronostratigraphic boundaries (Lower Pliocene Revolution –LPR-, Base Quaternary Discontinuity –BQD- and Middle Pleistocene Revolution –MPR-) with paleoclimatic and paleoceanographic significances. Their addition have allowed tracking the effects of the Mediterranean water masses on the sedimentation since the opening the Strait of Gibraltar. The new results indicate that the Pliocene and Quaternary sedimentary record is mainly characterized by contourites, comprising both depositional and erosive features, that contribute to the outbuilding of the margins and infilling of the basins. Thus, a new Plio-Quaternary sedimentary evolution model with dominance of the alongslope processes has been established for the Alboran Sea.