Facies analysis, foraminiferal record and chronostratigraphy of Holocene sequences from Saltés Island (Tinto-Odiel estuary, SW Spain): The origin of high-energy deposits

A multidisciplinary analysis of Holocene sediments from La Cascajera (Tinto-Odiel estuary, SW Spain) has al lowed to differentiate five sedimentary facies (sandy tidal flat, clayey tidal flat, washover fan, salt marsh, edaphic horizon), according to their granulometric characteristics, internal stru...

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Detalles Bibliográficos
Autores: González-Regalado Montero, María Luz, Gómez, P., Ruiz Muñoz, Francisco, Cáceres Puro, Luis Miguel, Clemente, M.J., Rodríguez Vidal, Joaquín, Toscano Grande, Antonio, Monge Gómez, Guadalupe, Abad de los Santos, Manuel, Izquierdo, Tatiana, Campos Carrasco, Juan Manuel, Bermejo Meléndez, Javier, Martínez Aguirre, Arancha, Prudencio, M.I., Muñoz Pichardo, Juan Manuel, Dias, M.I., Marques, R.
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/24340
Acceso en línea:https://hdl.handle.net/10272/24340
Access Level:acceso abierto
Palabra clave:Palaeoenviromental reconstruction
Washover fan
Chenier
Holocene
SW Spain
2506 Geología
Descripción
Sumario:A multidisciplinary analysis of Holocene sediments from La Cascajera (Tinto-Odiel estuary, SW Spain) has al lowed to differentiate five sedimentary facies (sandy tidal flat, clayey tidal flat, washover fan, salt marsh, edaphic horizon), according to their granulometric characteristics, internal structure, mineralogical composi tion, clay mineral assemblage and paleontological record. These data, coupled to 14C AMS dating, suggest an evolution from a sandy tidal plain to a chenier before 2100 cal yr BP. This initial chenier was partially eroded later by regional storms between 2100 cal yr BP and 1900 cal yr BP, leading to the deposition of two washover fans. These facies have been eroded in the last centuries by the action of an ebb-tide channel