Ostracofauna y Foraminíferos: implicaciones cronoestratigráficas y paleoambientales durante el Neógeno superior en el área del Oued Arjat (Cuenca de Bou Regreg, Marruecos)

In this work we analyze the Ostracofauna and Foraminifers from the Upper Neogene of the Oued Arjat area (Bou Regreg basin, N of Morocco). There is a significative change in paleobathymetry between the lower and the upper levels, separated by an unconformity. As showed by Ostracofauna, benthic Forami...

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Detalles Bibliográficos
Autores: Civis-Llovera, Jorge, González Lucas, C., Alonso Gavilán, G., González Delgado, José Ángel
Tipo de recurso: artículo
Fecha de publicación:2001
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/9710
Acceso en línea:http://hdl.handle.net/10272/9710
Access Level:acceso abierto
Palabra clave:Stratigraphy
Ostracofauna
Foraminifera
Mollusca
Biochronology
Upper Neogene
Oued Arjat
Bou Regreg
Morocco
Descripción
Sumario:In this work we analyze the Ostracofauna and Foraminifers from the Upper Neogene of the Oued Arjat area (Bou Regreg basin, N of Morocco). There is a significative change in paleobathymetry between the lower and the upper levels, separated by an unconformity. As showed by Ostracofauna, benthic Foraminifera and Mollusks, the communities of the lower levels are interpreted as originated in paleoenvironments of external marine platform, whereas those of the upper levels are typical of circalittoral conditions of an inner platform. The levels overlying the unconformity are atributed to the Globorotalia puncticulata biozone (Upper Zanclean), wereas those under them, are discussed as Upper Messinian-Lowermost Pliocene age