Cronoestratigrafía de los registros aluviales del tránsito Pleistoceno superior-Holoceno en la depresión de la Bardena Blanca (Navarra)
In this work, preliminary chronostratigaphic features of the Upper Pleistocene-Holocene morphosedimentary alluvial unit covering the bottom of the Bardena Blanca depression are described. This unit is made up by 1) gravels and sands related to a braided channel system, 2) laminated sands and clays a...
| Autores: | , , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2006 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8594 |
| Acesso em linha: | http://hdl.handle.net/10272/8594 |
| Access Level: | acceso abierto |
| Palavra-chave: | Morphosedimentary alluvial unit Upper Pleistocene-Holocene Bardenas Reales Ebro basin |
| Resumo: | In this work, preliminary chronostratigaphic features of the Upper Pleistocene-Holocene morphosedimentary alluvial unit covering the bottom of the Bardena Blanca depression are described. This unit is made up by 1) gravels and sands related to a braided channel system, 2) laminated sands and clays accumulated in distal flats of alluvial fans and 3) clays and gypsums corresponding to a playa-lake environment. According the first chronological data supplied by OSL and 14C the age of this sequence ranges between 18 and 5 ka. The prevailed paleoclimatic conditions were cold and humid during Last Glacial Maximum-Oldest Dryas and arid during Lower Holocene |
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