Indicadores geoquímicos de cambios ambientales en secuencias aluviales holocenas de Bardenas Reales
Geochemical features and Chemical Index of Alteration (CIA), corrected for Ca from calcite, were studied in Holocene alluvial sequences from Bardenas Reales of Navarra. The five sequences, distinguished by using morphochronostratigraphic evidences, show a different geochemical pattern controlled by...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2009 |
| 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:10272/7972 |
| Acceso en línea: | http://hdl.handle.net/10272/7972 |
| Access Level: | acceso abierto |
| Palabra clave: | Alluvial sequences Chemical Index of Alteration Holocene Bardenas Reales |
| Sumario: | Geochemical features and Chemical Index of Alteration (CIA), corrected for Ca from calcite, were studied in Holocene alluvial sequences from Bardenas Reales of Navarra. The five sequences, distinguished by using morphochronostratigraphic evidences, show a different geochemical pattern controlled by granulometric characteristics, bedrock weathering and soil processes. Geochemical proxies (CIA) indicate an increase in moisture during some phases of Early and Middle Holocene |
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