Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain

14 páginas, 6 figuras, 1 tabla.-- El PDF del artículo es su versión post-print.

Detalles Bibliográficos
Autores: Thorndycraft, V. R., Benito, Gerardo, Walling, D. E., Sopeña, Alfonso, Sánchez Moya, Yolanda, Rico, María Teresa, Casas Planes, M. A.
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/12780
Acceso en línea:http://hdl.handle.net/10261/12780
Access Level:acceso abierto
Palabra clave:Palaeoflood hydrology
Slackwater flood deposits
Caesium-137
Flood chronology
Mediterranean region
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spelling Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE SpainThorndycraft, V. R.Benito, GerardoWalling, D. E.Sopeña, AlfonsoSánchez Moya, YolandaRico, María TeresaCasas Planes, M. A.Palaeoflood hydrologySlackwater flood depositsCaesium-137Flood chronologyMediterranean region14 páginas, 6 figuras, 1 tabla.-- El PDF del artículo es su versión post-print.During a palaeoflood study of the Llobregat River (NE Spain), analysis of 137Cs was carried out on slackwater flood deposits to obtain an improved flood chronology for the most recent flood sediments. At the Monistrol study reach, 137Cs was measured in flood deposits preserved in valley side rock alcoves, with a range of 137Cs concentrations of 2.80–10.06 mBq/g measured. The 137Cs was associated with sediment mobilised from the upstream catchment by erosion and transported to the alcoves during floods. The onset of measured caesium activity in the sedimentary profiles permitted the deposits to be divided between those from floods that occurred before the mid-1950s and those from events after this period. Combining the information derived from the slackwater flood stratigraphy, the minimum discharge estimates associated with the flood deposits, 137Cs analysis and the instrumental peak discharge series, it was possible to identify the particular flood events responsible for the majority of the slackwater flood units. At Vilomara, however, 137Cs activity was measured in palaeoflood deposits dated to the Late Bronze Age and located at an elevation not reached by the floodwaters of the largest modern events. The data from this site indicated that the 137Cs was not associated with sediments transported by floods but was rainfall-derived, the rainwater reaching the deposits through fissures in the rock. To ensure the successful application of caesium dating to slackwater flood deposits preserved within rock alcoves, or caves, some general guidelines are proposed. The technique is best applied: (1) when there is a sedimentary profile of greater than 1 m depth; (2) when the profile is sampled away from zones affected by direct percolation or springwater entering the alcove; and (3) where there are various levels of contrasting textures within the profile.The research was funded by the European Commission through the project “Systematic, palaeoflood and historical data for the improvement of flood risk estimation—SPHERE” (contract number EVG1-CT-1999-00010).Peer reviewedElsevier200920092005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65015160 bytesimage/gifhttp://hdl.handle.net/10261/12780reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.catena.2004.09.002info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/127802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
title Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
spellingShingle Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
Thorndycraft, V. R.
Palaeoflood hydrology
Slackwater flood deposits
Caesium-137
Flood chronology
Mediterranean region
title_short Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
title_full Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
title_fullStr Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
title_full_unstemmed Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
title_sort Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain
dc.creator.none.fl_str_mv Thorndycraft, V. R.
Benito, Gerardo
Walling, D. E.
Sopeña, Alfonso
Sánchez Moya, Yolanda
Rico, María Teresa
Casas Planes, M. A.
author Thorndycraft, V. R.
author_facet Thorndycraft, V. R.
Benito, Gerardo
Walling, D. E.
Sopeña, Alfonso
Sánchez Moya, Yolanda
Rico, María Teresa
Casas Planes, M. A.
author_role author
author2 Benito, Gerardo
Walling, D. E.
Sopeña, Alfonso
Sánchez Moya, Yolanda
Rico, María Teresa
Casas Planes, M. A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Palaeoflood hydrology
Slackwater flood deposits
Caesium-137
Flood chronology
Mediterranean region
topic Palaeoflood hydrology
Slackwater flood deposits
Caesium-137
Flood chronology
Mediterranean region
description 14 páginas, 6 figuras, 1 tabla.-- El PDF del artículo es su versión post-print.
publishDate 2005
dc.date.none.fl_str_mv 2005
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/12780
url http://hdl.handle.net/10261/12780
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.catena.2004.09.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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