Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.

[EN]A high-resolution calcite oxygen stable isotopic (d18O) record, covering the past 4000 years, was obtained from Kaite Cave, northern Spain. The record has a mean d18O value of -6.25% VPDB and a range of 2%. Spectral analysis of the d18O data shows significant periodicities of 2400–1900, 600, 150...

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Autores: Domínguez Villar, David, Wang, Xianfeng, Cheng, Hai, Martín Chivelet, Javier, Edwards, R. Lawrence
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/155450
Acceso en línea:http://hdl.handle.net/10366/155450
Access Level:acceso abierto
Palabra clave:Speleothem
High-resolution
oxygen isotopic variability
ocean source
2506 Geología
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spelling Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.Domínguez Villar, DavidWang, XianfengCheng, HaiMartín Chivelet, JavierEdwards, R. LawrenceSpeleothemHigh-resolutionoxygen isotopic variabilityocean source2506 Geología[EN]A high-resolution calcite oxygen stable isotopic (d18O) record, covering the past 4000 years, was obtained from Kaite Cave, northern Spain. The record has a mean d18O value of -6.25% VPDB and a range of 2%. Spectral analysis of the d18O data shows significant periodicities of 2400–1900, 600, 150, 27, and 22 years. The amplitudes during these periods range from 0.2% to 2%. Factors controlling the isotopic ratio in the speleothem were evaluated. The calcite is most likely precipitated under equilibrium conditions, with the cave calcite d18O interpreted as a proxy of oxygen isotopic composition in local rainwater. Other factors such as temperature or fractionation in the karst system prior to calcite precipitation are considered of negligible or of minor importance. Mechanisms affecting rainfall isotopic composition were also investigated on different time scales. Precipitation amount is the primary factor controlling the highfrequency d18O oscillations. Other climate parameters, such as changes of storm tracks may have significant contributions on centennial and millennial time scales.Proyecto CLISP (CGL-2004-01866) de la Dirección General de Investigación del Ministerio de Ciencia y Tecnología de España. David Domínguez Villar recibió fondos mediante una beca predoctoral (FPI-2001-0619).Elsevier202420242008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/155450reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésCGL-2004-01866info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1554502026-06-07T06:28:51Z
dc.title.none.fl_str_mv Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
title Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
spellingShingle Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
Domínguez Villar, David
Speleothem
High-resolution
oxygen isotopic variability
ocean source
2506 Geología
title_short Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
title_full Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
title_fullStr Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
title_full_unstemmed Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
title_sort Α high-resolution late Holocene speleothem record from Kaite Cave, northern Spain: δ18O variability and possible causes.
dc.creator.none.fl_str_mv Domínguez Villar, David
Wang, Xianfeng
Cheng, Hai
Martín Chivelet, Javier
Edwards, R. Lawrence
author Domínguez Villar, David
author_facet Domínguez Villar, David
Wang, Xianfeng
Cheng, Hai
Martín Chivelet, Javier
Edwards, R. Lawrence
author_role author
author2 Wang, Xianfeng
Cheng, Hai
Martín Chivelet, Javier
Edwards, R. Lawrence
author2_role author
author
author
author
dc.subject.none.fl_str_mv Speleothem
High-resolution
oxygen isotopic variability
ocean source
2506 Geología
topic Speleothem
High-resolution
oxygen isotopic variability
ocean source
2506 Geología
description [EN]A high-resolution calcite oxygen stable isotopic (d18O) record, covering the past 4000 years, was obtained from Kaite Cave, northern Spain. The record has a mean d18O value of -6.25% VPDB and a range of 2%. Spectral analysis of the d18O data shows significant periodicities of 2400–1900, 600, 150, 27, and 22 years. The amplitudes during these periods range from 0.2% to 2%. Factors controlling the isotopic ratio in the speleothem were evaluated. The calcite is most likely precipitated under equilibrium conditions, with the cave calcite d18O interpreted as a proxy of oxygen isotopic composition in local rainwater. Other factors such as temperature or fractionation in the karst system prior to calcite precipitation are considered of negligible or of minor importance. Mechanisms affecting rainfall isotopic composition were also investigated on different time scales. Precipitation amount is the primary factor controlling the highfrequency d18O oscillations. Other climate parameters, such as changes of storm tracks may have significant contributions on centennial and millennial time scales.
publishDate 2008
dc.date.none.fl_str_mv 2008
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/155450
url http://hdl.handle.net/10366/155450
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv CGL-2004-01866
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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