Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)

This first sedimentary interpretation of two incised-valley fills in the Gulf of Cádiz (southern Spain), which accumulated during the last fourth-order eustatic cycle in response to fluvial incision, changes of sea level, and correlative deposition, relates the filling of the estuarine basins and th...

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Autores: Dabrio González, Cristino José, Zazo Cardeña , Caridad, Lario Gómez, Javier, Goy Goy, José Luis, Sierro, Francisco Javier, Borja, Francisco, González Delgado, José Ángel, Flores Villarejo, José Abel
Formato: artículo
Fecha de publicación:1999
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/57475
Acesso em linha:https://hdl.handle.net/20.500.14352/57475
Access Level:acceso abierto
Palavra-chave:551.35(460.355)
Estuarine deposits
Flandrian transgression
Late Pleistocene
Radiocarbon data
Spit barriers
Geodinámica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/57475
network_acronym_str ES
network_name_str España
repository_id_str
spelling Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)Dabrio González, Cristino JoséZazo Cardeña , CaridadLario Gómez, JavierGoy Goy, José LuisSierro, Francisco JavierBorja, FranciscoGonzález Delgado, José ÁngelFlores Villarejo, José Abel551.35(460.355)Estuarine depositsFlandrian transgressionLate PleistoceneRadiocarbon dataSpit barriersGeodinámica2507 GeofísicaThis first sedimentary interpretation of two incised-valley fills in the Gulf of Cádiz (southern Spain), which accumulated during the last fourth-order eustatic cycle in response to fluvial incision, changes of sea level, and correlative deposition, relates the filling of the estuarine basins and their barriers with four regional progradation phases, H1 to H4. The cases studied are the wave-dominated Guadalete, and the mixed, tide and wave-dominated Odiel-Tinto estuaries. The sequence boundary is a type-1 surface produced during the lowstand of the Last Glacial period ca. 18 000 14C yr BP. No fluvial lowstand deposits were found in the area. Due to rapid transgression the valley fills consist of transgressive and highstand sediments. The maximum landward advance of the estuarine barriers occurred ca. 6500–6000 14C yr BP during the maximum of the Flandrian transgression, but there is no evidence of sea level rising appreciably above the present. A large part of the estuaries was filled during H1 (ca. 6500–4400 14C yr BP) but ravinement by shifting tidal inlets destroyed most of the coeval barriers. During the H2 phase (ca. 4200–2550 14C yr BP) sedimentation was favoured by arid conditions and concentrated in the axial estuarine zones and the barriers. Between H2 and H3 prevailing winds changed from W to WSW, increasing spit growth to the east and south-east. Progradation of bay-head deltas and flood-plains during H3 (ca. 2300–800 14C yr BP) and H4 (500 yr ago to the present) further reduced the accommodation space in the largely-filled valleys, and sediment by-passed the estuaries and accumulated in the estuarine barriers as fast-growing spits. Arid conditions and increasing human activity have caused rapid coastal modifications.Royal Geological and Mining Society of the NetherlandUniversidad Complutense de Madrid19991999-01-0119991999-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/57475reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/574752026-06-02T12:44:21Z
dc.title.none.fl_str_mv Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
title Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
spellingShingle Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
Dabrio González, Cristino José
551.35(460.355)
Estuarine deposits
Flandrian transgression
Late Pleistocene
Radiocarbon data
Spit barriers
Geodinámica
2507 Geofísica
title_short Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
title_full Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
title_fullStr Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
title_full_unstemmed Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
title_sort Sequence stratigraphy of Holocene incised-valley fills and coastal evolution in the Gulf of Cádiz (southern Spain)
dc.creator.none.fl_str_mv Dabrio González, Cristino José
Zazo Cardeña , Caridad
Lario Gómez, Javier
Goy Goy, José Luis
Sierro, Francisco Javier
Borja, Francisco
González Delgado, José Ángel
Flores Villarejo, José Abel
author Dabrio González, Cristino José
author_facet Dabrio González, Cristino José
Zazo Cardeña , Caridad
Lario Gómez, Javier
Goy Goy, José Luis
Sierro, Francisco Javier
Borja, Francisco
González Delgado, José Ángel
Flores Villarejo, José Abel
author_role author
author2 Zazo Cardeña , Caridad
Lario Gómez, Javier
Goy Goy, José Luis
Sierro, Francisco Javier
Borja, Francisco
González Delgado, José Ángel
Flores Villarejo, José Abel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.35(460.355)
Estuarine deposits
Flandrian transgression
Late Pleistocene
Radiocarbon data
Spit barriers
Geodinámica
2507 Geofísica
topic 551.35(460.355)
Estuarine deposits
Flandrian transgression
Late Pleistocene
Radiocarbon data
Spit barriers
Geodinámica
2507 Geofísica
description This first sedimentary interpretation of two incised-valley fills in the Gulf of Cádiz (southern Spain), which accumulated during the last fourth-order eustatic cycle in response to fluvial incision, changes of sea level, and correlative deposition, relates the filling of the estuarine basins and their barriers with four regional progradation phases, H1 to H4. The cases studied are the wave-dominated Guadalete, and the mixed, tide and wave-dominated Odiel-Tinto estuaries. The sequence boundary is a type-1 surface produced during the lowstand of the Last Glacial period ca. 18 000 14C yr BP. No fluvial lowstand deposits were found in the area. Due to rapid transgression the valley fills consist of transgressive and highstand sediments. The maximum landward advance of the estuarine barriers occurred ca. 6500–6000 14C yr BP during the maximum of the Flandrian transgression, but there is no evidence of sea level rising appreciably above the present. A large part of the estuaries was filled during H1 (ca. 6500–4400 14C yr BP) but ravinement by shifting tidal inlets destroyed most of the coeval barriers. During the H2 phase (ca. 4200–2550 14C yr BP) sedimentation was favoured by arid conditions and concentrated in the axial estuarine zones and the barriers. Between H2 and H3 prevailing winds changed from W to WSW, increasing spit growth to the east and south-east. Progradation of bay-head deltas and flood-plains during H3 (ca. 2300–800 14C yr BP) and H4 (500 yr ago to the present) further reduced the accommodation space in the largely-filled valleys, and sediment by-passed the estuaries and accumulated in the estuarine barriers as fast-growing spits. Arid conditions and increasing human activity have caused rapid coastal modifications.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-01-01
1999
1999-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/57475
url https://hdl.handle.net/20.500.14352/57475
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Geological and Mining Society of the Netherland
publisher.none.fl_str_mv Royal Geological and Mining Society of the Netherland
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417415828307968
score 15.301603

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