Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)

The late Messinian Sorbas Member, up to 75 m thick, consists in its type area of a parasequence sel of three prograding coastal barriers (sequences I-III), associated With lagoon and washover sediments. Around the town of Sorbas these strata can be studied exceptionally well due 10 absence of burrow...

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Detalhes bibliográficos
Autores: Roep, Th.B., Dabrio González, Cristino José, Fortuin, A.R., Polo Camacho, Dolores
Tipo de documento: artigo
Data de publicação:1998
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositório:Docta Complutense
Idioma:inglês
OAI Identifier:oai:docta.ucm.es:20.500.14352/56795
Acesso em linha:https://hdl.handle.net/20.500.14352/56795
Access Level:Acceso aberto
Palavra-chave:Messinian
Sea-level fluctuations
Beach barriers
Washover fan
sequence stratigraphy
Geología estratigráfica
2506.19 Estratigrafía
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spelling Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)Roep, Th.B.Dabrio González, Cristino JoséFortuin, A.R.Polo Camacho, DoloresMessinianSea-level fluctuationsBeach barriersWashover fansequence stratigraphyGeología estratigráfica2506.19 EstratigrafíaThe late Messinian Sorbas Member, up to 75 m thick, consists in its type area of a parasequence sel of three prograding coastal barriers (sequences I-III), associated With lagoon and washover sediments. Around the town of Sorbas these strata can be studied exceptionally well due 10 absence of burrowing by raised Messinian salinities and exposure along a network of up to 30 m deep canyons. Fifteen vertical sections were logged and careífully correlated. This permits to reconstruct and discuss pattems of relative sea-level movements between decímetres. up to 15 m within a parasequence. Excellent examples of non-tidal transgressive facies are characterized by lagoon and washover sedimenls instead of The usual combinatíon of washover and tidal deposits (channel and flood-tidal delta). Implications for the sandstone connectivity are given. The lower two sequences Are deposited in a relatively large tectonically enhanced wedge-shaped accommodation space. The show both fining-up, deepening sequences, followed by prograding coarsening-up shoaling sequences and can be compared to the c1assical parasequences of the Westem Interior Basin (USA). Progradation of sequence II was intemlpted by a major slide event (most likely triggered by an earthquake), which caused more than 400 m seaward slumping of a stretch of 1 km of coastal sands. The architecture of sequence III is more complex due to limited accommodation space characterístic for the late híghstand, so that this setting was very sensitive to sea-level fluctuations. This resulted in an intricate pattem of juxtaposed and superposed lagoonal muds, washover üms and swash zones. So-called "stranded" coastal barriers occur, which were lef behind after seaward Jump of the coastline over more than 1.5 km during forced regression. The pattem of reconstructed sea-level positions is weIl comparable to the sequential partem shown by the correlated equivalent, along the northem basin margin, which belong to the so-called Terminal Carbonate Complex. The problem of ranking the complex sequence III as one or more parasequences and it, consequences for cyclostratigraphy are shortly discussed. Two models of washover formation are given, respectively during more rapid and more slow sea-level rise. The intluence of synsedimentary folding on the location of barriers is discussed and also the source arca of extra and intraclasts supplied to barriers and washovers. After deposition of the Sorbas Member the sea withdrew from the Sorbas Basin, probably as a result of the majar downdrop in lhe Mediterranean at the maximum colation during the Salinity Crisis. It 15 suggested that the semi-enclosed selting of the basin resulted only in límited localized eros ion, in contrast to the deeper adjacent Vera Basin, which was more open to the Mediterranean.Elsevier Science B.V.Universidad Complutense de Madrid19981998-02-0119981998-02-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/56795reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/567952026-06-02T12:44:21Z
dc.title.none.fl_str_mv Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
title Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
spellingShingle Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
Roep, Th.B.
Messinian
Sea-level fluctuations
Beach barriers
Washover fan
sequence stratigraphy
Geología estratigráfica
2506.19 Estratigrafía
title_short Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
title_full Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
title_fullStr Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
title_full_unstemmed Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
title_sort Late highstand patterns of shifting and stepping coastal barriers and washover-fans (late Messinian, Sorbas Basin, SE Spain)
dc.creator.none.fl_str_mv Roep, Th.B.
Dabrio González, Cristino José
Fortuin, A.R.
Polo Camacho, Dolores
author Roep, Th.B.
author_facet Roep, Th.B.
Dabrio González, Cristino José
Fortuin, A.R.
Polo Camacho, Dolores
author_role author
author2 Dabrio González, Cristino José
Fortuin, A.R.
Polo Camacho, Dolores
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv Messinian
Sea-level fluctuations
Beach barriers
Washover fan
sequence stratigraphy
Geología estratigráfica
2506.19 Estratigrafía
topic Messinian
Sea-level fluctuations
Beach barriers
Washover fan
sequence stratigraphy
Geología estratigráfica
2506.19 Estratigrafía
description The late Messinian Sorbas Member, up to 75 m thick, consists in its type area of a parasequence sel of three prograding coastal barriers (sequences I-III), associated With lagoon and washover sediments. Around the town of Sorbas these strata can be studied exceptionally well due 10 absence of burrowing by raised Messinian salinities and exposure along a network of up to 30 m deep canyons. Fifteen vertical sections were logged and careífully correlated. This permits to reconstruct and discuss pattems of relative sea-level movements between decímetres. up to 15 m within a parasequence. Excellent examples of non-tidal transgressive facies are characterized by lagoon and washover sedimenls instead of The usual combinatíon of washover and tidal deposits (channel and flood-tidal delta). Implications for the sandstone connectivity are given. The lower two sequences Are deposited in a relatively large tectonically enhanced wedge-shaped accommodation space. The show both fining-up, deepening sequences, followed by prograding coarsening-up shoaling sequences and can be compared to the c1assical parasequences of the Westem Interior Basin (USA). Progradation of sequence II was intemlpted by a major slide event (most likely triggered by an earthquake), which caused more than 400 m seaward slumping of a stretch of 1 km of coastal sands. The architecture of sequence III is more complex due to limited accommodation space characterístic for the late híghstand, so that this setting was very sensitive to sea-level fluctuations. This resulted in an intricate pattem of juxtaposed and superposed lagoonal muds, washover üms and swash zones. So-called "stranded" coastal barriers occur, which were lef behind after seaward Jump of the coastline over more than 1.5 km during forced regression. The pattem of reconstructed sea-level positions is weIl comparable to the sequential partem shown by the correlated equivalent, along the northem basin margin, which belong to the so-called Terminal Carbonate Complex. The problem of ranking the complex sequence III as one or more parasequences and it, consequences for cyclostratigraphy are shortly discussed. Two models of washover formation are given, respectively during more rapid and more slow sea-level rise. The intluence of synsedimentary folding on the location of barriers is discussed and also the source arca of extra and intraclasts supplied to barriers and washovers. After deposition of the Sorbas Member the sea withdrew from the Sorbas Basin, probably as a result of the majar downdrop in lhe Mediterranean at the maximum colation during the Salinity Crisis. It 15 suggested that the semi-enclosed selting of the basin resulted only in límited localized eros ion, in contrast to the deeper adjacent Vera Basin, which was more open to the Mediterranean.
publishDate 1998
dc.date.none.fl_str_mv 1998
1998-02-01
1998
1998-02-01
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/20.500.14352/56795
url https://hdl.handle.net/20.500.14352/56795
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 Elsevier Science B.V.
publisher.none.fl_str_mv Elsevier Science B.V.
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
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score 15,300719

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