Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado

High resolution seismic profiles have been used to make a detailed comparative study of the Late Quaternary stratigraphic architecture of continental shelves of southern Spain (Gulf of Cadiz and Alboran Sea). A 4th-order Type 1 depositional sequence (100-110 kyr) composed of FWRST, LST, TST and HST...

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Autores: Lobo, Francisco José, Hernández-Molina, Francisco J., Somoza, Luis, Díaz-del-Río-Español, Víctor
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/320630
Acceso en línea:http://hdl.handle.net/10261/320630
Access Level:acceso abierto
Palabra clave:Medio Marino
Centro Oceanográfico de Málaga
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spelling Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparadoLobo, Francisco JoséHernández-Molina, Francisco J.Somoza, LuisDíaz-del-Río-Español, VíctorMedio MarinoCentro Oceanográfico de MálagaHigh resolution seismic profiles have been used to make a detailed comparative study of the Late Quaternary stratigraphic architecture of continental shelves of southern Spain (Gulf of Cadiz and Alboran Sea). A 4th-order Type 1 depositional sequence (100-110 kyr) composed of FWRST, LST, TST and HST has been determined in both areas. FWRST developed during the regressive interval of isotopic stage 3. LST is related to the onset of isotopic stage 2 when sealevel was around 120 m below its present level. TST is characterised by backstepping and agradational deposits developed between 14-6.5 ky. HST is composed of modern deltaic and infralittoral bodies developed during the last 6.5 ky. The Late Quaternary sedimentary evolution of the continental shelf was controlled by the last 4th order asymmetric relative sea-level cycle. The following considerations can be extracted: a) Volumetrically: the FRST and LST are the most important components of the sequence, b) RST, LST, and HST are characterised by low-energy prodeltaic facies and high-energy infralittoral prograding wedges, c) TST comprises a wide variety of coastal depositional. d) Isopachs maps of each system tract show a parallel distribution along the shelf, with a relatively homogeneous thickness.No202320232000info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/320630reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Málagainfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3206302026-05-22T06:33:51Z
dc.title.none.fl_str_mv Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
title Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
spellingShingle Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
Lobo, Francisco José
Medio Marino
Centro Oceanográfico de Málaga
title_short Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
title_full Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
title_fullStr Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
title_full_unstemmed Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
title_sort Los depósitos de la última secuencia deposicional de la plataforma continental del Golfo de Cádiz y del Mar de Alborán: Estudio comparado
dc.creator.none.fl_str_mv Lobo, Francisco José
Hernández-Molina, Francisco J.
Somoza, Luis
Díaz-del-Río-Español, Víctor
author Lobo, Francisco José
author_facet Lobo, Francisco José
Hernández-Molina, Francisco J.
Somoza, Luis
Díaz-del-Río-Español, Víctor
author_role author
author2 Hernández-Molina, Francisco J.
Somoza, Luis
Díaz-del-Río-Español, Víctor
author2_role author
author
author
dc.subject.none.fl_str_mv Medio Marino
Centro Oceanográfico de Málaga
topic Medio Marino
Centro Oceanográfico de Málaga
description High resolution seismic profiles have been used to make a detailed comparative study of the Late Quaternary stratigraphic architecture of continental shelves of southern Spain (Gulf of Cadiz and Alboran Sea). A 4th-order Type 1 depositional sequence (100-110 kyr) composed of FWRST, LST, TST and HST has been determined in both areas. FWRST developed during the regressive interval of isotopic stage 3. LST is related to the onset of isotopic stage 2 when sealevel was around 120 m below its present level. TST is characterised by backstepping and agradational deposits developed between 14-6.5 ky. HST is composed of modern deltaic and infralittoral bodies developed during the last 6.5 ky. The Late Quaternary sedimentary evolution of the continental shelf was controlled by the last 4th order asymmetric relative sea-level cycle. The following considerations can be extracted: a) Volumetrically: the FRST and LST are the most important components of the sequence, b) RST, LST, and HST are characterised by low-energy prodeltaic facies and high-energy infralittoral prograding wedges, c) TST comprises a wide variety of coastal depositional. d) Isopachs maps of each system tract show a parallel distribution along the shelf, with a relatively homogeneous thickness.
publishDate 2000
dc.date.none.fl_str_mv 2000
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/320630
url http://hdl.handle.net/10261/320630
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Málaga
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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