From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)

Quijada, Isabel Emma; Suárez González, Pablo; Benito Moreno, María Isabel; Lugli, Stefano; Mas Mayoral, José Ramón

From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)

Interpreting the origin of carbonate breccias requires a detailed analysis because they may be the result of a wide variety of processes that produce similar features. This is the case of the Lower Cretaceous carbonate breccias of the Cameros Basin (previously interpreted as slump or collapse brecci...

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Detalles Bibliográficos
Autores:	Quijada, Isabel Emma, Suárez González, Pablo, Benito Moreno, María Isabel, Lugli, Stefano, Mas Mayoral, José Ramón
Tipo de recurso:	artículo
Fecha de publicación:	2014
País:	España
Institución:	Universidad Complutense de Madrid (UCM)
Repositorio:	Docta Complutense
Idioma:	inglés
OAI Identifier:	oai:docta.ucm.es:20.500.14352/33801
Acceso en línea:	https://hdl.handle.net/20.500.14352/33801
Access Level:	acceso abierto
Palabra clave:	552.5 551.24 Carbonate brecciation Carbonate–sulphate deposits Tectonic deformation Tectonically-driven evaporite flow Lower Cretaceous Cameros Basin Geodinámica Petrología 2507 Geofísica

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spelling	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)Quijada, Isabel EmmaSuárez González, PabloBenito Moreno, María IsabelLugli, StefanoMas Mayoral, José Ramón552.5551.24Carbonate brecciationCarbonate–sulphate depositsTectonic deformationTectonically-driven evaporite flowLower CretaceousCameros BasinGeodinámicaPetrología2507 GeofísicaInterpreting the origin of carbonate breccias requires a detailed analysis because they may be the result of a wide variety of processes that produce similar features. This is the case of the Lower Cretaceous carbonate breccias of the Cameros Basin (previously interpreted as slump or collapse breccias), whose origin is interpreted after performing a detailed sedimentary, petrographic and tectonic study. The studied carbonate breccias consist of angular carbonate mudstone fragments floating in a matrix of calcite and quartz crystals. The breccias are interbedded with, and laterally associated to, alternating layers of carbonate mudstone and calcite and quartz pseudomorphs after gypsum, which show strong similirities to the breccia fragments and matrix, respectively, suggesting that the brecciated beds were originally composed of identical alternating carbonate mudstone and gypsum layers as the unbrecciated layers. The breccias are associated with frequently polyharmonic deformation structures, which are similarly oriented as the regional tectonic structures, indicating that they are related with the alpine contractional deformation of this area of the Cameros Basin. All these features suggest that the carbonate breccias were formed by tectonic deformation of alternating layers of carbonate mudstone and calcium sulphate, which have very different rheological behaviours. As a result, during tectonic deformation, sulphate flowed and carbonate layers were broken and displaced, producing a breccia of carbonate fragments within a sulphate groundmass. Afterwards, the sulphate groundmass was replaced by quartz and calcite, and the breccia acquired its final composition.ElsevierUniversidad Complutense de Madrid20142014-01-0120142014-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/33801reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/338012026-06-02T12:44:21Z
dc.title.none.fl_str_mv	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
title	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
spellingShingle	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain) Quijada, Isabel Emma 552.5 551.24 Carbonate brecciation Carbonate–sulphate deposits Tectonic deformation Tectonically-driven evaporite flow Lower Cretaceous Cameros Basin Geodinámica Petrología 2507 Geofísica
title_short	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
title_full	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
title_fullStr	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
title_full_unstemmed	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
title_sort	From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)
dc.creator.none.fl_str_mv	Quijada, Isabel Emma Suárez González, Pablo Benito Moreno, María Isabel Lugli, Stefano Mas Mayoral, José Ramón
author	Quijada, Isabel Emma
author_facet	Quijada, Isabel Emma Suárez González, Pablo Benito Moreno, María Isabel Lugli, Stefano Mas Mayoral, José Ramón
author_role	author
author2	Suárez González, Pablo Benito Moreno, María Isabel Lugli, Stefano Mas Mayoral, José Ramón
author2_role	author author author author
dc.contributor.none.fl_str_mv	Universidad Complutense de Madrid
dc.subject.none.fl_str_mv	552.5 551.24 Carbonate brecciation Carbonate–sulphate deposits Tectonic deformation Tectonically-driven evaporite flow Lower Cretaceous Cameros Basin Geodinámica Petrología 2507 Geofísica
topic	552.5 551.24 Carbonate brecciation Carbonate–sulphate deposits Tectonic deformation Tectonically-driven evaporite flow Lower Cretaceous Cameros Basin Geodinámica Petrología 2507 Geofísica
description	Interpreting the origin of carbonate breccias requires a detailed analysis because they may be the result of a wide variety of processes that produce similar features. This is the case of the Lower Cretaceous carbonate breccias of the Cameros Basin (previously interpreted as slump or collapse breccias), whose origin is interpreted after performing a detailed sedimentary, petrographic and tectonic study. The studied carbonate breccias consist of angular carbonate mudstone fragments floating in a matrix of calcite and quartz crystals. The breccias are interbedded with, and laterally associated to, alternating layers of carbonate mudstone and calcite and quartz pseudomorphs after gypsum, which show strong similirities to the breccia fragments and matrix, respectively, suggesting that the brecciated beds were originally composed of identical alternating carbonate mudstone and gypsum layers as the unbrecciated layers. The breccias are associated with frequently polyharmonic deformation structures, which are similarly oriented as the regional tectonic structures, indicating that they are related with the alpine contractional deformation of this area of the Cameros Basin. All these features suggest that the carbonate breccias were formed by tectonic deformation of alternating layers of carbonate mudstone and calcium sulphate, which have very different rheological behaviours. As a result, during tectonic deformation, sulphate flowed and carbonate layers were broken and displaced, producing a breccia of carbonate fragments within a sulphate groundmass. Afterwards, the sulphate groundmass was replaced by quartz and calcite, and the breccia acquired its final composition.
publishDate	2014
dc.date.none.fl_str_mv	2014 2014-01-01 2014 2014-01-01
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/20.500.14352/33801
url	https://hdl.handle.net/20.500.14352/33801
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
publisher.none.fl_str_mv	Elsevier
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	15,300724

From carbonate–sulphate interbeds to carbonate breccias: The role of tectonic deformation and diagenetic processes (Cameros Basin, Lower Cretaceous, N Spain)

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