La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas

The tectonothermal evolution of the Lower-Cretaceous Cameros basin is characterized from the analysis of dimensions and orientation of quartz-filled tension gashes and study of fluid inclusions within them. In the four sites studied in the eastern part of the basin the direction of tension gashes is...

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Detalles Bibliográficos
Autores: Mata Campo, M. P., Gil Imaz, Andrés, Casas Sainz, Antonio, Pocoví Juan, Andrés, Canals, Àngels
Tipo de recurso: artículo
Fecha de publicación:1996
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/12646
Acceso en línea:http://hdl.handle.net/10272/12646
Access Level:acceso abierto
Palabra clave:Tension gashes
Very low-grade metamorphism
Fluid inclusions
Cameros basin
Lower Cretaceous extension
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spelling La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidasCretaceous extensión in the Cameros Basin (NW Iberían Chain): structural analysis of quartz-filled tension gashes y and study of fluid inclusionsMata Campo, M. P.Gil Imaz, AndrésCasas Sainz, AntonioPocoví Juan, AndrésCanals, ÀngelsTension gashesVery low-grade metamorphismFluid inclusionsCameros basinLower Cretaceous extensionThe tectonothermal evolution of the Lower-Cretaceous Cameros basin is characterized from the analysis of dimensions and orientation of quartz-filled tension gashes and study of fluid inclusions within them. In the four sites studied in the eastern part of the basin the direction of tension gashes is N120E and most of them are perpendicular to bedding, what allows to relate them with synsedimentary extension. Local extension determined from thickness of quartz veins varies from 2 to 12%, w ith the lo w e st extension rates in strata where ductile boudinage linked to pseudo-cleavage development in incompetent beds occurs. Paleotemperatures obtained from the study of primary fluid inclusions indicate a v aria tion o f 3 0 ° C (80° C with pressure correction) between the bottom and top of the Urbion Croup, separated by 2.500 m of stratigraphic thickness. From these data it can be inferred that (1) the present-day northdipping geometry of beds is not a syn-sedimentary feature but was acquired during the Tertiary inversion and (2) the geothermal gradient was normal during the syn-rift stageSociedad Geológica de España19961996-01-0119961996-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/12646reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/126462026-06-02T14:58:11Z
dc.title.none.fl_str_mv La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
Cretaceous extensión in the Cameros Basin (NW Iberían Chain): structural analysis of quartz-filled tension gashes y and study of fluid inclusions
title La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
spellingShingle La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
Mata Campo, M. P.
Tension gashes
Very low-grade metamorphism
Fluid inclusions
Cameros basin
Lower Cretaceous extension
title_short La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
title_full La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
title_fullStr La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
title_full_unstemmed La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
title_sort La extensión cretácica en la Cuenca de Cameros: resultados del análisis estructural de grietas de cuarzo y del estudio de inclusiones fluidas
dc.creator.none.fl_str_mv Mata Campo, M. P.
Gil Imaz, Andrés
Casas Sainz, Antonio
Pocoví Juan, Andrés
Canals, Àngels
author Mata Campo, M. P.
author_facet Mata Campo, M. P.
Gil Imaz, Andrés
Casas Sainz, Antonio
Pocoví Juan, Andrés
Canals, Àngels
author_role author
author2 Gil Imaz, Andrés
Casas Sainz, Antonio
Pocoví Juan, Andrés
Canals, Àngels
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Tension gashes
Very low-grade metamorphism
Fluid inclusions
Cameros basin
Lower Cretaceous extension
topic Tension gashes
Very low-grade metamorphism
Fluid inclusions
Cameros basin
Lower Cretaceous extension
description The tectonothermal evolution of the Lower-Cretaceous Cameros basin is characterized from the analysis of dimensions and orientation of quartz-filled tension gashes and study of fluid inclusions within them. In the four sites studied in the eastern part of the basin the direction of tension gashes is N120E and most of them are perpendicular to bedding, what allows to relate them with synsedimentary extension. Local extension determined from thickness of quartz veins varies from 2 to 12%, w ith the lo w e st extension rates in strata where ductile boudinage linked to pseudo-cleavage development in incompetent beds occurs. Paleotemperatures obtained from the study of primary fluid inclusions indicate a v aria tion o f 3 0 ° C (80° C with pressure correction) between the bottom and top of the Urbion Croup, separated by 2.500 m of stratigraphic thickness. From these data it can be inferred that (1) the present-day northdipping geometry of beds is not a syn-sedimentary feature but was acquired during the Tertiary inversion and (2) the geothermal gradient was normal during the syn-rift stage
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-01-01
1996
1996-01-01
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 http://hdl.handle.net/10272/12646
url http://hdl.handle.net/10272/12646
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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