Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)

The occurrence of a generalized remagnetization at 100 Ma makes the Cameros Basin, an 8 km thick Cretaceous extensional trough inverted during the Cenozoic, a perfect natural frame to apply paleomagnetic vectors to geometrical reconstructions. The widespread remagnetization that occurred between the...

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Autores: García-Lasanta, C., Casas-Sainz, Antonio M., Villalaín, Juan J., Oliva-Urcia, Belén, Mochales López, Tania, Speranza, Fabio
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/276710
Acceso en línea:http://hdl.handle.net/10261/276710
https://doi.org/10.1002/2016TC004459
Access Level:acceso abierto
Palabra clave:remagnetization
Basin inversions
Cameros Basin
unfolding
hinge migration
small circles intersection
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spelling Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)García-Lasanta, C.Casas-Sainz, Antonio M.Villalaín, Juan J.Oliva-Urcia, BelénMochales López, TaniaSperanza, FabioremagnetizationBasin inversionsCameros Basinunfoldinghinge migrationsmall circles intersectionThe occurrence of a generalized remagnetization at 100 Ma makes the Cameros Basin, an 8 km thick Cretaceous extensional trough inverted during the Cenozoic, a perfect natural frame to apply paleomagnetic vectors to geometrical reconstructions. The widespread remagnetization that occurred between the extensional and compressional episodes, linked to low‐grade metamorphism, provides a tool to reconstruct the attitude of beds at the remagnetization time, thus giving a picture of basin geometry during the Cretaceous. This snapshot is compared with the present‐day geometry to constrain the large‐scale kinematic evolution of folds between these two stages. According to this methodology, a syncline, preinversion geometry of the sedimentary basin was determined and the position of its main axial surface was accurately located. Comparing with the present‐day, postinversion geometry, a northward hinge migration of around 5 km is inferred. This migration is the result of the southward back thrusting in the southern basin border, favored by the detachment level at the base of the Mesozoic cover. Conversely, the main northward directed thrust, which involved both the Paleozoic basement and the Mesozoic cover, did not significantly affect the internal structure of the basin in spite of its overall displacement of more than 20 km.Departamento de Ciencias de la Tierra, Universidad de Zaragoza, EspañaGeotransfer, Universidad de Zaragoza, EspañaDepartamento de Física, Universidad de Burgos, EspañaDepartamento de Geología y Geoquímica, Universidad Autónoma de Madrid, EspañaInstituto Geológico y Minero de España, EspañaIstituto Nazionale di Geofisica e Vulcanologia, ItaliaJohn Wiley & SonsMinisterio de Ciencia e Innovación (España)Ministerio de Economía y Competitividad (España)European Commission202220222017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/276710https://doi.org/10.1002/2016TC004459reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#CGL2009-08969CGL2012-38481CGL2013- 42670-PCGL2016-77560https://agupubs.onlinelibrary.wiley.com/doi/10.1002/2016TC004459Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2767102026-05-22T06:33:51Z
dc.title.none.fl_str_mv Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
title Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
spellingShingle Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
García-Lasanta, C.
remagnetization
Basin inversions
Cameros Basin
unfolding
hinge migration
small circles intersection
title_short Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
title_full Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
title_fullStr Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
title_full_unstemmed Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
title_sort Remagnetizations used to unravel large-scale fold kinematics: a case study in the Cameros Basin (Northern Spain)
dc.creator.none.fl_str_mv García-Lasanta, C.
Casas-Sainz, Antonio M.
Villalaín, Juan J.
Oliva-Urcia, Belén
Mochales López, Tania
Speranza, Fabio
author García-Lasanta, C.
author_facet García-Lasanta, C.
Casas-Sainz, Antonio M.
Villalaín, Juan J.
Oliva-Urcia, Belén
Mochales López, Tania
Speranza, Fabio
author_role author
author2 Casas-Sainz, Antonio M.
Villalaín, Juan J.
Oliva-Urcia, Belén
Mochales López, Tania
Speranza, Fabio
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Ministerio de Economía y Competitividad (España)
European Commission
dc.subject.none.fl_str_mv remagnetization
Basin inversions
Cameros Basin
unfolding
hinge migration
small circles intersection
topic remagnetization
Basin inversions
Cameros Basin
unfolding
hinge migration
small circles intersection
description The occurrence of a generalized remagnetization at 100 Ma makes the Cameros Basin, an 8 km thick Cretaceous extensional trough inverted during the Cenozoic, a perfect natural frame to apply paleomagnetic vectors to geometrical reconstructions. The widespread remagnetization that occurred between the extensional and compressional episodes, linked to low‐grade metamorphism, provides a tool to reconstruct the attitude of beds at the remagnetization time, thus giving a picture of basin geometry during the Cretaceous. This snapshot is compared with the present‐day geometry to constrain the large‐scale kinematic evolution of folds between these two stages. According to this methodology, a syncline, preinversion geometry of the sedimentary basin was determined and the position of its main axial surface was accurately located. Comparing with the present‐day, postinversion geometry, a northward hinge migration of around 5 km is inferred. This migration is the result of the southward back thrusting in the southern basin border, favored by the detachment level at the base of the Mesozoic cover. Conversely, the main northward directed thrust, which involved both the Paleozoic basement and the Mesozoic cover, did not significantly affect the internal structure of the basin in spite of its overall displacement of more than 20 km.
publishDate 2017
dc.date.none.fl_str_mv 2017
2022
2022
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/10261/276710
https://doi.org/10.1002/2016TC004459
url http://hdl.handle.net/10261/276710
https://doi.org/10.1002/2016TC004459
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
CGL2009-08969
CGL2012-38481
CGL2013- 42670-P
CGL2016-77560
https://agupubs.onlinelibrary.wiley.com/doi/10.1002/2016TC004459
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
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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score 15,811543

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