Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia

Trends in the topography of the Iberian Peninsula show a pronounced contrast. In the western part of the Iberian microplate the main topographic highs trend E-W to NE-SW and are periodically spaced with wavelengths of 250 km. Conversely, in the northeastern part, the region of the Iberian Chain, top...

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Autores: Fernández-Lozano, Javier, Sokoutis, D., Willingshofer, E., Dombrádi, E., Muñoz-Martín, A., Vicente, G. de, Cloetingh, S.
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/63922
Acceso en línea:http://hdl.handle.net/10261/63922
Access Level:acceso abierto
Palabra clave:Analog modeling
Folding
Gravity analysis
Inherit structures Iberia
Continental tectonics
Intraplate deformation
Topography
Rheology
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spelling Integrated gravity and topography analysis in analog models: Intraplate deformation in IberiaFernández-Lozano, JavierSokoutis, D.Willingshofer, E.Dombrádi, E.Muñoz-Martín, A.Vicente, G. deCloetingh, S.Analog modelingFoldingGravity analysisInherit structures IberiaContinental tectonicsIntraplate deformationTopographyRheologyTrends in the topography of the Iberian Peninsula show a pronounced contrast. In the western part of the Iberian microplate the main topographic highs trend E-W to NE-SW and are periodically spaced with wavelengths of 250 km. Conversely, in the northeastern part, the region of the Iberian Chain, topography is more irregular and strike directions vary from NW-SE to E-W and NE-SW. We relate this phenomenon to shortening of a continental lithosphere, which contains two different, well-defined domains of lithospheric strength. Our hypothesis is supported by physical analog models. A new processing method has been developed to assist the interpretation of the model results. It utilizes spectral analysis of gravity and topography data derived from the experiments. Folding of the crust and mantle lithosphere yields periodic gravity fluctuations, while thickening processes lead to localized gravity lows. In this way gravity data can be used to distinguish between the two forms of lithosphere deformation and to correlate areas that underwent the same type of deformation. Gravity modeling has been performed under full in-depth control of the experimental lithosphere structure. As such, gravity signals from the models may be compared to field gravity data for better understanding the underlying deformation mechanism.Peer reviewedAmerican Geophysical Union201320132012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/63922reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1029/2012TC003122info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/639222026-05-22T06:33:51Z
dc.title.none.fl_str_mv Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
title Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
spellingShingle Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
Fernández-Lozano, Javier
Analog modeling
Folding
Gravity analysis
Inherit structures Iberia
Continental tectonics
Intraplate deformation
Topography
Rheology
title_short Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
title_full Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
title_fullStr Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
title_full_unstemmed Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
title_sort Integrated gravity and topography analysis in analog models: Intraplate deformation in Iberia
dc.creator.none.fl_str_mv Fernández-Lozano, Javier
Sokoutis, D.
Willingshofer, E.
Dombrádi, E.
Muñoz-Martín, A.
Vicente, G. de
Cloetingh, S.
author Fernández-Lozano, Javier
author_facet Fernández-Lozano, Javier
Sokoutis, D.
Willingshofer, E.
Dombrádi, E.
Muñoz-Martín, A.
Vicente, G. de
Cloetingh, S.
author_role author
author2 Sokoutis, D.
Willingshofer, E.
Dombrádi, E.
Muñoz-Martín, A.
Vicente, G. de
Cloetingh, S.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Analog modeling
Folding
Gravity analysis
Inherit structures Iberia
Continental tectonics
Intraplate deformation
Topography
Rheology
topic Analog modeling
Folding
Gravity analysis
Inherit structures Iberia
Continental tectonics
Intraplate deformation
Topography
Rheology
description Trends in the topography of the Iberian Peninsula show a pronounced contrast. In the western part of the Iberian microplate the main topographic highs trend E-W to NE-SW and are periodically spaced with wavelengths of 250 km. Conversely, in the northeastern part, the region of the Iberian Chain, topography is more irregular and strike directions vary from NW-SE to E-W and NE-SW. We relate this phenomenon to shortening of a continental lithosphere, which contains two different, well-defined domains of lithospheric strength. Our hypothesis is supported by physical analog models. A new processing method has been developed to assist the interpretation of the model results. It utilizes spectral analysis of gravity and topography data derived from the experiments. Folding of the crust and mantle lithosphere yields periodic gravity fluctuations, while thickening processes lead to localized gravity lows. In this way gravity data can be used to distinguish between the two forms of lithosphere deformation and to correlate areas that underwent the same type of deformation. Gravity modeling has been performed under full in-depth control of the experimental lithosphere structure. As such, gravity signals from the models may be compared to field gravity data for better understanding the underlying deformation mechanism.
publishDate 2012
dc.date.none.fl_str_mv 2012
2013
2013
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/10261/63922
url http://hdl.handle.net/10261/63922
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1029/2012TC003122
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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 15,81155

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