Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources

Outstanding potential field anomalies (gravimetric and magnetic) in the Cameros Basin (N Spain) follow a WNW-ESE trend, parallel to the geological structures resulting from Mesozoic extension and Tertiary basin inversion. The positive Bouguer gravity anomaly (15 mGal) is interpreted as the result of...

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Autores: Río, Pedro del, Casas Cendoya, Ana María, Villalaín, Juan J., Mochales López, Tania, Soto, Ruth, Oliva-Urcia, Belén
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/88771
Acceso en línea:http://hdl.handle.net/10261/88771
Access Level:acceso abierto
Palabra clave:Cameros Basin
Iberian plate
sedimentary basin
modeling
magnetics
gravity
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spelling Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sourcesRío, Pedro delCasas Cendoya, Ana MaríaVillalaín, Juan J.Mochales López, TaniaSoto, RuthOliva-Urcia, BelénCameros BasinIberian platesedimentary basinmodelingmagneticsgravityOutstanding potential field anomalies (gravimetric and magnetic) in the Cameros Basin (N Spain) follow a WNW-ESE trend, parallel to the geological structures resulting from Mesozoic extension and Tertiary basin inversion. The positive Bouguer gravity anomaly (15 mGal) is interpreted as the result of a strong contrast between the density of Tertiary rocks of the foreland basin and the Paleozoic and Mesozoic rocks, combined with crustal thickening in the Iberian Chain with respect to the Ebro Basin. The dipolar magnetic anomaly, slightly shifted to the south with respect to the relative maximum of the Bouguer anomaly, can be interpreted as related to volcanic rocks within the basement, which are linked to Triassic rifting as witnessed by outcrops of basalts along the basin margins. An exhaustive analysis of rock properties (density, magnetic susceptibility and remanence) and basin geometry from other sources (seismic reflection profiles) allow to constrain variations in crustal thickness and the location of large-scale basement faults. © 2013 Institute of Geophysics of the ASCR, v.v.i.The authors thank Sylvia Gracia for her help in measuring with the KLY3S susceptibility meter. This study has been financed by the research projects CGL2009-08969 and CGL2009-10840 of the Spanish Ministry of Science and Innovation and CGL2012-38481 of the Spanish Ministry of Economy and Competitiveness. B.O.U acknowledges the “Juan de la Cierva Postdoctoral Program” from the MCINN.Peer ReviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2013201320132013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10261/88771reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Españolhttp://dx.doi.org/10.1007/s11200-012-0369-2Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/887712026-05-22T06:33:51Z
dc.title.none.fl_str_mv Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
title Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
spellingShingle Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
Río, Pedro del
Cameros Basin
Iberian plate
sedimentary basin
modeling
magnetics
gravity
title_short Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
title_full Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
title_fullStr Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
title_full_unstemmed Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
title_sort Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources
dc.creator.none.fl_str_mv Río, Pedro del
Casas Cendoya, Ana María
Villalaín, Juan J.
Mochales López, Tania
Soto, Ruth
Oliva-Urcia, Belén
author Río, Pedro del
author_facet Río, Pedro del
Casas Cendoya, Ana María
Villalaín, Juan J.
Mochales López, Tania
Soto, Ruth
Oliva-Urcia, Belén
author_role author
author2 Casas Cendoya, Ana María
Villalaín, Juan J.
Mochales López, Tania
Soto, Ruth
Oliva-Urcia, Belén
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cameros Basin
Iberian plate
sedimentary basin
modeling
magnetics
gravity
topic Cameros Basin
Iberian plate
sedimentary basin
modeling
magnetics
gravity
description Outstanding potential field anomalies (gravimetric and magnetic) in the Cameros Basin (N Spain) follow a WNW-ESE trend, parallel to the geological structures resulting from Mesozoic extension and Tertiary basin inversion. The positive Bouguer gravity anomaly (15 mGal) is interpreted as the result of a strong contrast between the density of Tertiary rocks of the foreland basin and the Paleozoic and Mesozoic rocks, combined with crustal thickening in the Iberian Chain with respect to the Ebro Basin. The dipolar magnetic anomaly, slightly shifted to the south with respect to the relative maximum of the Bouguer anomaly, can be interpreted as related to volcanic rocks within the basement, which are linked to Triassic rifting as witnessed by outcrops of basalts along the basin margins. An exhaustive analysis of rock properties (density, magnetic susceptibility and remanence) and basin geometry from other sources (seismic reflection profiles) allow to constrain variations in crustal thickness and the location of large-scale basement faults. © 2013 Institute of Geophysics of the ASCR, v.v.i.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/88771
url http://hdl.handle.net/10261/88771
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s11200-012-0369-2
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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
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