Estudio paleomagnético del dique de Messejana-Plasencia

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dc.contributor.authorPalencia Ortas, Alicia
dc.contributor.authorOsete López, María Luisa
dc.contributor.authorMaceira, M.
dc.contributor.authorVillalaín Santamaría, Juan José
dc.contributor.authorVegas Martínez, Ramón
dc.date.accessioned2023-06-20T12:47:43Z
dc.date.available2023-06-20T12:47:43Z
dc.date.issued2004
dc.description.abstractA paleomagnetic investigation of 39 sites (591 samples) across the 530 km ot the Messejana-Plasenciadike has been carried out. Rock magnetic experiments indicate PSD low Ti titanomagnetite and magnetite as the minerals carrying the NRM. The samples where mostly demagnetised by thermal demagnetisation. Most sites exhibit a characteristic remanent component of normal polarity with the exception of two sites, where samples with reversed polarities have been observed. The paleomagnetic pole derived from the sites is well defined, with values ot Plat=70.5, Plong=238.0, K= 47.8 and ags=3.5. Paleomagnetic data indicates: (i) the dike had a brief emplacement time, (ii) the age of intrusion can be constrained between 180-200 Ma, (Hi) the high grouping of the VGPs directions suggest no important tectonic perturbations of the whole structure of the dike since its intrusion to the present.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipDirección General de Investigación Científica y Técnica
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/60893
dc.identifier.issn1576-5172
dc.identifier.officialurlhttp://www.sociedadgeologica.es/publicaciones_geotemas.html
dc.identifier.urihttps://hdl.handle.net/20.500.14352/52539
dc.issue.number4
dc.journal.titleGeotemas
dc.language.isospa
dc.page.final318
dc.page.initial316
dc.publisherSociedad Geológica de España.
dc.relation.projectIDPB98-08341
dc.relation.projectIDBTE2002-00854
dc.rights.accessRightsopen access
dc.subject.cdu550.384
dc.subject.keywordPaleomagnetism
dc.subject.keywordMessejana-Plasencia
dc.subject.keywordDike
dc.subject.keywordIberian Plate
dc.subject.keywordJurassic
dc.subject.ucmGeodinámica
dc.subject.unesco2507 Geofísica
dc.titleEstudio paleomagnético del dique de Messejana-Plasencia
dc.typejournal article
dc.volume.number6
dspace.entity.typePublication
relation.isAuthorOfPublication212bca41-fecf-4d89-8de8-7ad5dcd5a0e0
relation.isAuthorOfPublicatione128b2ef-57f6-4263-91f3-58fdfc288c15
relation.isAuthorOfPublication435618a1-16ee-48d4-b8c9-4ce0d333b134
relation.isAuthorOfPublicationc552d3fa-f581-450e-aa53-d1382e0cd6ba
relation.isAuthorOfPublication.latestForDiscovery212bca41-fecf-4d89-8de8-7ad5dcd5a0e0
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