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Deformação tectónica no bordo ocidental da bacia de Rio Maior : a falha do Cidral

2023-07Conference object Open access
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dc.contributor.authorRessurreição, Ricardo
dc.contributor.authorDias, Ruben Pereira
dc.contributor.authorCabral, João
dc.contributor.authorCharifo, G.
dc.date.accessioned2023-08-02T09:27:04Z
dc.date.available2023-08-02T09:27:04Z
dc.date.issued2023-07
dc.descriptionResumo alargadopt_PT
dc.description.abstractSUMMARY: The Rio Maior basin is a NNW-SSE elongated tectonic basin, controlled by main faults with the same orientation. The basin was filled with sediments during the Pliocene, over Miocene deposits. Borehole data show a depocenter located near its eastern margin with the Pliocene sediments forming a dissymmetrical synform controlled by the NNW-SSE Cidral border fault. The sedimentation culminates in Pleistocene conglomeratic sandstones, apparently not deformed. During recent field work in a sand exploration quarry located in the SE extremity of the basin, a N-S fault affecting the Miocene and Pliocene was identified along ca. 400 m. Striated slickensides in the Miocene deposits indicate a predominant normal dip-slip component. This was interpreted as a prolongation or major ramification of the Cidral fault. Considering the proximity of extruded Jurassic evaporitic sediments at Fonte da Bica diapir, the extensional deformation in the Rio Maior area during the Pliocene is probably related with tectonic diapirism.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRessurreição, Ricardo; Dias, Ruben Pereira; Cabral, João; Charifo, G. (2023) - Deformação tectónica no bordo ocidental da bacia de Rio Maior : a falha do Cidral. In: Lopes, F. C., Dinis, P. A., Duarte, L. V. e Cunha, P. P. (Coords.). XI Congresso Nacional de Geologia: Geociências e Desafios Globais. Livro de Resumos. Coimbra, 16- 20 julho de 2023, Departamento de Ciências da Terra da Universidade de Coimbra (eds.), p. 249-250. ISBN: 978-989-98914-8-7pt_PT
dc.identifier.isbn978-989-98914-8-7
dc.identifier.urihttp://hdl.handle.net/10400.9/4097
dc.language.isoporpt_PT
dc.publisherDepartamento de Ciências da Terra da Universidade de Coimbrapt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBacia de Rio Maiorpt_PT
dc.subjectPliocénicopt_PT
dc.subjectTectónicapt_PT
dc.subjectDiapirismopt_PT
dc.subjectRio Maior basinpt_PT
dc.subjectPliocenept_PT
dc.subjectTectonicspt_PT
dc.subjectDiapirismpt_PT
dc.titleDeformação tectónica no bordo ocidental da bacia de Rio Maior : a falha do Cidralpt_PT
dc.title.alternativeTectonic deformation on the Rio Maior basin western margin : the Cidral faultpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbra, Portugalpt_PT
oaire.citation.endPage250pt_PT
oaire.citation.startPage249pt_PT
oaire.citation.titleXI Congresso Nacional de Geologia: Geociências e Desafios Globaispt_PT
person.familyNameRessurreição
person.familyNameDias
person.givenNameRicardo
person.givenNameRuben
person.identifier.ciencia-id8C11-1508-A8A2
person.identifier.ciencia-id0F10-032A-E243
person.identifier.orcid0000-0003-3201-3650
person.identifier.orcid0000-0003-1654-809X
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationb9e0966a-df6a-419f-a9eb-ea9e213c5e79
relation.isAuthorOfPublication0cc38d72-60bf-477b-abde-c7d9cb375d67
relation.isAuthorOfPublication.latestForDiscoveryb9e0966a-df6a-419f-a9eb-ea9e213c5e79

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