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Title: Geochronological data for the Pre-Mesozoic basement located west of the Porto-Tomar Fault: geodynamic implications
Authors: Bento dos Santos, Telmo
Chichorro, Martim
Carvalho, Diogo
Cachapuz, Pedro
Solá, Rita
Dantas, E.
Romão, José
Moreira, Noel
Dias da Silva, Ícaro
Clavijo, Emílio
Diez-Montes, Alejandro
Valverde, P.
Santos, R.V.
Linnemann, Ulf
Issue Date: Jul-2023
Publisher: Universidade de Coimbra
Citation: BENTO DOS SANTOS, T., CHICHORRO, M., CARVALHO, D., CACHAPUZ, P., SOLÁ, A.R., DANTAS, E., ROMÃO, J.M., MOREIRA, N., DIAS DA SILVA, I., CLAVIJO, E., DÍEZ-MONTES, A., VALVERDE, P., SANTOS, R.V., LINNEMANN U. (2023), Geochronological data for the Pre-Mesozoic basement located west of the Porto-Tomar Fault: geodynamic implications. XI Congresso Nacional de Geologia, Coimbra, 319-320.
Abstract: Geochronological data from the pre-Mesozoic basement of the Lusitanian Basement (West of the Porto-Tomar Fault) was obtained. Results show a predominant Cadomian/Pan-African and Eburnean inheritance/source, placing this sector as a peri-Gondwanan domain. However, two major differences can be seen in the data: samples with a clear absence in Mesoproterozoic ages vs. samples with a clear presence of these ages and Silurian-Devonian ages. If the former show clear signs of affinity with the Ossa-Morena Zone, the latter are similar to the South Portuguese Zone, being one of the samples, probably deposited in the Middle-Upper Devonian, interpreted as having a mixed source.
Type: lecture
Appears in Collections:ICT - Comunicações - Em Congressos Científicos Nacionais

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