Encontrados 11 documentos, a visualizar página 1 de 2
Biological assemblages of three new mud volcanoes along deep-reaching transform...
Cunha, M.; Hilário, Ana; Vieira, R.P.; Adão, H.; Aranda, Silva A.; Ravara, A.; Terrinha, P.; Hensen, C.Previous work on the Gulf of Cadiz (S Iberian Margin) has revealed several mud volcanoes sitting on the accretionary wedge and aligned along west-east trending transform faults. The source of fluids in these mud volcanoes is several kilometres below the seafloor and their geochemical composition indicates that they are affected, in different degrees, by oceanic crust alteration, implying that there is active fl...
Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Se...
Carvalho, J.; Pinto, C. C.; Rabeh, T; Borges, J. F.; Dias, R.; Costa, M.; Duarte, H.; Terrinha, P.; Caldeira, B.The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown. Our goal is to shed some light into the seismogenic sources in the area using seismic reflection and geological data. In areas with no seismic coverage, potential-field data interpretation was carried out...
Compilation of parameterized seismogenic sources in Iberia for the SHARE Europe...
Nemser, E.S.; García-Mayordomo, J.; Cabral, J.; Fonseca, J.; Martínez-Díaz, J.J.; Alfaro García, P.; Àlvarez Gómez, J.A.; Atakan, K.Abstract: SHARE (Seismic Hazard Harmonization in Europe) is an EC-funded project (FP7) that aims to evaluate European seismic hazards using an integrated, standardized approach. In the context of SHARE, we are compiling a fully-parameterized active fault database for Iberia and the nearby offshore region. The principal goal of this initiative is for fault sources in the Iberian region to be represented in SHARE...
COMPILATION OF ACTIVE FAULT DATA IN PORTUGAL FOR USE IN SEISMIC HAZARD ANALYSIS
Nemser, E.S.; Cabral, J.; Terrinha, P.; Vilanova, S.; Besana-Ostman, G.M.; Bezzeghoud, M.; Borges, J.F.; Brum da Silveira, A.; Carvalho, J.; Dias, R.P.To estimate where future earthquakes are likely to occur, it is essential to combine information about past earthquakes with knowledge about the location and seismogenic properties of active faults. For this reason, robust probabilistic seismic hazard analysis (PSHA) integrates seismicity and active fault data. Existing seismic hazard assessments for Portugal rely exclusively on seismicity data and do not incor...
The national inventory of geosites in Portugal
Brilha, J. B.; Alcalá, A.; Almeida, A.; Araújo, A.; Azerêdo, Ana; Azevedo, M. R.; Barriga, Fernando; Silveira, A. Brum; Cabral, J.; Cachão, M.During the last three years geoscientists of various institutions have developed a project aiming the setup of a geoconservation strategy in Portugal (Brilha, 2009). One of the main goals of the project was the establishment of an inventory of the most important Portuguese geosites, under the scientific point of view. In a near future, national authorities will consider this inventory as a technical support for...
Arrábida e Sintra
Kullberg, J. C.; Terrinha, P.; Pais, João; Reis, R. P.; Legoinha, P.A Cadeia da Arrábida é a estrutura morfotectónica orogénica, constituída por empilhamentos de cavalgamentos, mais ocidental de todo o orógeno alpino da área emersa da placa litosférica Eurásia. Atentando apenas nos relevos orogénicos alpinos da área emersa de Portugal, as suas estruturas e morfologia tornam-na no mais elegante exemplo de tectónica orogénica alpina em Portugal. A Serra de Sintra constitui um rel...
A Bacia do Algarve: estratigrafia, paleogeografia e tectónica
Terrinha, P.; Rocha, R.; Rey, J.; Cachão, M.; Moura, Delminda; Roque, C.; Martins, L.; Valadares, V.; Cabral, J.; Azevedo, M. R.; Barbero, L.A “Bacia do Algarve” corresponde, segundo a literatura científica tradicional, aos terrenos mesocenozóicos que orlam o Sul de Portugal, desde o Cabo de São Vicente ao rio Guadiana (~140km), penetrando irregularmente para o interior entre 3 km a 25 km, sobre terrenos de idade carbónica da Zona Sul Portuguesa. O hiato, de aproximadamente 70 milhões de anos, materializado pela discordância angular entre as rochas ...
Definition of the Portuguese frameworks with international relevance as an inpu...
Bilha, J.; Andrade, C.; Azerêdo, Ana C.; Barriga, F.; Cachão, M.; Cunha, P. P.; Crispim, J. A.; Dantas, P.; Duarte, L. V.; Freitas, M.C.; Granja, M. H.This work constitutes the first contribution for the systematisation of the geological heritage knowledge in Portugal, following the international recomendations for the characterisation of geological heritage (IUGS, ProGEO). The application of the ProGEO methodology has resulted on the creation of fourteen frameworks with international relevance, established by consensus among the Portuguese geological communi...
Definition of the Portuguese frameworks with international relevance as an inpu...
Brilha, J.; Cunha, Pedro P.; Azerêdo, A.; Barriga, F. J. A. S.; Azeredo, A.; Cachão, M.; Couto, H.; Andrade, C.; Crispim, J. A.; Dantas, P.This work constitutes the first contribution for the systematisation of the geological heritage knowledge in Portugal, following the international recomendations for the characterisation of geological heritage (IUGS, ProGEO). The application of the ProGEO methodology has resulted on the creation of fourteen frameworks with international relevance, established by consensus among the Portuguese geological communi...
Definition of the Portuguese frameworks with international relevance as an inpu...
Brilha, J. B.; Andrade, César; Azerêdo, Ana; Barriga, Fernando; Cachão, M.; Couto, Helena; Cunha, P. P.; Crispim, J. A.; Dantas, Pedro; Duarte, L. V.This work constitutes the first contribution for the systematisation of the geological heritage knowledge in Portugal, following the international recomendations for the characterisation of geological heritage (IUGS, ProGEO). The application of the ProGEO methodology has resulted on the creation of fourteen frameworks with international relevance, established by consensus among the Portuguese geological communi...
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