122 documents found, page 1 of 13
Marine terrace staircases of western Iberia: Uplift rate patterns from rocky li...
Martins, António; Gouveia, Margarida; Cunha, Pedro; Cabral, João; Gomes, Alberto; Falguères, Christophe Falguères; Voinchet, Pierre; Stokes, MartinThe Western Iberian Peninsula is undergoing compressive tectonic reactivation, resulting in spatial and temporal variations of surface uplift. Uplift quantification can be undertaken in coastal settings using staircases of shore platforms developed onto rocky headlands. This study analyses two marine terrace staircases in central Portugal: Cape Raso - Abano beach and Cape Espichel. Geomorphic and stratigraphic ...
Soil Classification Maps for the Lower Tagus Valley Area, Portugal, Using Seism...
Carvalho, João; Dias, Ruben; Borges, José Fernando; Quental, Lídia; Caldeira, BentoABSTRACT: The Lower Tagus Valley (LTV) region has the highest population density in Portugal, with over 3.7 million people living in the region. It has been struck in the past by several historical earthquakes, which caused significant economic and human losses. For a proper seismic hazard evaluation, the area needs detailed V-s30 and soil classification maps. Previously available maps are based on proxies, or ...
Studying the water supply system of the Roman villa of Pisões (Beja, Portugal) ...
Carneiro, André; Oliveira, Rui Jorge; Trapero Fernandez, Pedro; Caldeira, Bento; Borges, José FernandoThe Roman villa of Pisões (Beja, Portugal) was part of the Lusitanian colony of Pax Iulia. This place stands out for the predominance of the water element in several structures of the villa, highlighting the balneum and the large natatio, one of the largest known in Roman Hispania. The records of the initial excavations that took place beginning in 1967 do not allow the establishment of clear functionalities of...
GEOLOGICAL CHARACTERIZATION OF CO2 STORAGE COMPLEXES INTEGRATING AUTOCORRELATIO...
Caeiro, Maria Helena; Vieira, João; Moreno, Beatriz; Pereira, Pedro; Caldeira, Bento; Ribeiro, Carlos; Borges, José; Canteli, Paula; Oliveira, RuiThe PilotSTRATEGY project investigates geological carbon dioxide (CO₂) storage in deep saline aquifers, focusing on the Monte Real site in Portugal. Due to limited well and seismic data, passive seismic methods were used for cost-effective and environmentally friendly subsurface characterization. The study involved recording ambient noise, analyzing it through autocorrelation, and comparing with existing seismi...
Using advanced geophysical data processing to improve low detection data in arc...
Oliveira, Rui Jorge; Caldeira, Bento; Borges, José Fernando; Bezzeghoud, MouradGeophysical data with noise issues are quite common, resulting in low detection conditions. This prevents the ground content from being evaluated to determine the existence of structures buried in the ground in an archaeological site. Standard processing on ground-penetrating radar and magnetic data does not effectively eliminate or mitigate this effect. The use of advanced and customized data processing is a v...
Studying the water supply system of the Roman villa of Pisões (Beja, Portugal) ...
Trapero, Pedro; Oliveira, Rui Jorge; Caldeira, Bento; Borges, José Fernando; Carneiro, AndréThe Roman villa of Pisões (Beja, Portugal), was part of the Lusitanian colony of Pax Iulia. This place stands out for the predominance of the water element in several structures of the villa, highlighting the balneum and the large natatio, one of the largest known in Roman Hispania. The records of the initial excavations that took place since 1967 do not allow the establishment of clear functionalities of the v...
Fusão de dados geofísicos
Oliveira, Rui Jorge; Caldeira, Bento; Borges, José Fernando; Bezzeghoud, MouradOs dados de georradar (GPR) e gradiente vertical magnético (MAG) nem sempre fornecem informações sobre a existência de estruturas enterradas mesmo que haja bastantes evidências à superfície. A falta de percetibilidade que por vezes se verifica em dados geofísicos é um problema conferido pelas condições físicas e químicas do meio analisado, que tem como consequência o aumento do ruído de fundo dos dados, ao níve...
Monitorização sísmica no contexto da crise sísmica de São Jorge – Açores - de m...
Borges, José Fernando; Oliveira, Rui Jorge; Caldeira, Bento; Hamak, Ines; Carrilho, Fernando; Bezzeghoud, Mourad; Alves, PauloNo dia 19 de Março de 2022, pelas 17h e 11 minutos desencadeou-se na Ilha de S. Jorge - Açores uma crise sísmica cuja frequência atingiu o máximo de 700 eventos/hora. Nos dias seguintes ao início da crise, o Instituto de Ciências da Terra – Universidade de Évora - e o Instituto Português do Mar e da Atmosfera (IPMA) procederam à instalação de um conjunto de estações sísmicas nas ilhas de S. Jorge, Pico e Faial,...
Avanços no projeto LouMu – Muografia para levantamentos geofísicos
Teixeira, Pedro; Blanco, Alberto; Caldeira, Bento; Tomé, Bernardo; Alexandre, Isabel; Matos, João; Silva, Jorge; Borges, José Fernando; Cazon, LorenzoO Projeto LouMu é uma colaboração em curso entre o Laboratório de Instrumentação e Física Experimental de Partículas, o Instituto de Ciências da Terra – Universidade de Évora e o Centro Ciência Viva do Lousal, contando ainda com o apoio do Laboratório Nacional de Energia e Geologia. O objetivo é explorar o potencial da técnica de muografia na Mina do Lousal, com a finalidade de criar as condições para a utiliza...
Geophysical data fusion of ground-penetrating radar and magnetic datasets
Oliveira, Rui Jorge; Caldeira, Bento; Borges, José Fernando; Bezzeghoud, MouradGeophysical data gathered in archaeological sites have a lack of perceptibility regarding buried structures, i.e., it is not possible to recognize useful information related to structures in the signal. This issue might be caused by soil conditions, which raise the signal to noise ratio and limit proper interpretation of the results. A beginning hypothesis was proposed to overcome this problem: low perceptibili...