127 documents found, page 1 of 13
Unconventional Three-Dimensional Active Seismic Tomography Applied in the Lousa...
Hamak, Ines; Teixeira, Pedro; Borges, José; Koulakov, Ivan; Oliveira, Rui; Caldeira, Bento; Bezzeghoud, Mourad; Matos, João X.; Andringa, SofiaThe Lousal Mine (Iberian Pyrite Belt, Portugal) was operated from 1900 to 1988 for the extraction of massive sulphides and was later rehabilitated as a science museum. It was selected as a test site for underground muon tomography applied to geophysical surveys, as part of the LouMu project. This study focuses on seismic tomography to analyse the sub- surface above the mine gallery, primarily surveyed by a muog...
Unconventional Three-Dimensional Active Seismic Tomography Applied in the Lousa...
Hamak, Ines; Teixeira, Pedro; Borges, José Fernando; Koulakov, Ivan; Oliveira, Rui Jorge; Caldeira, Bento; Bezzeghoud, Mourad; Xavier Matos, João ManuelABSTRACT: The Lousal Mine (Iberian Pyrite Belt, Portugal) was operated from 1900 to 1988 for the extraction of massive sulphides and was later rehabilitated as a science museum. It was selected as a test site for underground muon tomography applied to geophysical surveys, as part of the LouMu project. This study focuses on seismic tomography to analyse the subsurface above the mine gallery, primarily surveyed b...
Muography Applied in Underground Geological Surveys: Ongoing Work at the Lousal...
Teixeira, Pedro; Blanco, Alberto; Caldeira, Bento; Tomé, Bernardo; Alexandre, Isabel; Matos, João; Silva, Jorge; Borges, José; Cazon, LorenzoThe LouMu Project is an ongoing collaboration between the Laboratory of Instrumentation and Experimental Particle Physics (LIP), the Institute of Earth Sciences—University of Évora and the Lousal Ciência Viva Center which is evaluating the muography potential in the Lousal Mine, with the general aim to create the conditions to use muography as a novel method for geophysical surveys in Portugal. The National Lab...
Livro de Resumos da 11ª Assembleia Luso Espanhola de Geodesia e Geofísica
Caldeira, Bento; Bortoli, Daniele; Duarte, Ediclê; Buforn, Elisa; Carrilho, Fernando; Couto, Flávio; Ribeiro, Helena; Sobrino, José AntónioLivro de Resumos da 11ª Assembleia Luso Espanhola de Geodesia e Geofísica
Book of Abstracts: 2nd International Workshop on Mathematics and Physical Sciences
Anjos, António; Minhós, Feliz; Carapau, Fernando; Bezzeghoud, Mourad; Correia, Paulo; Oliveira, Rui Jorge; Abreu, SalvadorBook of Abstracts: 2nd International Workshop on Mathematics and Physical Sciences
Local Seismic Tomography Reveals the Crustal Structure Beneath Arraiolos (Centr...
Hamak, Ines; Wachilala, Piedade; Borges, José; Koulakov, Ivan; Araújo, Alexandre; Bezzeghoud, MouradAn ML 4.9 earthquake occurred in Arraiolos, central Alentejo, on the 15 January 2018. As the mainshock was recorded as the highest magnitude in the region, a thorough investigation of the cause of this seismicity was carried out. In this study, local seismic tomography was conducted for the first time to demonstrate the importance of a uniform spatial distribution of earthquakes for obtaining accurate crustal i...
Livro de Resumos Estendidos da 11a Assembleia Luso-Espanhola de Geodesia e Geof...
Oliveira, Rui; Caldeira, Bento; Bortoli, Daniele; Guerrero-Rascado, Juan; Costa, Maria João; Bezzeghoud, Mourad; Salgueiro, VandaA publicação do Livro de Resumos Estendidos da 11a Assembleia Luso-Espanhola de Geodesia e Geofísica (ALEGG 2024) que decorreu na Universidade de Évora, de 24 a 27 de junho de 2024, reuniu investigadores de referência para a partilha de resultados nas mais variadas disciplinas. A ALEGG 2024 representou um momento crucial para a comunidade científica luso-espanhola, promovendo a partilha de conhecimentos, a disc...
Seismic Sequence Analysis of the Arraiolos Zone, South Portugal, and Its Seismo...
Wachilala, Piedade; Borges, José; Caldeira, Bento; Bezzeghoud, MouradThe Arraiolos Zone has been affected by the persistent superficial seismicity (focal depth < 20 km) of a weak magnitude (M < 4) and some events of a higher magnitude (M > 4), and is mainly located around the Aldeia da Serra village. On 15 January 2018, at 11:51 UTC, the largest instrumental earthquake recorded in that area occurred, with a magnitude (ML 4.9) located northeast of Arraiolos, near the Aldeia da Se...
Source parameters of the moderate‐sized (ML 4.9) 2018 Arraiolos, Portugal earth...
Wachilala, Piedade; Borges, José; Caldeira, Bento; Bezzeghoud, MouradThe Arraiolos zone is one of the most seismically active intraplate regions in mainland Portugal and is characterized by low- to moder- ate-magnitude events. However, there is a need to analyse the characteristics of the seismic source parameters in this zone, which is crucial for under- standing the origin of the zone’s seismicity and gaining insights into the stresses involved in the rupture processes of seis...
FONTE DO SISMO DE MARROCOS DE 2023 (MW6.8) INFERIDA A PARTIR DO CRUZAMENTO DE D...
Caldeira, Bento; Bezzeghoud, Mourad; Oliveira, Rui; Borges, José; Hamak, Ines; Buforn, ElisaOn September 8, 2023, at 22:11 UTC, an earthquake of magnitude 6.8 with epicenter near the village of Talat N'Yaaqoub, province of Al Haouz (Morocco), High Atlas region, shook violently the entire epicentral zone within a radius of more of 70km, seriously affecting the structures of more than 78,000 buildings and causing approximately 5,600 injuries and around 3,000 fatalities. This work presents part of the de...