26 documents found, page 1 of 3
Occurrence of marine litter along abyssal areas of the Gloria Fracture Zone (NE...
Ramalho, S.; Ferreira, T.; Hensen, C.; Terrinha, P.; Schmidt, M.; Sroczynska, K.; Adão, H.Marine litter pollution is a recognized form of anthropogenic disturbance that affects widely the marine environment, particularly near the continental margins, although also present at abyssal and bathyal depths. This study reports the occurrence of marine litter distribution and abundance in four abyssal basins along the Gloria fracture zone in the NE Atlantic. Litter items occurrences were analysed using TV-...
Megafauna communities from abyssal sites along the Gloria Fracture Zone (NE Atl...
Ferreira, T.; Hensen, C.; Terrinha, P.; Schmidt, M.; Muller, T.; Sroczynska, K.; Ramalho, S.; Adão, H.Fracture zones are areas of poorly known abyssal landscapes and benthic faunal communities. During the R/V Meteor M162 cruise several imagery surveys were performed using a TV-CTD guided camera system along four main areas of the Gloria fault system, between the Terceira ridge and the Madeira Tore Rise. Based on these records, we were able to characterize - for the first time - the megafaunal composition, their...
Crustal structure across the São Miguel Island (Azores, North Atlantic) and tec...
Batista, L.; Hübscher, C.; Terrinha, P.; Matias, L.; Afilhado, Alexandra; Loureiro, A.; Weiß, B.The crustal and uppermost lithospheric mantle of the São Miguel Island in the Azores Plateau was investigated using one 160 km long refraction and wide angle refection seismic profle across the island and the Terceira Rift along with multichan nel seismic refection profles on the top of it. P-wave velocity model shows that São Miguel Island is made up of 5 crustal layers. The sedimentary sequence varies between...
Seismic characterization of fluid migration and Pockmarks formation in the Estr...
Duarte, D.; Magalhães, V.H.; Terrinha, P.; Ribeiro, C.; Pinheiro, L.M.; Benazzouz, O.; Jung-Hyun, K.: A field with more than 30 pockmarks was recently discovered in the Estremadura Spur outer shelf (Lourinhã Monocline). The processing of high-resolution seismic lines permitted the characterization of this pockmark field and of the seismic sequence of the Plio-Quaternary basin where they occur. Results show that this region has been affected by several episodes of fluid migration and fluid escape during the Pl...
Benthic nematodes assemblages of three new mud volcanoes along the SWIM deep-re...
Ramalho, S.P.; Ribeiro, C.; Hensen, C.; Nuzzo, M.; Terrinha, P.; Adão, H.During the RV METEOR M86/5 cruise (as part of the SWIMGLO project PTDC/MAR/100522/2008) three new mud volcanoes were discovered and characterized at ca. 4500m depths: Michael Ivanov, Abzu and Tiamat, located along the already described lithospheric SWIM1 fault in the transition between the accretionary prism and the Horseshoe Abyssal Plain (Gulf od Cadiz). The benthic nematode assemblages present in the sedimen...
FLUVIAL LIMESTONE TUFFS FROM THE S. PORTUGAL (LOULE-TAVIRA) AND N. MOROCCO (TET...
Ribeiro, C.; Terrinha, P.; Aboumaria, K; Zaghloul, M.N.; Guerreiro, P.; Cunha, L.; Abassi, A.Limestone tuff deposits precipitated in fluvial environments are widespread in the northern Morocco and the S Portugal. These deposits represent environmental conditions prone for the carbonate precipitation mainly in areas of Mesozoic limestone substratum with active water seepage from the aquifers. The mesoscopic and microscopic characteristics of tuff deposits from Tetouan (Morocco) and Loule and Tavira (Por...
Geomorphology, sedimentology and petrography of Quaternary travertines (Tetouan...
Abassi, A.; Ribeiro, C.; Terrinha, P.; Aboumaria, K.; Zaghloul, M.N.; El Talibi, H.; El Moussaoui, S.The continental carbonates, such as travertine, are among the sediments recording climate change manly during quaternary times. Their lithofacies and petrofacies are useful for reading related hydrologic, geomorphologic, climatic processes and depositional palaeoenvironments. Thus, the present work deal with analysis and interpretation of the main facies association of Tetouan city travertine cliffs and terrace...
Sedimentary evolution of Quaternary tufas and travertines (Tetouan-Northern Mor...
Guerreiro, P.; Abbassi, A.; Ribeiro, C.; Terrinha, P.; Aboumaria, K.; Zaghloul, M.N.The continental carbonates, such as travertine and tufa, are among the sediments recording climate change manly during Quaternary times. Their lithofacies and petrofacies are useful for understanding the related hydrologic, geomorphologic and climatic processes as well as the depositional palaeoenvironments. Thus, the present work deal with the analysis and interpretation of the main facies association of Tetou...
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...
The potential for CO2 geological storage in the Porto basin
Cardoso, F.; Cunha, T.; Terrinha, P.; Carneiro, J.; Ribeiro, C.The storage of CO2 is an up to date topic involving numerous governmental, academic and commercial institutions. COMET is a joint research project co-financed by the European Seventh Framework Programme that aims at identifying and assessing the most cost effective CO2 transport and storage infrastructure able to serve the West Mediterranean area, namely Portugal, Spain and Morocco. In this project a preliminar...