30 documents found, page 1 of 3
Contact metamorphism and dolomitization overprint on Cambrian carbonates from t...
Roseiro, José; Moreira, Noel; Andrade, Laura; Nogueira, Pedro; de Oliveira, Daniel Pipa Soares; Eguiluz, Luis; Mirao, Jose; Moita, PatríciaABSTRACT: he Cambrian Series 2 Carbonate Formation from the Alter do Chão Elvas-Cumbres Mayores unit (Ossa-Morena Zone, SW Iberian Massif) is composed of regionally metamorphosed marbles and marlstones that underwent chlorite zone metamorphism and preserve the primaeval limestone 87Sr/86Sr ratios (0.7083–0.7088). These are consistent with the established Lower Cambrian seawater curve, and therefore used for age...
Contact metamorphism and dolomitization overprint on Cambrian carbonates from t...
Roseiro, José; Moreira, Noel; Andrade, Laura; Nogueira, Pedro; de Oliveira, Daniel Pipa Soares; Eguiluz, Luis; Mirao, Jose; Moita, PatríciaABSTRACT: he Cambrian Series 2 Carbonate Formation from the Alter do Chão Elvas-Cumbres Mayores unit (Ossa-Morena Zone, SW Iberian Massif) is composed of regionally metamorphosed marbles and marlstones that underwent chlorite zone metamorphism and preserve the primaeval limestone 87Sr/86Sr ratios (0.7083–0.7088). These are consistent with the established Lower Cambrian seawater curve, and therefore used for age...
Stress relacionado com a infertilidade e qualidade de vida: Qual o papel do evi...
Pedro, J.; Santos, Susana; Barbosa, C.A infertilidade é uma condição médica com forte impacto na vida dos indivíduos, nomeadamente impacto psicossocial. A literatura mostra que é vivenciada como uma experiência indutora de stress pela maioria das pessoas. Níveis mais elevados de stress relacionado com a infertilidade têm sido associados a níveis mais baixos de qualidade de vida. [...]
Mineralogical and chemical changes induced by experiments of interaction betwee...
Moita, P,; Berrezueta, E.; Abdoulghafour, H.; Beltrame, M.; Mirão, J.; Ribeiro, C.; Barrulas, P.; Pedro, J.; Carneiro, J.The focus of this research is a qualitative study of mineralogical and chemical changes in plutonic mafic rock samples after exposure to a CO2-rich brine, under supercritical conditions (SC), to clarify the behavior of brine and rock in the initial stages of mineral carbonation. The studied rock consists of a gabbro-anorthosite from the Odivelas massif, in southern Portugal. The sample was exposed to a SC CO2-r...
Insights about the Sines massif: a reinterpretation of geophysical data to the ...
Marques, F.; Pedro, J.; Araújo, A.; Moita, P.; Carneiro, J.; Sousa, P.; Carvalho, J.; Correia, A.The InCarbon project aims to evaluate the potential for storage of captured CO2 using in-situ mineral carbonation in mafic and ultramafic plutonic rocks in Alentejo, Portugal. The Sines massif appears to be the most promising massif for mineral carbonation and its geochemistry, petrography, mineralogy, volume and extension are characterized. Its offshore volume and extension are evaluated through reinterpretati...
Insights about the Sines massif: a reinterpretation of geophysical data to the ...
Marques, Fábio; Pedro, J.; Araujo, A.; Moita, Patrícia; Carneiro, Júlio; Sousa, Pedro; Carvalho, João; Correia, AntonioABSTRACT: The InCarbon project aims to evaluate the potential for storage of captured CO2 using in-situ mineral carbonation in mafic and ultramafic plutonic rocks in Alentejo, Portugal. The Sines massif appears to be the most promising massif for mineral carbonation and its geochemistry, petrography, mineralogy, volume and extension are characterized. Its offshore volume and extension are evaluated through rein...
Experiments on mineral carbonation of CO2 in gabbro’s from the Sines massif– pr...
Moita, P.; Berrezueta, E.; Pedro, J.; Miguel, C.; Beltrame, M.; Galacho, Cristina; Barrulas, Pedro; Mirão, J.; Carneiro, J.Portugal has committed to achieve carbon neutrality by 2050, but the current profile of emissions from the industrial sector requires that CO2 capture and storage technologies are deployed to accomplish that target. Amongst those technologies, mineral carbonation, i.e. the ability to precipitate carbonates by reacting the main cations present in silicates in mafic rocks (e.g. Ca2+, Fe2+) with CO2, turns these r...
Site screening for in situ mineral carbonation options in southern Portugal.
Carneiro, J.; Araújo, A.; Moita, P.; Pedro, J.; Sousa, P.; Beltrame, M.; Berrezueta, E.; Chambel, A.; Correia, A.; Galacho, Cristina; Marques, L.F.The Sines industrial area is the largest CO2 emitting cluster in Portugal, with a coal power plant, a refinery and petrochemical facilities that can be responsible for almost a third of the national emissions from stationary sources. This cluster is seen as an early opportunity to deploy CO2 Capture and Storage (CCS) in Portugal, but the nearby offshore sedimentary formations do not provide economic conditions ...
Até onde irá o Terreno Finisterra? Proposta de correlação com os “Terrenos” var...
Moreira, Noel; Dias, R.; Ribeiro, A.; Romão, José; Pedro, J.; Noronha, FernandoResumo: O Maciço Ibérico foi subdividido num conjunto de terrenos tectono-estratigráficos com características próprias, entre os quais os Terrenos Finisterra (TF) e Ibérico (TI). O TF contacta com TI, nomeadamente com a Zonas Centro Ibérica e Ossa-Morena, através de uma zona de cisalhamento, a Zona de Cisalhamento Porto-Tomar-Ferreira do Alentejo. O TF apresenta características que contrastam com as que especia...
The Ossa-Morena marbles used in the Classical Antiquity: review of their petrog...
Moreira, N.; Pedro, J.; Lopes, L.; Carneiro, A.; Mourinha, N.; Araújo, A.; Santos, J. F.The use of marbles during the Classical Antiquity, namely in the Roman Period, was a common practice, being extended during the 1st century. During this historical period, Hispania (Iberian Peninsula) was not an exception and there are several places where marbles were exploited with ornamental or architectonic purposes. In places like the Estremoz Anticlinal, Viana do Alentejo region, Trigaches-São Brissos, Al...