46 documents found, page 1 of 5
Ediacaran and early-palaeozoic bimodal volcanism in the Ossa-Morena Zone, SW Ib...
Cachapuz, P.; Chichorro, M.; Bento dos Santos, T.; Carvalho, D.; Linnemann, U.; Zieger-Hofmann, M; Zieger, J.; Dantas, E.; Santos, R.V.; Moita, P.This study focuses on bimodal meta-volcanic rocks present in the Iberian Massif, in the ´Evora-Aracena Metamorphic Belt of the Ossa-Morena Zone (OMZ), near the boundary with the South Portuguese Zone. New petrological, geochemical (whole-rock and Sr–Nd isotopes) and LA-ICP-MS U–Pb zircon geochronology data are presented to track the magmatic evolution of both felsic and mafic rocks and their respective geodynam...
A multi-analytical characterization of 14th-18th century pottery from the Kongo...
Tsoupras, A.; Clist, B.; Lopes, M.C.; Moita, P.; Barrulas, P.; Jesus, M.; Domingos, S.; Bostoen, K.; Mirão, J.Pottery traditions refect the socioeconomic framework of past cultures, while the spatial distribution of pottery indicates exchange patterns and interaction processes. Material and earth sciences are employed here to determine raw material sourcing, selection and processing. The Kongo kingdom, internationally renowned since the late ffteenth century, is one of the most famous precolonial states in Central Afri...
Multi-analytical characterisation of blotting sands on documents from religious...
Nunes, M.; Wanzeller Martins, G.; Sarraguça, J.; Olival, F.; Moita, P.; G. Michaell, Scott; Claro, A.; Ferreira, T.Too little is known about areia de escrever, i.e., blotting sands, the intriguing particles sprinkled on freshly written scripts to accelerate the drying time of the ink. Blotting sands constitute a valuable but underestimated historical source. This work investigated the blotting sands used on the account books of the religious houses scattered across continental Portugal and Madeira Island (16th-19th centurie...
Litteras arena conspergere. Uncovering Blotting Sands on the Portuguese Inquisi...
Nunes, M.; Wanzeller Martins, G.; Sarraguça, J.; Olival, F.; Moita, P.; G. Michaell, Scott; Claro, A.; Ferreira, T.Historical and archival research focused on the Portuguese Inquisition documents (1551–1800) uncovered the use of arena known as blotting sands, a writing accessory used to hasten ink drying. We present in this work the first systematic study combining image analysis, SEM/EDS and μ-Raman techniques, statistics and chemometrics to characterise the blotting sands used by the Portuguese Inquisition and hypothesise...
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...
Variscan Metamorphism
Ribeiro, M. L.; Reche, J.; López-Carmona, A.; Aguilar, C.; Bento dos Santos, T.; Chichorro, M.; Dias da Silva, I.; Díez-Montes, A.; González-Clavijo, E.Various segments of Variscan crust are currently exposed in Iberia in response to successive tectonic events during the Variscan orogeny itself and subsequent extensional and compressive events during the Alpine cycle, all accompanied by surface erosion, and collectively contributing to their exhumation. We review the main characteristics and geodynamic contexts of the metamorphic complexes developed in Iberia ...
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 ...
Variscan Magmatism. In: Quesada C., Oliveira J. (eds) The Geology of Iberia: A ...
Ribeiro, M.L.; Castro, A.; Almeida, A.; Menéndez, L.G.; Jesus, A.; Lains, J.A.; Lopes, J.C.; Martins, M.H.B.; Mata, J.; Mateus, A.; Moita, P.This chapter aims to identify, characterize and locate the main facts/events related to orogenesis in the Iberian Peninsula. Its succession in space and time determines the geodynamic environment of the broader geological phenomenon corresponding to the Variscan cycle. In this sense, this section comprises two parts: I—The Iberian orogenic magmatism seen through a space-time approach of its westernmost region—f...
Variscan Magmatism
Ribeiro, M. L.; Castro, A.; Castro, A.; González Menéndez, L.; Jesus, A.; Lains, J. A.; Lopes, P.; Martins, H. C. B.; Mata, J.; Mateus, A.; Moita, P.This chapter aims to identify, characterize and locate the main facts/events related to orogenesis in the Iberian Peninsula. Its succession in space and time determines the geodynamic environment of the broader geological phenomenon corresponding to the Variscan cycle. In this sense, this section comprises two parts: I—The Iberian orogenic magmatism seen through a space-time approach of its westernmost region—f...