117 documents found, page 1 of 12
Natural Hydrogen Prospectivity in Portugal: A first approach
Portillo, Juan C. C.; Ferreira, Pedro Tavares; Sampaio, José; Batista, Maria Joao; Represas, Patricia; Ramalho, Elsa; Machado, Susana; Carvalho, JoãoABSTRACT: This works presents the first maps of the prospectivity of natural hydrogen in continental Portugal and the methodological approach undertaken. The methodology used in this study follows the Chance of Sufficiency (COS) approach, which is also sometimes referred as the Chance of Success in exploration geoscience. It is a probabilistic estimate of whether a geological prospect contains a resource (e.g.,...
Insights into rare earth elements and other critical raw materials from Castelo...
Salgueiro, Rute; Silva, Teresa; Martín-Méndez, I.; de Oliveira, Daniel Pipa Soares; Batista, Maria Joao; Inverno, CarlosABSTRACT: Actual and future demands for critical raw materials and strategic raw materials (CRM/SRM) justify the global search for their potential sources and the exploration approaches to reach them. This study discloses the characterization of rare earth elements (REE) and other CRM-bearing alluvial heavy minerals samples sourced from the late- to post-tectonic Variscan Castelo Branco Massif (Portugal). It al...
The UTE-PLANAGEO Project (National Geology Plan of Angola). Objectives, methods...
Garcia-Lobon, Jose Luis; Merino-Martinez, Enrique; Fernández, J.; Carvalho, João; Batista, Maria Joao; Escuder, Javier; Lisboa, JoseABSTRACT: The National Geology Plan of Angola (PLANAGEO) has been one of the most important Angolan infrastructure projects throughout the past twenty years. The objectives of PLANAGEO were: (a) to enhance Angola's geological and mineral resources knowledge; (b) to foster diversification of the national economy; and, (c) to attract foreign investment and promote the country development. The project integrated r...
Áreas potenciais de Portugal para recursos minerais do domínio público
Carvalho, Jorge; Filipe, Augusto; Lisboa, Jose; Xavier Matos, João Manuel; Batista, Maria Joao; Salgueiro, Rute; de Oliveira, Daniel Pipa SoaresRESUMO: O ordenamento do território é decisivo no processo de garantir o acesso aos recursos minerais. Durante os trabalhos para identificar as ações necessárias para a preparação da Estratégia Nacional para os Recursos Geológicos foi produzido um mapa de áreas potenciais em recursos minerais de Portugal. Constitui um ponto de partida para a implementação de uma metodologia vocacionada para a delimitação de áre...
El Plan Nacional de Geología de Angola (PLANAGEO) [Resumo]
García-Lobón, J. L.; Merino-Martínez, E.; Rodrigues, José Feliciano; Fernández, J.; Viruete, Javier Escuder; Pereira, E.; Carvalho, JoãoRESUMEN: El Plan Nacional de Geología de Angola (PLANAGEO) ha sido uno de los proyectos geotemáticos internacionales más importantes de las últimas décadas. El proyecto fue lanzado por Gobierno de la República de Angola e implementado por el Instituto Geológico de Angola (IGEO), bajo la supervisión del Ministerio de Recursos Minerales, Petróleos y Gas (MIREMPET). Los principales objetivos de PLANAGEO fueron: a)...
Levelling geochemical datasets as a tool to overcome boundary features in data ...
Batista, Maria Joao; de Oliveira, Daniel Pipa Soares; Salgueiro, Rute; Inverno, CarlosABSTRACT: The existence of a large number of chemical analyses resulting from decades of geochemical exploration campaigns, yields huge numbers of analytical results produced with different analytical methods, sampling protocols and sampling means. Therefore, it is necessary to level these analytical results to make them comparable and thus take advantage of the potential of geochemical information from contigu...
Mapas de potencial mineral en el sur de Angola: el primer enfoque de un mapa de...
Batista, Maria Joao; Martín-Méndez, I.; Merino-Martínez, E.; Prazeres, Cátia; Cuervo, I.; Manuel, José; de Oliveira, Daniel Pipa SoaresRESUMEN: Los mapas de recursos minerales a escala 1:50.000 fueron realizados en la última fase del Proyecto PLANAGEO con el objetivo de evaluar el potencial mineral de la región sur de Angola. Los objetivos elegidos fueron, entre otros, las zonas que contienen Au-Fe en las áreas de Jamba-Cassinga-Tchamutete, Chipindo y Cuima-Samboto. Los mapas integraron mapas geológicos, datos magnéticos y radiométricos aéreos...
Unlocking the Secondary Critical Raw Material Potential of Historical Mine Site...
de Oliveira, Daniel Pipa Soares; Gonçalves, Pedro; Morais, Igor; Silva, Teresa; Matos, João Xavier; Albardeiro, Luís; Filipe, AugustoABSTRACT: A steady supply of mineral raw materials is vital for the transition to a low-carbon, circular economy. The number of active mines in Europe has severely declined over the last century and half, giving rise to many abandoned mining waste sites and corresponding geological heritage. Also, the rise in minerals demand for large-scale deployment of renewable energy requires the continued and steady availa...
El Mapa Metalogenético preliminar del Sur de Angola a escala 1:1.000.000
Merino-Martínez, E.; Batista, Maria Joao; Martín-Méndez, I.; de Oliveira, Daniel Pipa Soares; Feria, María Carmen; Fortes, Carla; Prazeres, CátiaRESUMEN: La República de Angola dispone de un amplio e interesante catálogo de mineralizaciones, según sus diversos entornos geológicos y geotectónicos, que cubren edades desde el arcaico superior hasta épocas más recientes. Esto hace de Angola una región de gran interés por su potencial en yacimientos minerales. Prueba de ello es el fruto de la exploración e importante actividad minera desarrollada a lo largo ...
The National Geological Plan of Angola (PLANAGEO) [Resumo]
García-Lobón, J. L.; Merino-Martínez, E.; Suárez, Jorge Fernández; Viruete, Javier Escuder; Batista, Maria Joao; Carvalho, João; Ramalho, ElsaABSTRACT: The National Geological Plan of Angola (PLANAGEO) has been one of the most significant african geothematic projects of recent decades. The Government of the Republic of Angola launched the project through Presidential Resolution 52/09. The project was implemented by the Geological Survey of Angola (IGEO) under the supervision of the Angolan Ministry of Mineral Resources, Petroleum and Gas (MIREMPET). ...