 | Gonçalves, , Melgarejo, , Alfonso, , Amores, , Paniagua, , Neto, , Morais, , Camprubí, (2019) The Distribution of Rare Metals in the LCT Pegmatites from the Giraúl Field, Angola. Minerals, 9 (10) 580 doi:10.3390/min9100580 | Journal (article/letter/editorial) | | Distribution of Rare Metals in the LCT Pegmatites from the Giraúl Field, Angola Antonio Olimpio Gonçalves 1 ,...de Fevreiro 71, Caixa Postal 815, Luanda 2131, Angola; tonygoncalves72@hotmail.com (A.O.G.); anbuneto@hotmail...Abstract: The Giraúl granitic pegmatite field in Angola is composed of five pegmatite types, the most evolved...belong to the beryl-columbite, beryl-columbite-phosphate and spodumene types. Pegmatites are concentrically...the most evolved pegmatites have well-developed replacement units. These pegmatites are rich in Nb-Ta |  | Van Lichtervelde, Marieke, Grand’Homme, Alexis, de Saint-Blanquat, Michel, Olivier, Philippe, Gerdes, Axel, Paquette, Jean-Louis, Melgarejo, Joan Carles, Druguet, Elena, Alfonso, Pura (2017) U-Pb geochronology on zircon and columbite-group minerals of the Cap de Creus pegmatites, NE Spain. Mineralogy and Petrology, 111 (1) 1-21 doi:10.1007/s00710-016-0455-1 | Journal (article/letter/editorial) | | geochronology on zircon and columbite-group minerals of the Cap de Creus pegmatites, NE Spain Marieke Van Lichtervelde...Wien 2016 Abstract The Cap de Creus granitic pegmatites in the eastern Catalan Pyrenees were dated using...zircon and columbite-group minerals (CGM), which are present in the different types of pegmatites from type...type I (K-feldspar pegmatites, least evolved) to type IV (albite pegmatites, most evolved) and therefore...dating the different pegmatitic pulses. In a type III pegmatite where zircon and CGM are co-genetically associated |  | | Journal (article/letter/editorial) | | FLUID EVOLUTION IN THE ZONED RARE-ELEMENT PEGMATITE FIELD AT CAP DE CREUS, CATALONIA, SPAIN Pura ALFONSO§...LCT granitic pegmatites, in Catalonia, northeastern Spain, belong to the beryl – columbite and beryl –...– columbite – phosphate subtypes and to the albite type. Fluid inclusions have been studied in all these...of pegmatite to determine the nature of the fluids involved in their formation. Beryl – columbite pegmatites...bodies are distinguished. Beryl – columbite – phosphate pegmatites, in addition, feature veins of albite |
|
