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Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
(The Clay Science Society of Japan, 2006-12)
Chemical bulk analyses of intermediate alunite-natroalunite minerals indicate anomalous high contentsof REE, Sr, Ba, Ca and P. Alunite occurs as veinlets or nodules cross-cutting hydrothermal claydeposits, containing ...
Chemical and textural relations of britholite- and apatite-group minerals from hydrothermal REE mineralization at the Rodeo de los Molles deposit, Central Argentina
(Mineralogical Society of America, 2019-12)
Britholite group minerals (REE,Ca)5[(Si,P)O4]3(OH,F) are rather widespread rare-earth minerals in alkaline rocks and their associated metasomatic zones, where they usually form tiny accessory phases. In the REE deposit ...
Hydrothermal rare earth elements mineralization in the Barra do Itapirapua carbonatite, southern Brazil: behaviour of selected trace elements and stable isotopes (C, O)
(Elsevier B.V., 1999-03-01)
The Bura do Itapira pua carbonatite is located in southern Brazil and belongs to the Cretaceous Ponta Grossa alkaline-carbonatitic province related to the opening of the South Atlantic. The carbonatite complex is emplaced ...
Hydrothermal rare earth elements mineralization in the Barra do Itapirapua carbonatite, southern Brazil: behaviour of selected trace elements and stable isotopes (C, O)
(Elsevier B.V., 1999-03-01)
The Bura do Itapira pua carbonatite is located in southern Brazil and belongs to the Cretaceous Ponta Grossa alkaline-carbonatitic province related to the opening of the South Atlantic. The carbonatite complex is emplaced ...
Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
(Continental Shelf Research, 2009)
The abundance and distribution of rare earth elements (REE) and their signatures in the Vigo Ria were studied from 50 samples of surface sediments and related to the geological formation in its watershed. The total amount ...
Bioreductive Dissolution as a Pretreatment for Recalcitrant Rare-Earth Phosphate Minerals Associated with Lateritic Ores
(Facultad de Ingeniería y Tecnología, 2019)
Recent research has demonstrated the applicability of a biotechnological approach for extracting base metals using acidophilic bacteria that catalyze the reductive dissolution of ferric iron oxides from oxidized ores, using ...
Carbonate REE plus Y signatures from the restricted early marine phase of South Atlantic Ocean (late Aptian - Albian): The influence of early anoxic diagenesis on shale-normalized REE plus Y patterns of ancient carbonate rocks
(Elsevier B.V., 2018-07-01)
Rare earth elements plus yttrium have been extensively applied in paleoenvironmental studies of ancient carbonate successions due to their fractionation in the marine environment. However, in modem marine anoxic environments, ...
Geochemistry of detrital minerals in provenance studies: a reviewGeoquímica de Minerais Detríticos em Estudos de Proveniência: Uma Revisão
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2005)