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Mineralogical and geochemical characterization of surface soils and waste piles...
André da Silva Costa, Óscar Filipe; Reis, Amelia; Nogueira, Pedro; Simões, Pedro Pimenta; Kumoleha, A.ABSTRACT: The Preguiça and Vila Ruiva mines, located in the Ossa Morena Zone, Beja district, were explored for Fe-Zn-Pb in the early and mid-20th century. This study aims to reassess their mining potential by creating geochemical maps using modern exploration techniques combined with petrographic and mineralogical analyses. These maps resulted from field measurements obtained by portable X-ray fluorescence (XRF...
Mineralogical and geochemical characterization of surface soils and waste piles...
Costa, Óscar; Marinho Reis, A. Paula; Nogueira, Pedro; Simões, Pedro Pimenta; Kumoleha, A.The Preguiça and Vila Ruiva mines, located in the Ossa Morena Zone, Beja district, were explored for Fe-Zn-Pb in the early and mid-20th century. This study aims to reassess their mining potential by creating geochemical maps using modern exploration techniques combined with petrographic and mineralogical analyses. These maps resulted from field measurements obtained by portable X-ray fluorescence (XRF-P) equipm...
Mineralogical and Geochemical Constraints on Gold Enrichment in the Tchiquele E...
Kumoleha, António; Nogueira, Pedro; Simões, Pedro Pimenta; Marinho Reis, A. Paula[Excerpt] The Tchiquele gold deposit, located in southern Angola, re-mains underexplored despite its metallogenic potential within the sub-Saharan African context. This study aims to character-ize its mineralogical, geochemical, and paragenetic features through an integrative approach to refine its classification and evaluate its potential as a low- to intermediate-sulfidation epi-thermal system. Gold mineraliz...