RM - Resumos em livros de actas
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- Petrografia de litologias ferro-manganesíferas associadas ao Complexo Vulcano-Sedimentar (CVS), Faixa Piritosa Ibérica, AljustrelPublication . Silva, R. J.; Morais, Igor; Gomes, ElsaSUMMARY: The Iberian Pyrite Belt (IPB) is one of the largest metallogenic provinces of Volcanogenic Massive Sulfide (VMS) deposits in the world. On top of the massive sulfide mineralizations, exhalite levels are usually formed by jasper, chert and carbonates, related to Fe-Mn-Ba mineralizations. The structure of Maralhas, at the Aljustrel VMS deposit, was studied and the following mineral phases were identified: magnetite, hematite, goethite, pyrolusite and psilomelane. Chemical analyses were performed to complement and validate the mineralogy identified by optical microscopy inspection.