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Título:
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The Aguablanca Ni–Cu–PGE deposit, Southwestern Iberia:Magmatic ore-forming processes and retrograde evolution
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Autores:
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Ortega Menor, Lorena ;
Lunar Hernández, Rosario ;
García Palomero, F. ;
Moreno, Teresa
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Tipo de documento:
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texto impreso
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Editorial:
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Mineralogical Association of Canada, 2004
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/restrictedAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Geología
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Tipo = Artículo
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Resumen:
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The Aguablanca Ni–Cu–PGE ore deposit, in southwestern Iberia, has a magmatic origin, and has been reworked by later skarn-related hydrothermal activity. Base-metal sulfides are associated with igneous cumulates displaying subvertical layering consisting of gabbro, norite and dolerite, with fragments of pyroxenite and peridotite. These rocks show a pervasive retrograde alteration with an early overprint of actinolite ± chlorite ± epidote ± albite ± serpentine, followed by later growth of talc ± chlorite ± carbonates. The base-metal sulfides are concentrated in two subvertical bodies and consist of pyrrhotite, pentlandite and chalcopyrite, overprinted by fluid-deposited pyrite. The following types of mineralization have been recognized: 1) disseminated ore (1
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En línea:
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https://eprints.ucm.es/45263/1/08%202004-Ortega%20et%20al.%20CanMin%20-%20AB%20inicial.pdf
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