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Características de los apatitos ubicados en los materiales metamórficos del Guadarrama Oriental (Madrid)

AuthorsGarcía-Guinea, Javier CSIC ORCID ; Medina Núñez, J. A.; García Giménez, R.; Leguey, Santiago
Issue Date1983
PublisherSociedad Española de Mineralogía
CitationBoletín de la Sociedad Española de Mineralogía 81: 139- 147 (1983)
AbstractThe apatites from several Guadarrama Oriental places have been located. They have the common factor of being found into discordant hydrothermal veins with host-structures, on tne hand in perthites and the other hand in segregation veins with aluminosilitaces. The results of the analyses are of two types: mangano-hydroxi-apatites and mangano-fluor-apatites. Both, having corrosion figures that show other deuteric processes after their formation, probably synchronically to the sphene deposition. ¿he flow of h¿dr¿th¿rm¿l fluids between the metapelitic and gneissic host-rocks , has produced phosphorous, titanium and manganese enrichment (because the abundant mangano-ilmenites detected by S.E.M. EDAX) and afterwards mangano-apatites and sphenes deposition during the several pulses of pneumatolithic-hydrothermal processes above mentioned.
Identifiersissn: 0210-6558
Appears in Collections:(MNCN) Artículos

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