RT Journal Article
T1 Mineralización de elementos del grupo del platino (EGP) en las cromititas de los macizos ultramáficos del Complejo de Cabo Ortegal
A1 Moreno, T.
A1 Lunar Hernández, María Del Rosario
A1 Prichard, H.
A1 Monterrubio, S.
A1 Ortega Menor, Lorena
AB Many different platinum-group minerals (PCM) have been observed in the chromitites of the Cabo Ortegal complex, one of five Paleozoic ultramafic bodies that crop out in the NW of the Iberian Peninsula. Chomitites are inhomogeneously distributed within the >1100 m-thick serpentinized ultramafic sequence, and can contain up to 13 ppm of total platinum-group elements. Six PCM assemblages are described in these samples including Pt-Pd-sulphides, Pt-Rh alloys, As-, Bi-, Sb- and Te-bearing PGM, PCM enclosed in chromite grains, Hg-, Pb- and Au-bearing PCM and Pt-Pd-bearing oxides. Whereas the PCM enclosed in chromite rims, mostly laurites, are interpreted as being of primary origin, most of the PCM occurring on chromite rims, or distributed within the serpentinized silicates, have complex alteration textures indicating a secondary origin.
PB Sociedad Geológica de España
SN 0213-683X
YR 1998
FD 1998
LK https://hdl.handle.net/20.500.14352/118680
UL https://hdl.handle.net/20.500.14352/118680
LA spa
NO Moreno, T. et al. (1998) «Mineralización de elementos del grupo del platino (EGP) en las cromititas de los macizos ultramáficos del Complejo de Cabo Ortegal», Geogaceta, 25, pp. 135-138.
NO Comisión Interministerial de Ciencia y Tecnológia (España)
DS Docta Complutense
RD 28 abr 2025