PGE mineralization in the ransko gabbro-peridotite massif, bohemian massif, czech republic

摘要

Anomalous concentrations of platinum-group elements (PGE) have been detected in samples of low-grade magmatic Ni-Cu ores hosted in mafic and ultramafic rocks from the Ransko massif, Czech Republic. Geochemical data indicate that host rocks originated by closed-system fractional crystallization (with crystal accumulation) of a single parental magma that was derived by partial melting of a slightly depleted mantle source. Michenerite, froodite and speryllite were identified as teh principal PGE carriers.