Abstract
This paper presents data on the distribution of REEs in sulfide minerals from ore-bearing gabbronorites in the Penikat layered intrusion and the results of their isotopic-geochronological Sm-Nd study. A new procedure for determination of REEs in the samples without preliminary separating and concentrating was tested on standard samples to be further used for analysis of sulfide minerals. Analysis of the spectra of the REE distribution in sulfides represents a distribution trend that is similar to the already studied bulk rock and allows deducing that the character of the REE distribution in sulfide minerals from gabbronorites in the Penikat layered intrusion was inherited from the parent magma melt; while the formation of sulfides took place at the stage of rock crystallization. The performed complex studies allow considering that sulfides can be successfully used together with the rock-forming minerals in Sm-Nd dating of ore-bearing mafite-ultramafite intrusions.
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