Verkhne-Uliglinskii

A series of stocks, up to 1.7 x 2.0 km, dykes and minor lens-like bodies of alkaline rocks are located over an area of 4.8 x 4.9 km and cut schists and marbles. Nepheline syenites comprise 11 small (0.1-08 km2) stocks and dykes, some cutting schists and others occupying the central parts of peralkaline syenite intrusions. Peralkaline syenites are subordinate and form small stocks, dykes, lenses of 550-60 x 200-250 m. The youngest rocks are dykes up to 1.5 m thick of fine-grained granite which cut all the sedimentary and magmatic rocks of the region. Chemical analyses will be found in Sharackshinov (1984a).