stripes
The Saizhekonskii massif is about 1.5 x 2.5 km and intrudes Upper Palaeozoic schists and limestones and granitoids of the Lower Proterozoic. The central part of the massif is composed principally of trachytic peralkaline syenites with lens-shaped bodies of juvite, urtite and feldspar-bearing urtite within them. In the central part of the massif large (up to 200 x 700 m) schist and marble xenoliths are preserved. Chemical compositions are available in Sharackshinov (1984a).
KONEV, A.A. 1982. Nepheline-bearing rocks from the Sayan-Baikal area. Nauka, Siberian Branch of the Academy of Sciences, Novosibirsk. 201 pp.
SHARACKSHINOV, A.O. 1984a. Alkaline magmatism of the Vitim Plateau. Nauka, Siberian Branch of the Academy of Sciences, Novosibirsk. 183 pp.
