stripes
The Cheremushinskii intrusion has an area of 1.25 km2 and cuts metamorphic rocks of Upper Proterozoic age and Cambrian volcanics. It is composed of gabbro, melteigite and nepheline syenite. The melteigite has phenocrysts of nepheline (10%) and clinopyroxene (10%) in a groundmass of nepheline (55%) and pyroxene (40%) varying from titanaugite to aegirine-augite. The nepheline syenite consists of nepheline (40%), feldspar (20%), andesine (8%), augite and aegirine-augite (8%), arfvedsonite (14%), olivine (3%) and cancrinite.
DOVGAL' V.N. and SHIROKIH, V.A. 1980. History of the development of the high alkaline magmatism of the Kuznetsk Alatau. Proceedings of the Institute of Geology and Geophysics, Nauka, Siberian Branch of the Academy of Sciences, Novosibirsk. 457. 216 pp.