stripes
Occurrence number:
136-13-029
Country:
Russia
Region:
Kuznetsk-Minusinsk
Location:
Longitude: 87.55, Latitude: 52.48
Carbonatite:
No
Covering 3.6x1 km Sokol is composed of foyaite, juvite and peralkaline syenite. The juvite and foyaite consist of alkali feldspar, nepheline (15-45%), cancrinite (10-40%) and sodalite (up to 30%). The syenites include biotite, pyroxene-biotite, cancrinite and cancrinite-sodalite varieties. Dykes of various compositions occur including pseudoleucite porphyry, nepheline syenite porphyry, spessartite, grorudite and solvsbergite.
References:
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.
Location: