stripes
Occurrence number:
136-13-019
Country:
Russia
Region:
Kuznetsk-Minusinsk
Location:
Longitude: 92.67, Latitude: 54.42
Carbonatite:
No
This intrusion occurs amongst limestones and volcanic rocks of Cambrian age. Pink, coarse-grained, peralkaline syenites are the dominant rocks and consist predominantly of alkali feldspar, together with a little nepheline and aegirine. Small bodies of aegirine-nepheline syenite and dykes of fine-grained syenite are present in the intrusion. Nepheline is replaced, as a rule, by an aggregate consisting of secondary hydromica, cancrinite and zeolite.
References:
LUCHITSKY, I.V. 1960. Volcanism and tectonics of Devonian depressions of the Minusinsk intermontane trough. Publishing House of the USSR Academy of Sciences, Moscow. 275 pp.
Location: