Alkaline Rocks and Carbonatites of the World

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Occurrence number: 
Longitude: 76, Latitude: 51.18

This intrusion covers nearly 30 km2 and is composed of porphyritic and medium-grained peralkaline granites which are cut by vein-like bodies and dykes of peralkaline granite porphyry. The country rocks have been altered with the development of quartz and muscovite. The granites consist of microcline, albite, quartz, arfvedsonite, riebeckite and biotite. They are rich in accessory minerals including fluorite, zircon, including a metamict variety, orthite, monazite, ferrothorite, topaz, ilmenite, titanite, apatite. pyrite, baryte, garnet, rutile, anatase, galena, wulfenite and scheelite.

Late Carboniferous to early Permian (Monich et al., 1965b).
MONICH, V.K., ABDRAKHMANOV, K.A., NURLIBAYEV, A.N., ZHYR'ANOV, V.N., STAROV, V.I., NARSEEV, A.A., BUGAEZ, A.N. and SEMENOV, Yu, A. 1965a. Alkaline intrusions of Kazakhstan and their age correlation. Abstracts of the First Kazakhstan Petrographic Conference. Kazakhstan Academy of Science, Alma-Ata. 19-22.MONICH, V.K., IVANOV, A.I., KOMLEV, L.V., LAPICHEV, G.F. and SEMENOV, T.P. 1965b. Age of magmatic and metamorphic rocks of the East Kazakhstan geochronological scale. In Magmatism and metamorphism of East Kazakhstan. 27-8. Akademii Nauk Kazakhstan SSR, Alma-Ata.
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