Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Kanozerskii

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Occurrence number: 
136-12-024
Country: 
Russia
Region: 
Kola and Karelia
Location: 
Longitude: 33.97, Latitude: 67.08
Carbonatite: 
No

Kanozerskii is controlled by a northwesterly-trending deep fault. It is an elongate body bifurcating to the northwest and has an area of 150 km2. Dykes, veins and small intrusions of alkaline granites occur to the east of the massif which consists essentially of peralkaline granite containing lepidomelane and ferrohastingsite. The principal minerals are quartz, plagioclase (albite-oligoclase), microcline, ferrohastingsite, lepidomelane and aegirine-augite. Accessory minerals are titanite, zircon, orthite, apatite, fluorite, pyrite and magnetite.

Age: 
The Pb method on zircon gave 2330-2365 Ma (Pushkarev, 1990).
References: 

BATIEVA, I.D. 1976. The petrology of alkaline granitoids of the Kola peninsula. Nauka, Leningrad. 223 pp.
BATIEVA, I.D. 1985. Alkaline granites of the Kanozero-Kolvitsky lake. 1958. In. Alkaline granites of the Kola peninsula. Izdatelstvo Akademii Nauk SSSR, Moscow and Leningrad. 146-70.
PUSHKAREV, Yu.D. 1990. Megacycles in the evolution of the crust-mantle system. Leningrad. Nauka, Leningrad. 300 pp.

Map: 
Fig. 2_25. Kanozerskii (after Batieva, 1976, Fig. 3).
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith