Western Keivy Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Large alkaline granite massif with age ~2100-2440 Ma located in Western part of Keivy chain. Age of amazonite pegmatites croscutting alkaline granites of the massif is 1690 Ma.

Refs.:
- I.V. Bel'kov, I.D. Batieva, G.V. Vinogradova, A.N. Vinogradov (1988) Mineralization and fluid regime of contact zones of alkaline granite intrusions, - Apatity, pp.110 (in Russ.).
- I.V. Bel'kov (1979) Accessory minerals of granitoids of Kola peninsula, - Leningrad, Nauka, pp.184 (in Russ.).
- A.V. Voloshin, Ya.A. Pakhomovskii (1986) Minerals and mineralformation evolution in amazonite pegmatites of Kola peninsula, - Leningrad, Nauka, pp.168 (in Russ.).