The Angara-Vitim batholith is group of plutons in the eastern Siberia, just east of Lake Baikal. The batholith formed in the Devonian–Early Carboniferous likely in connection to a mantle plume. It formed about the same time and by the same process as the Kalba-Narym batholith in eastern Kazakhstan.
Common rock types are granite with biotite and granodiorite. The rocks belong to the high-K and shoshonite subseries of the calc-alkaline magma series. Some rocks do belong to the alkaline magma series.
References
- ^ Khromykh, S.V.; Tsygankov, A.A.; Kotler, P.D.; Navozov, O.V.; Kruk, N.N.; Vladimirov, A.G.; Travin, A.V.; Yudin, D.S.; Burmakina, G.N.; Khubanov, V.B.; Buyantuev, M.D.; Antsiferova, T.N.; Karavaeva, G.S. (2016). "Late Paleozoic granitoid magmatism of Eastern Kazakhstan and Western Transbaikalia: plume model test". Russian Geology and Geophysics. 57.