Topaz granites and ongonites оf Chaunsky mining area (Chukotka)
- Ph.D. associate professor Saint Petersburg State Mining University
Abstract
Having used an optical and raster electronic microscopy were analyzed a topaz granites with accompanying them ongonites discovered for the first time in Chaunsky area of Chukotka. Finding history, specifics of geological location, mineral composition and rock structure are described. Their connection with stannane orebody is considered.The topaz granites have essentially albite composition, contain zinnwaldite, topaz, fluorite and first located in Far East granites wolframoixiolite. The pyrkakajsky intrusive complex of rare-metal granites is allocated. A conclusion about the development possibility of Chaunsky rare-metal deposits potentials is drawn.
None
References
- Alekseev V.I. About the origin of lithium-fluoric granites of the Severny massif (the Chukotka) // Proceedings of the Russian Mineralogical Society. 2005. No 6. P.19-30.
- Alekseev V.I., Marin Y.B. The occurrence of ongonite magmatism as petrological indicator of geodynamical process and minerogenic prospects of Kujviveem-Pyrkakajsky area (Chukotka) // Magmatism and ore genesis / Edited by N.S.Bortnikov and O.A.Bogatikov. Moscow, 2009. P.13-17.
- Voloshin A.V. Tantalum-niobates. Classification, crystal chemistry and evolution of mineral formation in granite pegmatite. Saint Petersburg, 1993. 298 p.
- Dudkinskij D.V., Efremov S.V., Kozlov V.D. Lithium-fluoric granites of the Chukotka and their geochemical features // Geochemistry. 1994. N 3. P.393-402.
- Zagruzina I.A. the Late Mesozoic granites of the east coast of the Chaun bay // Works of Northeast complex scie ntific research institute. Magadan, 1965. N 12. P.4-140.
- Kovalenko V.I. Petrology and geochemistry of rare metal granitoids. Novosibirsk, 1977. 206 p.
- Sobolev A.P. Mesozoic granitoids of northeasterly USSR and problems of their ore presence. Moscow, 1989. 248 р.