New Data on the Age of Ta–Nb Mineralization from the Uuksu Rare-Metal-Granite Dike Complex, (Salmi Batholith, Karelia)
New data on dikes of rare metal topaz–“zinnwaldite” granites of the Salmi anorthosite–rapakivigranite complex are presented. The U–Pb (ID-TIMS) isotopic age of Ta–Nb mineralization: the columbite-(Fe)–tantalite-(Fe) series and tapiolite is 1541 ± 2.5 Ma. Conclusions are given on the age limitations of associated rocks, intersected by analogous dikes, and the discreteness of the rare-metal magmatism manifestation in the studied area.
Authors
- Н. Г. Ризванова (ORCID: https://orcid.org/0000-0002-6426-2486)
- А. А. Конышев (ORCID: https://orcid.org/0000-0001-8119-2099)
- Н. А. Сергеева (ORCID: https://orcid.org/0000-0002-9776-7974)
Institutions
- Russian Academy of Sciences (RU)
- Institute of Precambrian Geology and Geochronology (RU)
Publication Details
- Journal
- Doklady Earth Sciences
- Published
- 2024-10-11
- DOI
- https://doi.org/10.1134/s1028334x24603705
- Primary Topic
- Geological and Geochemical Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00