1. Rare-metal granitoids of the Ulug-Tanzek deposit (Eastern Tyva): Age and tectonic setting.
- Author
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Yarmolyuk, V. V., Nikiforov, A. V., Sal'nikova, E. B., Travin, A. V., Kozlovskiy, A. M., Kotov, A. B., Shuriga, T. N., Lykhin, D. A., Lebedev, V. I., Anisimova, I. V., Plotkina, Yu. V., and Yakovleva, S. Z.
- Subjects
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NONFERROUS metals , *URANIUM-lead dating , *ARGON-argon dating , *RADIOACTIVE dating , *ZIRCON , *GEOCHRONOMETRY , *STRUCTURAL geology , *GRANITE - Abstract
The article offers information on the results of the dating of alkaline granitoids of the Ulug-Tanzek Massif deposit in Tuva, Russia through uranium-lead (U-Pb) method for zircon and Argon-Argon (Ar-Ar) method. A sample from polylithionite-bearing ribeckite granite was studied for Ar-Ar geochronological investigations, in which, results revealed that approximately 85% of Ar that has clearly formed reflected three-step plateau with an age of 296 plus-minus two million years (Ma). In U-Pb dating, a sample of muscovite quartz-albite-microline granite with a netlike texture was used, in which, the determined age of 301 plus-minus three Ma, is similar within the error limits of the age estimation for the first sample using Ar-Ar method.
- Published
- 2010
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