First data on yatulian (2.1 Ga) metamorphism in the Belomorian mobile belt
| Autor: | V. M. Kozlovskiy, V. M. Savatenkov, L. B. Terentyeva, E. B. Kurdyukov |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Доклады Академии наук. 485:341-345 |
| ISSN: | 0869-5652 |
| DOI: | 10.31857/s0869-56524853341-345 |
| Popis: | The Sm-Nd isotope ages of apoamphibolite eclogites and eclogite-like garnet-clinopyroxene crystalline schists collected in the Chupa and Engozero segments of the Belomorian mobile belt are estimated. Eclogites and eclogite-like garnet-clinopyroxene rocks demonstrated nearly the same isotope age (2119±170 and 2191±39 Ma, respectively) on the same pair of minerals (garnet-clinopyroxene). The age obtained (about 2.1 Ga) is the oldest indicator of the onset of Paleoproterozoic metamorphism in the Belomorian mobile belt. |
| Databáze: | OpenAIRE |
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