First Data on Yatulian (2.1 Ga) Metamorphism in the Belomorian Mobile Belt


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Аннотация

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.

Авторлар туралы

V. Kozlovskiy

Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: bazil@igem.ru
Ресей, Moscow, 119017

V. Savatenkov

Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences; Institute of Earth Sciences, St. Petersburg State University

Email: bazil@igem.ru
Ресей, St. Petersburg, 119034; St. Petersburg, 119034

L. Terentyeva

Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences

Email: bazil@igem.ru
Ресей, St. Petersburg, 119034

E. Kurdyukov

Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences

Email: bazil@igem.ru
Ресей, Moscow, 119017

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