Paleoproterozoic gabbro–diorite–granite magmatism of the Batomga Rise (NE Aldan Shield): Sm–Nd isotope geochemical evidence


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Abstract

The geochemical similarity and almost simultaneous (2055–2060 Ma) formation of Utakachan gabbro-amphibolite, Jagdakin granodiorite-diorite, Khoyunda granitoid, and Tygymyt leucogranite complexes, which inruded metamorphic formations of the Batomga Group are evidence of their formaton from unified magmatic source. All this makes it possibble to combine aforementioned complexes into the unified Early Proterozoic diferentiated gabbro-diorite-granite complex.

About the authors

V. K. Kuzmin

Karpinsky Russian Geological Research Institute (VSEGEI)

Email: vkkuzmin@mail.ru
Russian Federation, Sredny pr. 74, St. Petersburg, 199106

E. S. Bogomolov

Karpinsky Russian Geological Research Institute (VSEGEI); Institute of Precambrian Geology and Geochronology

Email: vkkuzmin@mail.ru
Russian Federation, Sredny pr. 74, St. Petersburg, 199106; Makarova nab. 2, St. Petersburg, 199034

V. A. Glebovitskii

Institute of Precambrian Geology and Geochronology

Author for correspondence.
Email: vkkuzmin@mail.ru
Russian Federation, Makarova nab. 2, St. Petersburg, 199034


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