First results of U-Pb geochronological studies of the Precambrian granitoids of the Batomga block of the Aldan shield |
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| Authors: | M. A. Mishkin A. M. Lennikov T. B. Bayanova G. M. Vovna V. G. Sakhno R. A. Oktyabr’sky Z. G. Badredinov |
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| Affiliation: | 1.Far East Geological Institute, Far East Branch,Russian Academy of Sciences,Vladivostok,Russia;2.Geological Institute, Kola Scientific Center,Russian Academy of Sciences,Apatity, Murmansk oblast,Russia |
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| Abstract: | This paper reports the first U-Pb geochronological data on the Precambrian granitoids of the Batomga block (Aldan shield). It was established that the amphibole diorites of this block have an age of 2062 ± 14 Ma, while biotite granites are dated at 2055 ± 7 Ma. These granitoids were subjected to epidote-amphibolie facies metamorphism 1920 ± 8 Ma ago. |
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