Geology |
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| Melanocratic microgranular enclaves in quartz syenites of the Burgasy pluton (Ulan-Burgasy ridge). | Melanocratic microgranular enclaves in quartz syenites of the Burgasy pluton (Ulan-Burgasy ridge). | Impregnations of potassium feldspar in biotite granites of the Temen pluton (Angara-Vitim batholith, low Kurba river). |
