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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). | Melanocratic microgranular enclaves in quartz syenites of the Burgasy pluton (Ulan-Burgasy ridge). |
