Обобщенный опыт изучения и диагностики конвергентных пород на примере карбонатизированных флюидоэксплозивных ультрамафитов дайкового комплекса Среднего Тимана

I. I. Golubeva, A. S. Shuyskiy, V. N. Filippov, I. N. Burtsev

Аннотация


На Среднем Тимане выделены дайковые флюидоэксплозивные породы с конвергентными свойствами за счет сочетания эксплозивных и метасоматических процессов. Изучение петрографических особенностей пород выявило их эксплозивную природу, а исследование химического состава породообразующих минералов установило источник мантийного материала и парагенетическую связь с карбонатитовым магматизмом. Флюидоэксплозивные породы дайкового комплекса связаны с фенитизацией вмещающей толщи с последующей ее дезинтеграцией и заполнением трещин твердогазовым материалом смешанного мантийно-корового состава. На последнем этапе становления флюидоэксплозивных пород за счет карбонатизации проявляются редкометалльно-редкоземельная и сульфидная минерализации.

Ключевые слова


карбонатиты; дайки; флюид; эксплозия; редкоземельно-редкометалльная минерализация; Средний Тиман

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DOI: http://dx.doi.org/10.17072/psu.geol.20.1.11

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