Ичетъюские алмазы: конституция, поверхностно-плёночные микроминерализации, генезис

A. E. Sukharev, V. I. Silaev, V. A. Petrovsky, E. A. Vasiliev, V. N. Filippov, A. F. Khazov, I. V. Smoleva

Аннотация


Исследованы алмазы из Ичетъюского месторождения спорного генезиса с применением методов рентгеноструктурного анализа, сканирующей электронной микроскопии, катодо-, фото- и рентгенолюминесценции; спектроскопии комбинационного рассеяния и ИК-поглощения, ЛА-ИСП-МС, изотопной массспектрометрии. Проанализирована кристалломорфология алмазов, определены параметры форм их мантийного растворения, степень и характер пластических и ударных деформаций. Выявлены особенности внутреннего строения, люминесцентно-спектроскопические свойства. Оценены валовая концентрация структурного азота, степень агрегации точечных азотных дефектов, температура мантийного отжига. Определен состав микроэлементов и изотопия углерода. Изучен минерально-фазовый состав плёнок на поверхности алмазов. Сделан вывод о туффизито-флюидизатном генетическом типе Ичетъюского месторождения

Ключевые слова


Ичетъюское месторождение; алмазы; морфология; анатомия; люминесцентно-спектроскопические свойства; микроминеральные пленки; туффизито-флюидизатный генетический тип

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Литература


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DOI: http://dx.doi.org/10.17072/psu.geol.22.2.144

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