Microparagenesis of diamonds and native aluminum in ejecta of recent volcanism |
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| Authors: | V I Silaev L P Vergasova E A Vasil’ev G A Karpov A E Sukharev S K Filatov |
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| Institution: | 1.Institute of Geology, Komi Republic, Science Center, Urals Branch,Russian Academy of Sciences,Syktyvkar,Russia;2.Institute of Volcanology and Seismology, Far East Branch,Russian Academy of Sciences,Petropavlovsk-Kamchatskii,Russia;3.Gornyi National Institute of Mineral Resources,Vasil’evskii ostrov,St. Petersburg,Russia;4.St. Petersburg University,St. Petersburg,Russia |
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| Abstract: | The particles of native aluminum that were extracted from ejecta of the 1988 Klyuchevskoi eruption were found to contain numerous inclusions of ultramicrodiamonds of the cuboctahedral habitus. We discuss the results of X-ray spectroscopy, X-ray structural, and spectroscopic studies of minerals that support the previous inference as to electric-shock–stimulated crystallization of diamonds from volcanic gases. |
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