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Morphology of microdiamonds from the north Bohemian granulites

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JAKUBOVÁ Petra KOTKOVÁ Jana LEICHMANN Jaromír

Rok publikování 2014
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Popis The occurrence of diamonds in both felsic (Grt-Ky-Fs-Qtz) and in intermediate (Grt-Cpx-Fs-Qtz) granulite in North Bohemia, which formed at comparable P-T conditions, allows studying the influence of the bulk rock composition on the diamond morphology. Based on morphology of diamond enclosed in kyanite, garnet and zircon we may assume that the diamonds were formed in one stage at stable conditions and some of them were affected by the later resorption. Different diamond morphology may be controlled by impurities available in the medium of crystallization.
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