| | Journal (article/letter/editorial) | 12031 Multistage progressive evolution of rare osumilite-bearing assemblages preserved in ultrahigh-temperature...Paris 7, France ABSTRACT Osumilite is reported in Palaeoproterozoic Al–Mg-rich granulites from the Khanfous...assemblages are osumilite + sapphirine + biotite + orthopyroxene + sillimanite and osumilite + orthopyroxene...and silica-saturated granulites respectively. Osumilite coexists with F-rich biotite (XF 0.6). The observed...the osumilite-bearing assemblages are 8.5–9.0 kbar and 930–980 °C. During retrogression, osumilite was |
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