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The presence of aragonite inclusions in garnet from diamond-grade metamorphic rocks from the Kokchetav Massif, Northern Kazakhstan was identified for the first time by means of Raman analyses and mapping. Aragonite appears within the inclusions up to 50μm in size as a single crystal. These inclusions have rounded shape. The grain boundary between the host–garnet is smooth. No cracks occur around the...
Aragonite and omphacite‐bearing metapelite occurs in the albite–biotite zone of the Togu (Tohgu) area, Besshi region, Sambagawa metamorphic belt, central Shikoku, Japan. This metapelite consists of alternating graphite‐rich and graphite‐poor layers that contain garnet, phengite, chlorite, epidote, titanite, calcite, albite, and quartz. A graphite‐poor layer contains a 1.5‐cm ivory‐colored lens that...
Raman-based geobarometry has recently become increasingly popular because it is an elegant way to obtain information on peak metamorphic conditions or the entire pressure-temperature-time (P-T-t) path of metamorphic rocks, especially those formed under ultrahigh-pressure (UHP) conditions. However, several problems need to be solved to get reliable estimates of metamorphic conditions. In this paper...
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