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Fluorine-rich calcic amphiboles in ultrahigh-temperature mafic granulite from Tonagh Island in the Napier Complex, East Antarctica: Preliminary report
Fluorme-nch calc1c amph1boles occur m ultrahigh-temperature mafic granuhte from Tonagh Island m the Napier Complex, East Antarctica The amph1boles are subd1v1ded mto two types high-grade browmsh to pale browmsh amph1bole and retrograde greemsh amph1bole The browmsh am ph1bole 1s pargas1t1c occurnng as a subhedral gram m two-pyroxene mafic granuhte It contains up to 2 2 wt% fluonne, which corresponds to an F /(F + Cl+OH) ratio of O 54 (sample B98020801) In sample B98020802B, browmsh amph1bole 1s
doi:10.15094/00003068
fatcat:h2gr2v3dojhullx7ntigbkllme