Granulites and pyroxenites generally contain plagioclase, clinopyroxene, orthopyroxene and hornblende. Talcschists contain talc, serpentine and chlorite. These parageneses reflect a metamorphic ...

Granulites and pyroxenites generally contain plagioclase, clinopyroxene, orthopyroxene and hornblende. Talcschists contain talc, serpentine and chlorite. These parageneses reflect a metamorphic ...

The Red River shear zone (figure 4) comprises the Day Nui Con Voi metamorphic belt and, on its eastern flank, the Lo Gam tectonic zone (Garnier, 2003; Pham et al., 2004a,c). The Luc Yen ruby and ...

As in the Csp facies, the schist lithoclasts (0.3–18 cm in diameter) are concentrated in the planar stratifications, ... The heavy mineral assemblage reveals the predominance of metamorphic minerals, ...

The sub-angular to sub-rounded quartz grains display low sphericity. As in the Csp facies, the schist lithoclasts (0.3–18 cm in diameter) are concentrated in the planar stratifications, while quartz ...

Greywackes experienced up to 360C while garnet schist has reached 550C or more. "So, you take a slice of rock, zap those graphite specks with the laser, then calibrate the scatter pattern against ...

DATA on the major element composition of the crystalline surface rocks of 200,000 square miles of the Canadian Shield in northern Quebec have been published recently1. The rocks discussed are ...

The highest porosity values were 8.06 %Vol for basalt rocks and 12.79 %Vol for schist rock. ... Ultra-high temperature granulite-facies metamorphic rocks from the Mozambique belt of SW Tanzania.