Abstract The Rauer Group in East Antarctica is a typical high- to ultrahigh-temperature (HT–UHT) granulite-facies terrane. As UHT metamorphism has been recognized only Mg–Al-rich pelitic granulites from the Mather Paragneiss, regional extent of remains uncertain, which hindered our understanding genesis and tectonic setting Group. In this study, representative samples mafic granulite were selec...

Geochemical signatures throughout the layered Earth require significant mass transfer through the lower crust, yet geological pathways are under-recognized. Elongate bodies of basic to ultrabasic rocks are ubiquitous in exposures of the lower crust. Ultrabasic hornblendite bodies hosted within granulite facies gabbroic gneiss of the Pembroke Valley, Fiordland, New Zealand, are typical occurrenc...

The El Escorial marbles (Cushamen Metamorphic Complex) along with amphibolites form metamorphic septa within the permian granitoids of Mamil Choique Formation (261-286 Ma). metamorphism, determined in granulite facies migmatic gneisses cropping out 120 km southwest Escorial, occurs at 311 ± 27 Ma (CHIME method monazite). are calcitic (calcite > 95%, R.I.: 0.5 to 2.5%) and show 87Sr/86Sr valu...