Ultrahigh-temperature (UHT) metamorphism is the most thermally extreme type of crustal
metamorphism, with the crust capable of withstanding temperatures≥ 900° C. Mineral …

In general, Archean rocks exhibit rather ordinary moderate-P-high-T facies series
metamorphism; neither blueschists nor any record of deep continental subduction and return …

Abstract Ultra‐high‐temperature (UHT) metamorphism occurs when the continental crust is
subjected to temperatures of greater than 900° C at depths of 20–40 km. UHT …

Ferric iron is present in all metamorphic rocks and has the ability to significantly affect their
phase relations. However, the influence of ferric iron has commonly been ignored, or at least …

Granulite facies ultrahigh temperature metamorphism (G-UHTM) is documented in the rock
record predominantly from Neoarchean to Cambrian; G-UHTM facies series rocks may be …

The digital image of airborne radiometric data across South Africa reveals that the largest
anomaly,≥ 100 nGy/h, is caused by the granulite-facies rocks of the Namaquan …

Reaction textures, equilibrium assemblage modelling and in situ U–Th–total Pb monazite
and zircon U–Pb LA-ICP-MS dating of metapelitic rocks provide new insights to the tectono …

An Al‐rich, quartz‐absent corundum‐bearing pelitic granulite is reported for the first time at
the Diebusige complex in the Alxa Block in the western part of the Khondalite Belt (KB) …

A new occurrence of the rare corundum+ quartz assemblage and magnesian staurolite has
been found in a gedrite–garnet rock from the Central Zone of the Neoarchean Limpopo Belt …

Archean supracrustal rocks that occur as rafts within tonalite–trondhjemite–granodiorite
(TTG) gneisses can reach ultra-high temperature (UHT) conditions. Their metamorphic P–T …