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

Subduction zones have been the focus of many studies since the advent of plate tectonics in
1960s. Workings within subduction zones beneath volcanic arcs have been of particular …

Ultrahigh temperature (UHT) metamorphism is the most thermally extreme form of regional
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …

Titanium is one of many trace elements to substitute for silicon in the mineral quartz. Here,
we describe the temperature dependence of that substitution, in the form of a new …

Two mineralogic geobarometers based on the assemblage garnet-plagioclase-pyroxene-
quartz, common in granulite-grade quartzofeldspathic and basic lithologies, have been …

Ultrahigh-temperature (UHT) crustal metamorphism is a division of medium-pressure
granulite facies metamorphism where peak temperatures of 900–1100° C have been …

Until recently, the development of mineralogic geobarometry of crustal metamorphic
assemblages has lagged far behind minéralogic geothermometry. Temperatures of …

We report here for the first time the occurrence of Mg–Al granulites within the khondalite belt
of the North China Craton and provide robust evidence for extreme crustal metamorphism at …

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 …

There are three geothermometers based on reversed experimental data and applicable to
granulites: the two-pyroxene, two-oxide, and garnet-clinopyroxene thermometers. All have …