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 …

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

A text which aims to help undergraduate students in geology to recognize and interpret
metamorphic textures and microstructures in thin-section. For lecturers and postgraduates in …

The In Ouzzal terrane (Western Hoggar) is an example of Archaean crust remobilized during
a very-high-temperature metamorphism related to the Paleoproterozoic orogeny (2 Ga). Pan …

Sapphirine, coexisting with quartz, is an indicator mineral for ultrahigh‐temperature
metamorphism in aluminous rock compositions. Here a new activity‐composition model for …

Highly magnesian and aluminous migmatitic gneisses from Mather Peninsula in the Rauer
Group, Eastern Antarctica, preserve ultrahigh temperature (UHT) metamorphic assemblages …

Spinel granulites, with or without sapphirine, occur as lenses in garnetiferous
quartzofeldspathic gneisses (leptynites) near Gokavaram in the Eastern Ghats Belt, India …

Calcium-poor, magnesian granulites from two localities in central Sri Lanka contain a rich
variety of assemblages composed of combinations of sapphirine (Spr), garnet …

Integrated structural, petrological and geochronological study on a suite of granulites from
the central part of the Eastern Ghats Belt (EGB), India unveils polyphase tectonothermal …