Mechanisms to generate ultrahigh-temperature metamorphism
Ultrahigh-temperature (UHT; T max≥ 900° C) metamorphism requires unusually high heat
in continental crust at depths of 15–55 km, but how such extreme thermal conditions are …
in continental crust at depths of 15–55 km, but how such extreme thermal conditions are …
Phase relations, reaction sequences and petrochronology
C Yakymchuk, C Clark… - Reviews in Mineralogy …, 2017 - pubs.geoscienceworld.org
At the core of petrochronology is the relationship between geochronology and the
petrological evolution of major mineral assemblages. The focus of this chapter is on …
petrological evolution of major mineral assemblages. The focus of this chapter is on …
[HTML][HTML] On ultrahigh temperature crustal metamorphism: Phase equilibria, trace element thermometry, bulk composition, heat sources, timescales and tectonic …
DE Kelsey, M Hand - Geoscience Frontiers, 2015 - Elsevier
Ultrahigh temperature (UHT) metamorphism is the most thermally extreme form of regional
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …
Behaviour of zircon and monazite during crustal melting
C Yakymchuk, M Brown - Journal of the Geological Society, 2014 - lyellcollection.org
Ages retrieved from accessory minerals in high-grade metamorphic rocks place important
constraints on the timing of events and the rates of tectonometamorphic processes operating …
constraints on the timing of events and the rates of tectonometamorphic processes operating …
High‐grade metamorphism and partial melting of basic and intermediate rocks
Rocks of basic and intermediate bulk composition occur in orogenic terranes from all
geological time periods and are thought to represent significant petrological components of …
geological time periods and are thought to represent significant petrological components of …
Crustal melting and suprasolidus phase equilibria: From first principles to the state-of-the-art
Partial melting is the fundamental process by which juvenile crust was produced from the
mantle and subsequently reworked to become the stable, compositionally-differentiated …
mantle and subsequently reworked to become the stable, compositionally-differentiated …
Consequences of open-system melting in tectonics
C Yakymchuk, M Brown - Journal of the Geological Society, 2014 - lyellcollection.org
Partial melting and melt drainage from deep suprasolidus crust in orogens has important
consequences for tectonics. Melt extraction along prograde segments of clockwise P–T …
consequences for tectonics. Melt extraction along prograde segments of clockwise P–T …
Ultrahigh temperature metamorphism recorded in the Lüliang Complex, Trans-North China Orogen: P–T–t evolution and heating mechanism
Identifying ultrahigh temperature (UHT) metamorphism from hot orogens and establishing its
pressure–temperature–time (P–T–t) path will provide notable insights into tectonic evolution …
pressure–temperature–time (P–T–t) path will provide notable insights into tectonic evolution …
Time's arrow, time's cycle: Granulite metamorphism and geodynamics
Although the thermal evolution of the mantle before c. 3.0 Ga remains unclear, since c. 3.0
Ga secular cooling has dominated over heat production—this is time's arrow. By contrast …
Ga secular cooling has dominated over heat production—this is time's arrow. By contrast …
[HTML][HTML] Prograde and retrograde growth of monazite in migmatites: An example from the Nagercoil Block, southern India
Data from a migmatised metapelite raft enclosed within charnockite provide quantitative
constraints on the pressure–temperature–time (P–T–t) evolution of the Nagercoil Block at …
constraints on the pressure–temperature–time (P–T–t) evolution of the Nagercoil Block at …