Crustal melting and suprasolidus phase equilibria: From first principles to the state-of-the-art

T Johnson, C Yakymchuk, M Brown - Earth-Science Reviews, 2021 - Elsevier
Partial melting is the fundamental process by which juvenile crust was produced from the
mantle and subsequently reworked to become the stable, compositionally-differentiated …

New mineral activity–composition relations for thermodynamic calculations in metapelitic systems

RW White, R Powell, TJB Holland… - Journal of …, 2014 - Wiley Online Library
New activity–composition (a–x) relations for minerals commonly occurring in metapelites are
presented for use with the internally consistent thermodynamic dataset of Holland & Powell …

[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 …

Assembly of central Gondwana along the Zambezi Belt: Metamorphic response and basement reactivation during the Kuunga Orogeny

B Goscombe, DA Foster, D Gray, B Wade - Gondwana Research, 2020 - Elsevier
Central Gondwana was assembled by three continental collisions in relatively quick
succession: late Cryogenian East Africa Orogen, early Ediacaran West Antarctica Orogen …

Tracing the crustal evolution of the Precambrian Southern Granulite terrane in East Gondwana: New insights from zircon U-Pb/Hf geochronology

JK Tomson, JA Dev - Bulletin, 2024 - pubs.geoscienceworld.org
Abstract The Precambrian Southern Granulite terrane of south India has a crustal evolution
history broadly bracketed between the late Archean and Cambrian with records of …

A geological synthesis of the Precambrian shield in Madagascar

RD Tucker, JY Roig, B Moine, C Delor… - Journal of African Earth …, 2014 - Elsevier
Available U–Pb geochronology of the Precambrian shield of Madagascar is summarized
and integrated into a synthesis of the region's geological history. The shield is described in …

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 …

Ferrous/ferric (Fe2+/Fe3+) partitioning among silicates in metapelites

JB Forshaw, DRM Pattison - Contributions to Mineralogy and Petrology, 2021 - Springer
Abstract Fe3+ and XFe3+, defined as Fe3+/(Fe2++ Fe3+) on a molar basis, are now
recognised as key parameters in phase equilibrium modelling. A hindrance is that it is only …

[HTML][HTML] Garnet fractionation, progressive melt loss and bulk composition variations in anatectic metabasites: Complications for interpreting the geodynamic …

J Kendrick, C Yakymchuk - Geoscience Frontiers, 2020 - Elsevier
Abstract Tonalite-trondhjemite-granodiorite (TTG) suites constitute a large proportion of the
Archean geological record; however, the geodynamic processes that generated them, and …

Focused radiogenic heating of middle crust caused ultrahigh temperatures in southern Madagascar

F Horton, B Hacker, A Kylander‐Clark, R Holder… - …, 2016 - Wiley Online Library
Internal heating can cause melting, metamorphism, and crustal weakening in convergent
orogens. This study evaluates the role of radiogenic heat production (RHP) in a …