The diversity and evolution of late-Archean granitoids: Evidence for the onset of “modern-style” plate tectonics between 3.0 and 2.5 Ga

O Laurent, H Martin, JF Moyen, R Doucelance - Lithos, 2014 - Elsevier
The end of the Archean aeon (3.0–2.5 Ga) was a period of fundamental change in many
aspects of the geological record. In Archean cratons, this timespan is marked by a …

Conditions during the formation of granitic magmas by crustal melting–hot or cold; drenched, damp or dry?

JD Clemens, G Stevens, SE Bryan - Earth-Science Reviews, 2020 - Elsevier
Granitic magmas extracted from crustal sources can form over a wide variety of P, T and aH
2 O conditions. Both fluid-present and effectively fluid-absent conditions can yield granitic …

Crustal melting vs. fractionation of basaltic magmas: Part 1, granites and paradigms

JF Moyen, V Janoušek, O Laurent, O Bachmann… - Lithos, 2021 - Elsevier
Granitoids are a major component of the continental crust. They play a pivotal role in its
evolution, either by adding new material (continental growth), or by reworking older …

[HTML][HTML] What can we learn from melt inclusions in migmatites and granulites?

B Cesare, A Acosta-Vigil, O Bartoli, S Ferrero - Lithos, 2015 - Elsevier
With less than two decades of activity, research on melt inclusions (MI) in crystals from rocks
that have undergone crustal anatexis–migmatites and granulites–is a recent addition to …

A linear Hf isotope-age array despite different granitoid sources and complex Archean geodynamics: Example from the Pietersburg block (South Africa)

O Laurent, A Zeh - Earth and Planetary Science Letters, 2015 - Elsevier
Abstract Combined U–Pb and Lu–Hf isotope data from zircon populations are widely used to
constrain Hadean–Archean crustal evolution. Linear Hf isotope-age arrays are interpreted to …

Melt segregation and magma interactions during crustal melting: Breaking out of the matrix

JD Clemens, G Stevens - Earth-Science Reviews, 2016 - Elsevier
Differentiation of the continental crust begins with its partial melting. The products of crustal
melting are silicic, hydrous, H 2 O-undersaturated, granitic liquids that are generated within …

Felsic crust development in the Kaapvaal Craton, South Africa: A reference sample collection to investigate a billion years of geological history

JF Moyen, AJ McCoy-West, E Bruand, MA Millet… - Earth-Science …, 2024 - Elsevier
The crust of the Kaapvaal craton accreted throughout the Archaean over nearly 1 billion
years. It provides a unique example of the various geological processes that shape Earth's …

Sedimentation, metamorphism and granite generation in a back-arc region: Records from the Ediacaran Nova Venécia Complex (Araçuaí Orogen, Southeastern Brazil …

F Richter, C Lana, G Stevens, I Buick… - Precambrian …, 2016 - Elsevier
Abstract The Nova Venécia migmatite-granulite-granite Complex (NVC) in the core of the
Araçuaí Orogen (AO, 630–480 Ma), southeast Brazil, exposes a mid-crustal section with …

Phase equilibrium modelling of granite magma petrogenesis: A. An evaluation of the magma compositions produced by crystal entrainment in the source

M Garcia-Arias, G Stevens - Lithos, 2017 - Elsevier
S-type granites show strong positive or negative correlations for several elements and
element ratios plotted against maficity (FeO+ MgO), and the maficity of the granites is usually …

Phase equilibria modelling of residual migmatites and granulites: An evaluation of the melt‐reintegration approach

O Bartoli - Journal of Metamorphic Geology, 2017 - Wiley Online Library
Suprasolidus continental crust is prone to loss and redistribution of anatectic melt to shallow
crustal levels. These processes ultimately lead to differentiation of the continental crust. The …