Onset of plate tectonics by the Eoarchean
One of the most contentious areas of Earth Science today is when, or whether or not modern-
style plate tectonics was in operation in the Archean Eon. In this review we present evidence …
style plate tectonics was in operation in the Archean Eon. In this review we present evidence …
[HTML][HTML] Stagnant lids and mantle overturns: Implications for Archaean tectonics, magmagenesis, crustal growth, mantle evolution, and the start of plate tectonics
JH Bédard - Geoscience Frontiers, 2018 - Elsevier
The lower plate is the dominant agent in modern convergent margins characterized by
active subduction, as negatively buoyant oceanic lithosphere sinks into the asthenosphere …
active subduction, as negatively buoyant oceanic lithosphere sinks into the asthenosphere …
A review of structural patterns and melting processes in the Archean craton of West Greenland: Evidence for crustal growth at convergent plate margins as opposed to …
Abstract The Archean craton of West Greenland consists of many fault-bounded Eoarchean
to Neoarchean tectonic terranes (crustal blocks). These tectonic terranes are composed …
to Neoarchean tectonic terranes (crustal blocks). These tectonic terranes are composed …
The petrogenesis of ultramafic rocks in the> 3.7 Ga Isua supracrustal belt, southern West Greenland: Geochemical evidence for two distinct magmatic cumulate trends
Ultramafic rocks with MgO> 25 wt.% are found as large slivers within the Eoarchaean Isua
supracrustal belt. Some of these ultramafic bodies have previously been proposed to …
supracrustal belt. Some of these ultramafic bodies have previously been proposed to …
[HTML][HTML] Do cratons preserve evidence of stagnant lid tectonics?
D Wyman - Geoscience Frontiers, 2018 - Elsevier
Evidence for episodic crustal growth extending back to the Hadean has recently prompted a
number of numerically based geodynamic models that incorporate cyclic changes from …
number of numerically based geodynamic models that incorporate cyclic changes from …
[HTML][HTML] Highly refractory Archaean peridotite cumulates: Petrology and geochemistry of the Seqi Ultramafic Complex, SW Greenland
This paper investigates the petrogenesis of the Seqi Ultramafic Complex, which covers a
total area of approximately 0.5 km 2. The ultramafic rocks are hosted by tonalitic orthogneiss …
total area of approximately 0.5 km 2. The ultramafic rocks are hosted by tonalitic orthogneiss …
[HTML][HTML] Geochemical and thermodynamic constraints on Archean comagmatic volcanic and cumulate rocks from southern West Greenland
The extensive exposure of the Archean continental crust in southern West Greenland makes
it an important window into the tectonic evolution of early Earth. Here, we provide a …
it an important window into the tectonic evolution of early Earth. Here, we provide a …
Archaean plate tectonics in the North Atlantic craton of West Greenland revealed by well-exposed horizontal crustal tectonics, island arcs and tonalite-trondhjemite …
AA Garde, BF Windley, TF Kokfelt… - Frontiers in Earth Science, 2020 - frontiersin.org
The 700 km-long North Atlantic Craton (NAC) in West Greenland is arguably the best
exposed and most continuous section of Eo-to Neoarchaean crust on Earth. This allows a …
exposed and most continuous section of Eo-to Neoarchaean crust on Earth. This allows a …
2.8 Ga Subduction-related magmatism in the Youanmi Terrane and a revised geodynamic model for the Yilgarn Craton
DA Wyman - Precambrian Research, 2019 - Elsevier
New studies in the central and southern parts of the Murchison Domain in the Youanmi
Terrane, western Yilgarn Craton, reveal previously unidentified igneous rock types in …
Terrane, western Yilgarn Craton, reveal previously unidentified igneous rock types in …
An overview of anorthosite-bearing layered intrusions in the Archaean craton of southern West Greenland and the Superior Province of Canada: implications for …
Anorthosite-bearing layered intrusions are unique to the Archaean rock record and are
abundant in the Archaean craton of southern West Greenland and the Superior Province of …
abundant in the Archaean craton of southern West Greenland and the Superior Province of …