Plate tectonics and the Archean Earth
If we accept that a critical condition for plate tectonics is the creation and maintenance of a
global network of narrow boundaries separating multiple plates, then to argue for plate …
global network of narrow boundaries separating multiple plates, then to argue for plate …
[HTML][HTML] Secular change and the onset of plate tectonics on Earth
The Earth as a planetary system has experienced significant change since its formation c.
4.54 Gyr ago. Some of these changes have been gradual, such as secular cooling of the …
4.54 Gyr ago. Some of these changes have been gradual, such as secular cooling of the …
[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 …
The diversity and evolution of late-Archean granitoids: Evidence for the onset of “modern-style” plate tectonics between 3.0 and 2.5 Ga
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 …
aspects of the geological record. In Archean cratons, this timespan is marked by a …
Earth's earliest granitoids are crystal-rich magma reservoirs tapped by silicic eruptions
Granitoids of the tonalite–trondhjemite–granodiorite (TTG) series dominate Earth's earliest
continental crust. The geochemical diversity of TTGs is ascribed to several possible …
continental crust. The geochemical diversity of TTGs is ascribed to several possible …
Archaean tectonic systems: A view from igneous rocks
This work examines the global distribution of Archaean and modern igneous rock's
compositions, without relying on preconceptions about the link between rock compositions …
compositions, without relying on preconceptions about the link between rock compositions …
Oxygen isotopes trace the origins of Earth's earliest continental crust
Much of the current volume of Earth's continental crust had formed by the end of the
Archaean eon (2.5 billion years ago), through melting of hydrated basaltic rocks at depths of …
Archaean eon (2.5 billion years ago), through melting of hydrated basaltic rocks at depths of …
Formation of Archean (3600–2500 Ma) continental crust in the Dharwar Craton, southern India
The generation, preservation and destruction of continental crust on Earth is of wide interest
in understanding the formation of continents, cratons and supercontinents as well as related …
in understanding the formation of continents, cratons and supercontinents as well as related …
Tectonic evolution of convergent plate margins and its geological effects
Oceanic lithosphere is generated at divergent plate boundaries and disappears at
convergent plate boundaries. Seafloor spreading and plate subduction together constitute …
convergent plate boundaries. Seafloor spreading and plate subduction together constitute …
Collision vs. subduction-related magmatism: two contrasting ways of granite formation and implications for crustal growth
Earth's continental crust is dominantly made of buoyant, felsic igneous material (granitoids),
that was ultimately extracted from the mantle as a result of Earth's differentiation. Since felsic …
that was ultimately extracted from the mantle as a result of Earth's differentiation. Since felsic …