Results 191 to 200 of about 876 (228)
Some of the next articles are maybe not open access.
Subduction initiation and igneous petrogenesis
2018<p>The impact of subduction initiation on regional to global tectonics and the compositions of major Earth reservoirs are topics of vigorous ongoing research. Here, pristine glasses extracted from ~51.9 Myr old basalts and younger boninites that erupted in the Izu-Bonin Mariana forearc immediately after subduction initiation were analyzed by ...
Daniel A. Coulthard +3 more
openaire +1 more source
Plume-induced subduction initiation: single- or multi-slab subduction?
2020<p>The formation of new subduction zones is a key component of global plate tectonics. Initiation of subduction following the impingement of a hot buoyant mantle plume is one of the few scenarios that allow breaking the lithosphere and recycling a stagnant lid without requiring any pre-existing weak zones.
Marzieh Baes +3 more
openaire +2 more sources
Initiation of intracontinental subduction in the Himalaya
Journal of Geophysical Research: Solid Earth, 1978Independent arguments based on topographic stress and crustal strength give upper limits of 200 bars and 300 bars, respectively, for the average shear stress on the intracontinental thrust fault that formed the Himalaya. According to either a one‐dimensional or a two‐dimensional fault model, such stresses could not have produced the Himalayan granites ...
openaire +1 more source
Plume-Induced subduction initiation
2021Subduction initiation induced by a hot and buoyant mantle plume head is unique among proposed subduction initiation mechanisms because it does not require pre-existing weak zones or other forces for lithospheric collapse. Since recognition of the first evidence of subduction nucleation induced by a mantle plume in the Late Cretaceous Caribbean realm ...
Baes, Marzieh +4 more
openaire +1 more source
Subduction initiation at passive margins
2010Subduction is a key process for terrestrial plate tectonics, but its initiation is still not entirely understood. In particular, despite the abundance of both passive and active continental margins on Earth, no obvious cases of transition between them have been identified so far.
Nikolaeva, K. +2 more
openaire +1 more source
Subduction, collision and initiation of hominin dispersal
Quaternary Science Reviews, 2009Subduction is the main driving force of plate tectonics controlling the physiography of the Earth. The northward subduction of the Sinai plate was interrupted during the Early Pleistocene when the Eratosthenes Seamount began to collide with the Cyprian arc.
Uri Schattner, Michael Lazar
openaire +1 more source
Initiation of subduction in the Alps: Continent or ocean?
Geology, 2010The triggering event for the modern evolution of the European Alps was the onset of subduction in the Middle Jurassic. However, there is some debate as to how this onset occurred: as (1) oceanic subduction; (2) the succession of an earlier (Tethys) and a later (Penninic) oceanic subduction; or even (3) intracontinental subduction.
Kurt Stüwe, Ralf Schuster
openaire +1 more source
Characterization of subduction initiation
Journal of Oceanology and Limnology, 2022Weidong Sun, Lipeng Zhang
openaire +1 more source
Subduction initiates at straight passive margins
Geology, 2014Subduction initiation at straight passive margins can be investigated with two-dimensional (2-D) numerical models, because the geometry is purely cylindrical. However, on Earth, straight margins rarely occur. The construction of 3-D models is therefore critical in the modeling of spontaneous subduction initiation at realistic, curved passive margins ...
F.O. Marques +4 more
openaire +1 more source