Plume‐Induced Subduction Initiation: Single‐Slab or Multi‐Slab Subduction? [PDF]
Geochemistry, Geophysics, Geosystems, 2020 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 preexisting weak zones.
Marzieh Baes +3 more
doaj +10 more sources
Timescales of subduction initiation and evolution of subduction thermal regimes
Earth and Planetary Science Letters, 2022 Subduction zones are first-order features of plate tectonics on Earth, yet the mechanisms by which subduction initiates remain enigmatic and controversial. Here, we reappraise the timing of metamorphism of the rock units first detached from the leading edge of the downgoing slab during initiation of the Neotethys subduction, now preserved in the ...
Benoit Dubacq +2 more
exaly +5 more sources
Subduction initiation triggered the Caribbean large igneous province [PDF]
Nature Communications, 2023 Using a large-scale 3D geodynamic model, the authors show how the transfer of subduction zone from the Pacific to the Atlantic triggered the formation of a mantle plume at the origin of the Cretaceous Caribbean Large Igneous province.
Nicolas Riel +6 more
doaj +5 more sources
Subduction initiation at relic arcs [PDF]
Geophysical Research Letters, 2015 AbstractAlthough plate tectonics is well established, how a new subduction zone initiates remains controversial. Based on plate reconstruction and recent ocean drilling within the Izu‐Bonin‐Mariana, we advance a new geodynamic model of subduction initiation (SI).
Wei Leng, Michael Gurnis
exaly +5 more sources
Geophysical Monograph Series, Page 97-104., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak +2 more
wiley +19 more sources
Differentiating induced versus spontaneous subduction initiation using thermomechanical models and metamorphic soles [PDF]
Nature Communications, 2021 The mechanism of subduction initiation is a key to modern plate tectonics. Here, using numerical modeling and geological observations, the authors find that the majority of active and paleo subduction zones with metamorphic soles likely formed during ...
Xin Zhou, Ikuko Wada
doaj +2 more sources
Reply to ‘Evidence for simple volcanic rifting not complex subduction initiation in the Laxmi Basin’ [PDF]
Nature Communications, 2020 Recently, Pandey et al. proposed relict subduction initiation occurred along a passive margin in the northwest Indian Ocean, however, Clift et al. questioned their evidence for subduction initiation, suggesting that simpler rifting-related processes ...
Dhananjai K. Pandey +2 more
doaj +2 more sources
Rapid subduction initiation and magmatism in the Western Pacific driven by internal vertical forces [PDF]
Nature Communications, 2020 The magmatic progression produced during the initiation of the Izu-Bonin-Marianas subduction zone took place rapidly over 1 million years, but it has been unclear why.
B. Maunder +3 more
doaj +2 more sources
Geosystems and Geoenvironment, 2022 Initiation of new subduction zones is an integral part of Earth's plate tectonics regime. It is generally accepted that the negative buoyancy of sufficiently old oceanic lithosphere provides the primary driving force for subduction initiation.
Philemon Lindagato +2 more
exaly +3 more sources
Kinematic Boundary Conditions Favouring Subduction Initiation at Passive Margins Over Subduction at Mid-oceanic Ridges [PDF]
Frontiers in Earth Science, 2021 We perform numerical modelling to simulate the shortening of an oceanic basin and the adjacent continental margins in order to discuss the relationship between compressional stresses acting on the lithosphere and the time dependent strength of the mid ...
A. Auzemery +7 more
doaj +2 more sources