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 ...
Mathieu Soret +2 more
exaly +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 +4 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
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
Tectonic and climatic implications of the Aleutian Arc initiation ≥56 million years ago [PDF]
Nature CommunicationsThe timing and origin of Aleutian subduction initiation remain poorly constrained, yet they are central to understanding late Paleocene to early Eocene plate tectonic reorganization in the Pacific and its possible climatic consequences.
K. Hoernle +13 more
doaj +2 more sources
Strike slip motion and the triggering of subduction initiation [PDF]
Frontiers in Earth Science, 2023 Plate tectonic reconstructions of three of the best-defined Cenozoic subduction initiation (SI) events in the western Pacific, Izu-Bonin-Mariana, Vanuatu, and Puysegur subduction zones, show substantial components of strike-slip motion before and during ...
Yida Li, Michael Gurnis
doaj +2 more sources
Subduction initiation at passive margins: Numerical modeling [PDF]
Journal of Geophysical Research, 2010 Subduction 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.
Taras Gerya, F O Marques
exaly +2 more sources
Can subduction initiation at a transform fault be spontaneous? [PDF]
Solid Earth, 2020 We present an extensive parametric exploration of the feasibility of “spontaneous” subduction initiation, i.e., lithospheric gravitational collapse without any external forcing, at a transform fault (TF).
D. Arcay +3 more
doaj +2 more sources
Horizontally forced initiation of the Izu-Bonin-Mariana subduction zone
Communications Earth & EnvironmentThe sparsity of a direct record for the moment of subduction zone initiation has led to various models describing the infancy and evolution of modern oceanic subduction systems.
Liang Liu +6 more
doaj +2 more sources
Do microcontinents nucleate subduction initiation?
, 2022 Subduction initiation is a pivotal process in plate tectonics. Models of subduction initiation include the collapse of passive margins, oceanic transform faults, inversion of oceanic core complexes, and ridge failure, but have ignored the potential effects of continental crust relics within the oceanic crust.
Mingshuai Zhu
openaire +4 more sources