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
Hot versus cold subduction initiation. [PDF]
Natl Sci RevInitiation of a new subduction zone could act in two different ways, forming either a hot or cold incipient subduction channel with contrasting geological records.
Li ZH.
europepmc +3 more sources
The location of compression-induced subduction initiation controlled by structural versus thermal inheritance [PDF]
Communications Earth & EnvironmentSubduction initiation is a pivotal process in the Wilson cycle, yet its mechanisms remain elusive. Using 3D coupled thermo-mechanical and surface processes models, we investigated how the duration of the plate motion reversal from rifting to plate ...
Éva Oravecz +2 more
doaj +2 more sources
Ocean-continent subduction cannot be initiated without preceding intra-oceanic subduction! [PDF]
Frontiers in Earth Science, 2022 The formation of new subduction zones is a key element of plate tectonics and the Wilson cycle, and many different controlling mechanisms have been proposed to initiate subduction.
Alexander Koptev +4 more
doaj +8 more sources
Boron isotopes in boninites document rapid changes in slab inputs during subduction initiation [PDF]
Nature Communications, 2022 The geochemical record of subduction initiation is still not well understood, despite >50 years of study. Here, the authors use boron isotopes in Izu-Bonin boninites to document rapid changes in slab inputs to melting at the start of subduction, related ...
Hong-Yan Li +4 more
doaj +2 more sources
Subduction initiation along transform faults: The proto-Franciscan subduction zone [PDF]
Lithosphere, 2011 The initiation of subduction is a process that cannot be observed directly but must be inferred from the rock record after subduction is well established. There are many approaches possible to infer the origin of subduction zones that are still active, but paleosubduction zones present special challenges, since their geodynamic setting can no longer be
John W. Shervais, Sung Hi Choi
openalex +2 more sources
Rapid shear zone weakening during subduction initiation. [PDF]
Proc Natl Acad Sci U S ASubduction zones play a pivotal role in the mechanics of plate tectonics by providing the driving force through slab pull and weak megathrusts that facilitate the relative motion between tectonic plates. The initiation of subduction zones is intricately linked to the accumulation of slab pull and development of weakness at plate boundaries
Li Y, Gurnis M.
europepmc +3 more sources
Anomalous Subduction Initiation: Young Under Old Oceanic Lithosphere [PDF]
Geochemistry, Geophysics, Geosystems, 2021 When subduction initiates along a transform fault, it is often interpreted that the older and therefore denser oceanic lithosphere should evolve into the downgoing plate.
Lulu Zhang +2 more
doaj +4 more sources
Subduction initiation at passive margins: Numerical modeling [PDF]
Journal of Geophysical Research: Solid Earth, 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.
K. Nikolaeva, T. V. Gerya, F. O. Marques
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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 ...
Soret, Mathieu +8 more
openaire +5 more sources