Ocean-continent subduction cannot be initiated without preceding intra-oceanic subduction!
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
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Boninite and Harzburgite from Leg 125 (Bonin-Mariana Forearc): A Case Study of Magma Genesis during the Initial Stages of Subduction [PDF]
, 1992 Holes drilled into the volcanic and ultrabasic basement of the Izu-Ogasawara and Mariana forearc terranes during Leg 125 provide data on some of the earliest lithosphere created after the start of Eocene subduction in the Western Pacific.
Arculus, Richard J. +6 more
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Aseismic ridge subduction and flat subduction: Insights from three-dimensional numerical models
Earth and Planetary Physics, 2023 Flat subduction can significantly influence the distribution of volcanism, stress state, and surface topography of the overriding plate. However, the mechanisms for inducing flat subduction remain controversial.
Hui Zhao, Wei Leng
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Response of the mantle to flat slab evolution: Insights from local splitting beneath Peru [PDF]
, 2014 The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the (seismically) anisotropic properties and deformational regime of the mantle directly above the Peruvian ...
Barazangi +52 more
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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.
Gaoxue Yang +6 more
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Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]
, 2013 Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Eakin, Caroline M., Long, Maureen D.
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On the Thermodynamics of Subduction
Journal of Physical Oceanography, 1995 Abstract The thermodynamic processes attendant on the transfer of fluid between a surface mixed layer and a stratified thermocline beneath are discussed. For a parcel of fluid in the mixed layer to pass into the stratified thermocline—to subduct—it must be stratified by buoyancy input; this buoyancy can be supplied by local air–sea exchange and/or by ...
Marshall, D, Marshall, J
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An aseismic slip pulse in northern Chile and along-strike variations in seismogenic behavior [PDF]
, 2006 We use interferometric synthetic aperture radar, GPS, and seismic observations spanning 5 to 18 years to reveal a detailed kinematic picture of the spatiotemporal evolution of fault slip in a region corresponding to the 30 July 1995 M_w 8.1 subduction ...
Pritchard, M. E., Simons, M.
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Melting of subducted sediments reconciles geophysical images of subduction zones
Nature Communications, 2021 AbstractSediments play a key role in subduction. They help control the chemistry of arc volcanoes and the location of seismic hazards. Here, we present a new model describing the fate of subducted sediments that explains magnetotelluric models of subduction zones, which commonly show an enigmatic conductive anomaly at the trenchward side of volcanic ...
M. W. Förster, K. Selway
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Control of Subduction Zone Age and Size on Flat Slab Subduction
Frontiers in Earth Science, 2020 Flat slab subduction is an enigmatic style of subduction where the slab attains a horizontal orientation for up to several hundred kilometers below the base of the overriding plate.
Wouter Pieter Schellart
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