Overview

A-subduction


'A-subduction' can also refer to...

A-subduction

A-subduction

The initiation of subduction by crustal extension at a continental margin

A simple analytical approximation to the temperature structure in subduction zones

A tensile, flexural model for the initiation of subduction

A hybrid boundary-integral/thin-sheet equation for subduction modelling

Numerical modelling of seismic wave propagation along the plate contact of the Hellenic Subduction Zone—the influence of a deep subduction channel

‘Subduction Style’ Magmatism in a Non-subduction Setting: the Colville Igneous Complex, NE Washington State, USA

The Demir Kapija Ophiolite, Macedonia (FYROM): a Snapshot of Subduction Initiation within a Back-arc

Bending mechanics and mode selection in free subduction: a thin-sheet analysis

Effect of margin curvature on plate deformation in a 3-D numerical model of subduction zones

Interplay between subduction and continental convergence: a three-dimensional dynamic model for the Central Mediterranean

Cenozoic Volcanism in Tibet: Evidence for a Transition from Oceanic to Continental Subduction

A complex, young subduction zone imaged by three-dimensional seismic velocity, Fiordland, New Zealand

A multiphase seismic investigation of the shallow subduction zone, southern North Island, New Zealand

Stresses and strains in a twisted subduction zone—Fiordland, New Zealand

A three-dimensional image of shallow subduction: crustal structure of the Raukumara Peninsula, New Zealand

Deformation and stress change associated with plate interaction at subduction zones: a kinematic modelling

The influence of plate kinematics, convection intensity, and subduction geometry on the Earth’s upper-mantle dynamics in the vicinity of a subduction zone

 

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The movement of one continental lithospheric plate under another (subduction) in a collision zone, with the separation of part or all of the upper crust from the lower crust and mantle. The denser material subducts normally whilst the buoyant material can underthrust or overthrust the crust of the overriding plate. A-subduction, named after O. Ampferer, has also been called ‘delamination’, and is contrasted with B-subduction, named after Hugo Benioff, in which oceanic lithosphere subducts. A-subduction is postulated to involve shortening of a maximum of only a few hundred kilometres, whereas B-subduction can recycle thousands of kilometres of oceanic crust and upper mantle.

Subjects: Earth Sciences and Geography.


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