The global consequences of subduction zone congestion

Grant number: DP150102887 | Funding period: 2015 - 2019

Completed

Abstract

This project will use a combination of 3D geodynamic modelling, plate kinematic reconstruction and geological and geophysical synthesis to determine how congested subduction zones influence plate kinematics, subduction dynamics and tectonic evolution at orogen and global scales. The project aims to deliver a transformation change in understanding the links between congested subduction, mantle flow, trench migration, crustal growth, transitions between stable convergent margin configurations and deformation in the overriding plates of subduction zones. Determining these relationships is significant because it will provide dynamic context to interpret the geological record of ancient convergen..

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Related publications (8)

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Improving subduction interface implementation in dynamic numerical models

Dan Sandiford, Louis Moresi

<jats:p>Abstract. This study focuses on methodological issues related to dynamic subduction zone modelling. Numerical models often..

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The Fingerprints of Flexure in Slab Seismicity

D Sandiford, LM Moresi, M Sandiford, R Farrington, T Yang

2020-08-01

Earthquake moment tensors in eastern Pacific (ePac) slabs typically show downdip tensional (DT) axes, whereas in the western Pacif..

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Geometric controls on flat slab seismicity

Dan Sandiford, Louis Moresi, Mike Sandiford, Ting Yang

2019-12-01

The relationship between intraslab seismicity and the dynamics of subduction is a subject of ongoing debate. Uncertainty surrounds..

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Contrasted East Asia and South America tectonics driven by deep mantle flow

Ting Yang, Louis Moresi, Michael Gurnis, Shaofeng Liu, Dan Sandiford, Simon Williams, Fabio A Capitanio

2019-07-01

East Asia and South America have both experienced long-term subduction since at least the Jurassic, but they have had contrasting ..

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Improving subduction interface implementation in dynamic numerical models

Dan Sandiford, Louis Moresi

2019-06-28

Numerical subduction models often implement an entrained weak layer (WL) to facilitate decoupling of the slab and upper plate. Thi..

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Mapping the Alaskan Moho

Meghan S Miller, Louis Moresi

2018-11-01

We present a series of Moho depth maps for the Alaskan region based on P receiver function estimates using data from all available..

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The structural evolution of the deep continental lithosphere

CM Cooper, Meghan S Miller, Louis Moresi

2017-01-16

Continental lithosphere houses the oldest and thickest regions of the Earth's surface. Locked within this deep and ancient rock re..

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Geodynamics of oceanic plateau and plume head accretion and their role in Phanerozoic orogenic systems of China

Peter G Betts, Louis Moresi, Meghan S Miller, David Willis

2015-01-01

We present three 3D numerical models of deep subduction where buoyant material from an oceanic plateau and a plume interact with t..

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