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Pressure-Driven Poiseuille Flow: A Major Component of the Torque-Balance Governing Pacific Plate Motion

Stotz, I. L.; Iaffaldano, Giampiero; Davies, D. Rhodri


The Pacific Plate is thought to be driven mainly by slab pull, associated with subduction along the Aleutians-Japan, Marianas-Izu-Bonin, and Tonga-Kermadec trenches. This implies that viscous flow within the sub-Pacific asthenosphere is mainly generated by overlying plate motion (i.e., Couette flow) and that the associated shear stresses at the lithosphere's base are resisting such motion. Recent studies on glacial isostatic adjustment and lithosphere dynamics provide tighter constraints on the...[Show more]

CollectionsANU Research Publications
Date published: 2018-01-08
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1002/2017GL075697
Access Rights: Open Access


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