Skip navigation
Skip navigation

Instability of a lithospheric step beneath western North Island, New Zealand

Salmon, Michelle; Stern, T A; Houseman, Gregory Austin; Evans, Lynn

Description

Lithospheres of different thicknesses are often juxtaposed by movement on a continental-transform boundary. Such a boundary with a step change in densities may trigger a gravitational instability as lateral pressure gradients are created where normal mantle lithosphere terminates against less dense asthenospheric mantle. Here we show, for plausible values of the lithospheric viscosity, a mechanism by which the thicker mantle lithosphere will drip off into the lower density asthenosphere. As the...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/74332
Source: Geology
DOI: 10.1130/G34028.1

Download

File Description SizeFormat Image
01_Salmon_Instability_of_a_lithospheric_2013.pdf1.36 MBAdobe PDF    Request a copy


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator