Skip navigation
Skip navigation

Age-independent seismic anisotropy under oceanic plates explained by strain history in the asthenosphere

Hedjazian, Navid; Garel, Fanny; Davies, Rhodri; Kaminski, Edouard


The depth of the oceanic lithosphere–asthenosphere boundary (LAB), as inferred from shear wave velocities, increases with lithospheric age, in agreement with models of cooling oceanic lithosphere. On the other hand, the distribution of radial anisotropy under oceanic plates is almost age-independent. In particular, radial anisotropy shows a maximum positive gradient at a depth of ∼70 km, which, if used as a proxy, indicates an age-independent LAB depth. These contrasting observations have...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2016.12.004


File Description SizeFormat Image
1-s2.0-S0012821X1630704X-main.pdf911.57 kBAdobe PDF    Request a copy

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

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator