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Evidence for the innermost inner core: Robust parameter search for radially varying anisotropy using the Neighbourhood Algorithm

Stephenson, Joanne; Tkalčić, Hrvoje; Sambridge, Malcolm


The model of cylindrical anisotropy in the inner core (IC) states that seismic rays traveling parallel to the Earth's rotational axis travel faster than those parallel to the equator. There have been continuing discrepancies in estimates of the strength and orientation of anisotropy, with some evidence suggesting that such a model may not be supported by available data. Here, we scrutinize the radial dependence of anisotropy within the IC, where the nature of anisotropy has been shown to change...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Journal of Geophysical Research: Solid Earth
DOI: 10.1029/2020JB020545
Access Rights: Open Access


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