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A Preisach method for estimating absolute paleofield intensity under the constraint of using only isothermal measurements: 1. Theoretical framework

Muxworthy, Adrian R; Heslop, David


The theoretical framework for a new nonheating method of determining absolute ancient magnetic field intensities (paleointensities) is described. The approach is based on a thermally activated Preisach model for interacting, randomly orientated single-domain grains with uniaxial anisotropy. The model includes theoretical features not accommodated by previous nonheating paleointensity methods; for example, it includes magnetostatic interactions, allows for variable cooling rates, and can...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Journal of Geophysical Research
DOI: 10.1029/2010JB007843


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