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U-series dating of bone in an open system: The diffusion-adsorption-decay model

Sambridge, Malcolm; Grun, Rainer; Eggins, Stephen

Description

A new theory is described for the uptake of U in an open system applied to the dating of archaeological bones. Analytical solutions are obtained for the rate of radioactive decay of238U,234U and230Th as a function of position for the case where both238U and234U diffuse across a bone, and where external supply of234U is not in equilibrium with238U. The new theory constitutes a forward model for predicting238U,234U and230Th activity profiles across a bone given an age and diffusion coefficient....[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/64133
Source: Quaternary Geochronology
DOI: 10.1016/j.quageo.2012.02.010

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