238 U, 232 Th profiling and U-series isotope analysis of fossil teeth by laser ablation-ICPMS
U and Th concentration profiles in fossil hominid and faunal teeth have been measured by laser ablation ICPMS. These profiles record diverse modes of U and Th uptake, particularly within enamel, that can be broadly related to the state of sample preservation. Observed U profiles are in general inconsistent with existing diffusion-adsorption models developed for U-uptake in bone and teeth. Where the models appear applicable, calculated diffusion rates are several orders of magnitude smaller than...[Show more]
|Collections||ANU Research Publications|
|Source:||Quaternary Science Reviews|
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