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High resolution LA-ICP-MS mapping of U and Th isotopes in an early Pleistocene equid tooth from Fuente Nueva-3 (Orce, Andalusia, Spain)

Duval, Mathieu; Aubert, Maxime; Hellstrom, John Charles; Grun, Rainer


We have produced detailed maps of U and Th isotopes for three cross-sections of an Early Pleistocene equid tooth from the archaeological site of Fuente Nueva-3 (Orce, Andalusia, Spain). This permits us to visualise, for the first time, U migration processes in 3 dimensions. The tooth shows a concentration gradient from the top to the base, indicating the U profile had not equilibrated after >1 Ma. The spatial pattern of230Th/234U and234U/238U indicates complex U-mobilisation processes over the...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Quaternary Geochronology
DOI: 10.1016/j.quageo.2011.04.002


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