The study of the constituents of teeth, dentine and enamel, by a combi
nation of ESR and U-series techniques offer unique constraint on the h
istory of uranium migration into these materials. Our results imply th
at it is inappropriate to assume a simplified U-uptake model for neith
er the components of a single tooth nor for the faunal remains of a gi
ven site. However, the combination of both methods may provide a new t
echnique for establishing reliable chronologies for archaeological/Qua
ternary sites of up to several hundred thousand years.