Tooth enamel oxygen "isoscapes" show a high degree of human mobility in prehistoric Britain

Abstract

A geostatistical model to predict human skeletal oxygen isotope values (δ18O p) in Britain is presented here based on a new dataset of Chalcolithic and Early Bronze Age human teeth. The spatial statistics which underpin this model allow the identification of individuals interpreted as non-local to the areas where they were buried (spatial outliers). A marked variation in δ18O p is observed in several areas, including the Stonehenge region, the Peak District, and the Yorkshire Wolds, suggesting a high degree of human mobility. These areas, rich in funerary and ceremonial monuments, may have formed focal points for people, some of whom would have travelled long distances, ultimately being buried there. The dataset and model represent a baseline for future archaeological studies, avoiding the complex conversions from skeletal to water δ18O values-a process known to be problematic.