Isotopes: Atoms of the same element that can differ in their weights by having a different number of neutrons in the nucleus.
In archaeology, strontium isotope studies are primarily applied to human teeth to identify immigrants and study human mobility. The method has also been used in attempts to determine the provenience of other materials such as wooden beams, maize, wool, glass, and pottery; these exercises have achieved varying degrees of success depending upon the effects of contamination and the intrinsic isotopic variability in geologic materials.
The use of strontium isotopes to study human mobility was first proposed by Jonathon Ericson (1985), who noted the geographic variation in the stable isotopes of 87Sr/86Sr and the fact that this ratio is maintained essentially unchanged in the human skeleton from its value in the local environment with no apparent changes imposed by metabolism. When dental enamel develops during the first few years of life,...
- Buikstra, J. E., Price, T. D., Wright, L. E., and Burton, J. H., 2004. Tombs from the Copan acropolis: a life-history approach. In Bell, E. E., Canuto, M. A., and Sharer, R. J. (eds.), Understanding Early Classic Copan. Philadelphia: University of Pennsylvania Museum, pp. 191–212.Google Scholar
- Burton, J. H., and Price, T. D., 2013. Seeking the local 87Sr/86Sr ratio to determine geographic origins of humans. In Armitage, R. A., and Burton, J. H. (eds.), Archaeological Chemistry VIII. Washington, DC: American Chemical Society. ACS Symposium Series, Vol. 1147, pp. 309–320.CrossRefGoogle Scholar
- Price, T. D., and Burton, J. H., 2010. Isotopic evidence of the African origins and diet of some early inhabitants of Campeche, Mexico. In Tiesler, V., Zabala, P., and Cucina, A. (eds.), Natives, Europeans, and Africans in Colonial Campeche: History and Archaeology. Gainesville: University of Florida Press, pp. 175–193.CrossRefGoogle Scholar
- Price, T. D., Burton, J. H., Wright, L. E., White, C. D., and Longstaffe, F., 2007. Victims of sacrifice: isotopic evidence for place of origin. In Tiesler, V., and Cucina, A. (eds.), New Perspectives on Human Sacrifice and Ritual Body Treatments in Ancient Maya Society. New York: Springer, pp. 263–292.CrossRefGoogle Scholar
- Price, T. D., Burton, J. H., Fullagar, P. D., Wright, L. E., Buikstra, J. E., and Tiesler, V., 2008. Strontium isotopes and human mobility in ancient Mesoamerica. Latin American Antiquity, 19(2), 167–180.Google Scholar