Strontium isotope geochemistry of archaeological human tooth enamel excavated from Jeonju, southwestern Korea
Strontium isotopes of archaeological skeletal tissues have provided useful information to trace past human migration. This study presents strontium isotope data of human tooth enamel excavated from a group of medieval Joseon tombs in Jeonju, southwestern Korea. The enamel samples are divided into two isotopic populations yielding average 87Sr/86Sr of 0.71077 ± 0.00031 (group I) and 0.71233 ± 0.00032 (group II). Considering the gender distribution, 87Sr/86Sr ratios of group I may better represent the local value of biologically available strontium. Contrasting 87Sr/86Sr patterns of acetic acid extracts and residues of enamel fragments from a male of group I and a female of group II suggest their different residential mobility during childhood. The 87Sr/86Sr range of group I enamel is considerably lower than that reported from basement granites in the Jeonju area. Strontium in this group may have been conveyed from rainfall, and soluble soil fractions composed mainly of low-Rb/Sr minerals such as plagioclase.
Keywordsstrontium isotope tooth enamel Joseon tomb biologically available strontium mobility
Unable to display preview. Download preview PDF.
- Cheong C.-S., Jeong Y.-J., and Kwon S.-T., 2014, Correction of spike contribution for strontium isotopic measurement by thermal ionization mass spectrometry: A test for spike-standard mixed solutions. Journal of Analytical Science and Technology, doi:10.1186/s40543- 014-0026-1.Google Scholar
- Ericson J.E., 1985, Strontium isotope characterization in the study of prehistoric human ecology. Journal of Human Evolution, 14, 503–514.Google Scholar
- Ha, D.R. and Lee J.J., 2012, Appendix IV, Reports on the excavation of the Deokdong site, Wanju. Jeolla Research Institute of Cultural Heritage, 487–541. (in Korean)Google Scholar
- Hillson S., 1986, Teeth. Cambridge University Press Cambridge, 373 p.Google Scholar
- Jeon S.-R. and Chung J.-I., 2005, The Sr and Pb isotopic and geochemical properties of the atmospheric bulk deposition of Jeonju, Gunsan, and Namweon areas. Economic and Environmental Geology, 38, 463–479. (in Korean with English abstract)Google Scholar
- Knudson K.J., Williams H.M., Buikstra J.E., Tomczak P.D., Gordon G.W., and Anbar A.D., 2010, Introducing d88/86Sr analysis in archaeology: a demonstration of the utility of strontium isotope fractionation in paleodietary studies. Journal of Archaeological Science, 39, 2352–2364.CrossRefGoogle Scholar
- Na C.-K., Lee I.-S., and Chung J.-I., 1997, Petrogenetic study on the foliated granitoids in the Chonju and the Sunchang area (II)–In the light of Sr and Nd isotopic properties. Economic and Environmental Geology, 30, 249–262. (in Korean with English abstract)Google Scholar
- Slovak N.M. and Paytan A., 2011, Application of Sr isotopes in archaeology. In: Baskaran, M. (ed.), Handbook of Environmental Isotope Geochemistry. Springer, New York, p. 743–768.Google Scholar