二里头遗址出土动物来源初探——根据牙釉质的锶同位素比值分析

Preliminary Explorations on the Resources of the Cattle,Sheep and Goat in Erlitou Site——Based on the Strontium Isotope Analyses to Their Tooth Enamels

前言考古发掘和研究表明,河南偃师市二里头遗址的主体文化遗存属于二里头文化。该遗址是二里头文化时期一处超大型聚落遗址,绝对年代约为公元前1800年至公元前1500年。

The Erlitou Site located at Yanshi City,Henan Province is a large settlement site of Erlitou Culture dated to 3800-3500 BP.According to the zooarchaeological study results,the bones of five animal species such as dog,pig,sheep/goat and cattle found in this site belonged to domestic animals.Tooth enamel samples of fauna including 10 pigs,14 sheep/goats and 7 cattle from the Erlitou site were analyzed for strontium isotope ratio（87Sr/86Sr） by the thermal ionization mass spectrometry.In this paper,based on the local strontium isotopes ratio range determined by the mean 87Sr/86Sr ratios ± 2 σ of pig enamel samples,we find out that seven sheep and two cattle from Erlitou Site fell well outside the local strontium isotopes ratio range and were considered to be non-local.The extreme distribution of the outliers suggests they came from different geographical locations.