丁公遗址水生动物资源的锶同位素研究

The Strontium Isotope Analysis of the Aquatic Animal Resources of the Dinggong Site

遗址资源域分析（Site CatchmentAnalysis）是研究古代生业经济与人类活动模式的重要方法。目前国内外主要的研究手段是调查遗址周边人类可利用的自然资源。然而主观划定的遗址外（off-site）研究范围忽视了古代人类获取远距离资源的能力和不同聚落间的贸易交换活动，遗址内（on—site）出土物品的产地研究可以弥补这一缺陷。例如殷墟出土青铜器的铅同位素的研究表明，

By studying the animal remains unearthed at the Dinggong Site in Zouping County, Shandong, with the approach of strontium （Sr） isotope analysis, the origins of these animal remains could be detected. The results indicated that the 87Sr/86Sr ratio range of freshwater bivalves was sharply larger than that of the freshwater fishes, and the 87Sr/86Sr ratios of the terrestrial mammals and reptiles are ranging between them. This status reflected that in a rather long period, the residents of the Dinggong Site obtained freshwater fishes nearby the site, but the bivalves were fetched from the mountainous area of Mount Tai and Yimeng Mountains. The 87Sr/86Sr ratio of the osteoderrns of Chinese Alligator was the same as that of the fishes and local background value, showing that during the Longshan Age, Chinese Alligators were living in the North China area.