近年来盘龙城遗址的碳十四年代测定

Recent Radiocarbon Dates for the Panlongcheng Site

近年我们对盘龙城遗址杨家湾、小嘴地点考古发掘采集的炭样进行了碳十四测年。利用OxCal软件,并参考测年单位层位和出土遗物反映的相对年代关系,我们分地点进一步校正了这批碳十四测年数据。其中杨家湾地点起始年代最大概率密度落在公元前1490年,结束年代最大概率密度落在1230年;小嘴地点起始年代最大概率密度落在公元前1440年,结束年代最大概率密度落在1250年。本次碳十四测年工作为盘龙城遗址首次成系列的采样和检测,极大细化、补充了该遗址的碳十四测年数据,为构建盘龙城遗址的年代框架、探讨盘龙城与中原地区相关遗址之间的年代关系提供了新的资料。

In recent years,we have collected charred samples for radiocarbon dating from cultural deposits at the Yangjiawan and Xiaozui localities of the Panlongcheng site.Using the OxCal programe and by cross-checking the radiocarbon dates with relative dating of artifacts associated with charred samples,we were able to calibrate radiocarbon dates for each investigated locality.We have demonstrated that human occupation at Yangjiawan began as early as in 1490 BC and ended by 1230 BC.By contrast,human occupied at Xiaozui as early as in 1440 BC and abandoned the site by 1250 BC.We have,for the first time,reported groups of radiocarbon dates for the Panlongcheng site,which greatly improves the temporal resolution of the site and offers new data for establishing a finer chronological framework for the site as well as for exploring the chronological relationship between Panlongcheng and sites in the Central Plains.