广西合浦独木舟放射性碳定年

Radiocarbon age of canoe from Hepu,Guangxi

为了确定在广西合浦县发现的古独木舟的年代，利用北京大学的小加速器质谱计对4个取自独木舟不同部位的木头样品进行了14C年代测定，结果表明，此独木舟的14C年龄为（365±20）BP．经14C-树轮年代校正曲线校正后，表明独木舟建造的日历年龄在1460-1580AD（2σ的置信区间）．

In order to confirm the canoe＇s age, four wood samples taken from different parts of canoe were measured by a compact accelerator mass spectrometry system at Peking University. The results showed that the 14C age of canoe was （365± 20） BP. With the calibration curve of tree ring, the range in possible calendar dates of building the canoe was from 1460 to 1 580 AD （within 2σ of conventional values）.