Provenance study of Yayoi period bronze object using lead isotope method

本研究的目的是在考古学和历史学方法的基础上，运用科学的方法对日本早期的青铜文化进行研究。日本的青铜文化始于公元前3世纪左右。从那时起，青铜文化在日本得到了发展。利用青铜器的铅同位素比和青铜器的化学成分等科学方法可以解释青铜器的扩张过程。主要结论如下：日本青铜器引进的第一阶段是从韩国青铜器开始的。从那时起，中国北方青铜出现在整个弥生时期。在古方时期之后，中国南方青铜被带到日本。这一趋势在北九州和近海地区已经确立，但另一部分则不太清楚。作为下一步的研究工作，不仅对中心地区的样本进行测量，而且对偏远地区的样本进行测量也是值得的。

The aim of this research work is to make clear the early bronze culture in Japan using scientific method in addition to the archaeological and historical methods.Bronze culture in Japan started at around BC3 century. Since that time, the bronze culture developed in Japan. The expanding process can be explained with the scientific methods using lead isotope ratio and chemical composition of bronze objects.The results is concluded roughly as follows : At the first stage of introduction of bronze in Japan was started from Korean bronze. Since then, North Chinese bronze came in whole of the lest of Yayoi period. After Kofun period, Southern Chinese bronze was brought in Japan. This trend is established in North Kyushu and Kinki area, but the other part was not so clear. As next research work, it will be worthwhile to measure the samples from not only center part but also the remote region.