Lead isotope analyses reveal that the lead ores used in Western Han(WH)bronze mirrors unearthed in China originate from both northern and southern China,with a more diverse range of lead sources compared to Japanese Han mirrors.The northern Chinese lead may come from various ore deposits,whereas the southern Chinese lead primarily originates from the middle and lower reaches of the Yangtze River.The alloy compositions and metal sources of bronze mirrors produced at different casting centers appear to vary.WH mirrors found in Yunnan,Xinjiang,Afghanistan,Thailand,and Japan are likely to have been introduced from Chang'an,the capital of the Western Han Dynasty.Chang'an may have been the production center for exported mirrors during the Western Han period.The sources of lead in WH Wuzhu and Wangmang coins are similar to those in WH mirrors,mainly from northern China,although the production and circulation of bronze vessels appear to be more complex.
关键词
汉代/铜镜/生产/传播/铅同位素
Key words
Han Dynasty/Bronze mirror/Production/Circulation/Lead isotope ratio