Chemical characters of Dabao copper ore in Pengzhou and their relationship with Jinsha bronze wares of Chengdu,China

This paper discusses the relationship of the Jinsha bronze wares with the Dabao copper ore in Pengzhou of Chengdu.Pengzhou is located in the main core area of the Gushu(ancient Sichuan) civilization and near the Minjiang drainage area that was the migrating route of the Gushu civilization.The authors measure the main metallic elements and Pb isotope of the ores,gangues and blast furnace cinders of the Dabao copper ore,and compare the obtained data with the main metallic elements and Pb isotope of the Jinsha bronze wares,the result shows that the main metallic elements content and Pb isotope ratio of the Dabao copper ore are different from that of the Jinsha bronze wares.It is concluded that the copper ore of the Jinsha bronze wares unlikely come from the Pengzhou copper ores which is represented by the Dabao copper ore.