Xiwubi site at Jingxian county is an important metallurgy site from Erlitou to Erligang period.In 2023,there were some activity ground surfaces of Erligou period discovered at the east part of the site,which provide important materials for study the metallurgical technology and spatial pattern at Xiwubi.The properties of each surface were studied by means of systematic sampling,chemical analyzing and spatial distribution of chemical components.It shows that some areas of surface 1 and 2 on upper part are rich in CuO,where are likely related to copper smelting.However,surface 3 and 4 have no high CuO zones and are similar to the natural sediment,where may not be directly involved in copper smelting activities.There are also high P2O5,Fe2O3,CaO,high MgO and high SiO2 zones on surface 1 and 2.Given the previous studies,the relationships between chemical components and human activities at this site has been investigated.
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