Rare Earth Elements Geochemistry of Ceramics Excavated from Tongguanyao Site, China

Rare earth element (REE) compositions in ceramics from the Tongguanyao site (TGY) of China were determined by the inductively coupled plasma-mass spectrometry (ICP-MS) to compare their sources. Total REE concentrations of 14 samples range from 120.9 to 453 mu g.g-1, with an average value of 228.5 mu g.g-1. The inconformity of chondrite-normalized REE patterns suggests that pottery and porcelain have different material sources. The normalized REE patterns indicates similar trends between the raw materials and ceramics in the same period, as a higher concentration of REEs is presented in the ceramics, suggesting that REEs enriched during the production process of ceramics with high temperature. A different chondrite normalized REE pattern between the reticulated soil and ceramics implies that they had not a single source, probably mixed material sources.CPCI-S(ISTP)mlj1214@163.com810-8132