双墩彩陶颜料来源的测试研究

Research on the Pigment Provenance of Painted Pottery Samples from Shuangdun Site

利用激光拉曼光谱、X射线衍射和波长色散X射线荧光光谱等方法对安徽蚌埠双墩遗址出土的5片彩陶和两块红色矿料进行测试分析,明确了彩陶红彩的主要物相为赤铁矿、α-石英、白云石和方解石;黑彩未使用矿物颜料,而是利用渗碳工艺中炭黑的自然效果。同时证明了综合利用这三种测试方法对于考古样品物相鉴定与成分分析的有效性。

Five painted pottery shards and two pieces of red mineral aggregate were analyzed, which were excavated from the Shuangdun site of Bengbu city, by Raman spectrometry, X-ray diffraction （XRD） and wavelength dispersive X-ray fluorescence spectrometry （WDXRF）. The results show that the main phases of red pigment of the painted pottery are hematite, α-quartz, dolomite and calcite. Meanwhile, it also clarifies that the black paint is infiltrating charcoal instead of mineral pigment. And furthermore the results verify the feasibility of those three analytical methods for phase identification and component analysis in archaeology study.