龙泉大窑枫洞岩窑址出土的明代青瓷EDXRF研究

EDXRF STUDY ON MING DYNASTY CELADON'S SHERDS UNEARTHED FROM LONGQUAN FENG DONG ROCK

采用能量色散X荧光光谱(X-ray fluorescence spectrometer,EDXRF)对龙泉大窑枫洞岩出土的一批制作工整、纹样精细、釉色滋润、器形庞大的明代青瓷进行测试,并采用多元统计分析方法对结果进行了分析。从胎、釉化学成分入手,将测试结果与早前测试的北宋、南宋龙泉大窑青瓷以及南宋官窑青瓷瓷片的化学组成进行对比,发现从北宋到明代,龙泉青瓷釉中CaO含量显著下降,K2O+Na2O的含量逐渐增加。明代龙泉青瓷与南宋龙泉青瓷相比,CaO的含量平均下降了6.05%,碱金属氧化物总量平均上升1.51%。从胎体成分上看,龙泉大窑青瓷从南宋到明代制胎原料取用上具有连续性的特点。同时,探讨了釉色成因与化学组成之间的关系。

Using energy dispersive X-ray fluorescence spectrometry（EDXRF）,the chemical compositions of celadon sherds from the Ming Dynasty located at Feng Dong Rock in Longquan were measured,and the data were analyzed by multivariate statistical analysis.The CaO content in the glaze of celadon greatly declined and the contents of K2O and Na2O gradually increased from the Northern Song Dynasty to the Ming Dynasty.Comparing the celadon sherds from the Ming Dynasty and Southern Song Dynasty,the CaO con-tent in the glaze declines by an average of 6.05% and the K2O＋Na2O content increases by 1.51%.The raw material used to make the body of the Ming Dynasty celadon is consistent with that of celadon of the Southern Song Dynasty.In addition,the relationship be-tween the color of the glaze and chemical compositions is discussed.