西汉狮子山楚王陵出土玉器中的石墨包裹体

Graphite Inclusions in the Excavated Jades from the Mausoleum of the King of Chu State in Western Han Dynasty

利用激光拉曼光谱技术,研究了徐州狮子山西汉楚王陵出土的部分玉衣片和玉棺片中的黑色点状固体包裹体。拉曼光谱谱图显示其主要的拉曼散射峰位于1360("D"峰)、1582("O"峰)、2440、2735、3250cm-1附近,与石墨拉曼散射峰的典型峰位一致,显示黑色包裹体为石墨。石墨拉曼光谱中的"D"峰和"O"峰的相关信息可敏感地反映其主岩的形成条件,因此对古玉器玉料中石墨包裹体拉曼光谱的深入研究可以对玉料的产地来源进行限定。

Laser Raman Spectroscopic study is used to identify the black dot inclusions in the excavated jades from the mausoleum of the king of Chu state in the Lion Mountain of Xuzhou. The results show that Raman shifts are located around 1 360 （＂D＂ peak）, 1 582 （＂O＂ peak）, 2440, 2735 and 3 250 cm^-1, respectively, indicating that the black dot inclusions are graphite. Graphite can sensitively reflect the formation condition of the host rock by the position, intensity ratio, etc, of the ＂D＂ peak and ＂O＂ peak in its Raman Spectrum. So, the Laser Raman Spectroscopic study of the graphite inclusion in ancient jade can provide some messages for the study of the origin of jade material.