Abstract: The carbonated tree in volcanic breccia has been studied through high resolution transmission electronic microscopy (HRTEM), X-ray powder diffraction and laser Raman spectroscopy. The HRTEM imagine shows that it was the product of transition from micro-column to flexible crape graphite. The D-peak position is 1359.7～1369.2cm^-1. The O-peak position is 1601.5～1603.4cm^-1. Its second Raman spectroscopy reflect its crystallinity and the peak area ratio A_D/(A_D+A_O) reflects the crystal size (L_a). The estimated L_aof carbonated tree in volcanic tree is 7.6～11.8nm.

Key words: carbonated tree, HRTEM, X-ray powder diffraction, laser Raman spectroscopy, degree of graphitization

摘要： 对浙江温岭火山角砾岩中的碳化树木进行了高分辨电子显微镜、X粉晶衍射和激光拉曼光谱研究。高分辨电子显微像表明火山角砾岩中的碳化树木相当于微柱石墨—柔绉石墨过渡阶段。碳化树木的一级拉曼光谱D峰波数在1359.7～1369.2cm^-1之间，O峰波数在1594.5～1603.4cm^-1之间。根据峰面积比A_D/(A_D+A_O)计算得出其L_a在7.6～11.8nm之间，与高分辨电子显微像观察结果一致。

关键词: 碳化树木, 高分辨电子显微镜, 粉晶X射线, 激光拉曼光谱, 石墨化程度