石墨化碳质物质拉曼光谱温度计原理与应用
田野, 田云涛

Fundamentals and Applications of Raman Spectroscopy of Carbonaceous Material(RSCM)Thermometry
Ye Tian, Yuntao Tian
图1 碳质物质拉曼光谱特征、光谱拟合及经历了不同变质温度样品光谱信号
(a)光谱拟合示意图(据参考文献[19]修改),其中实线为原始光谱图像,虚线为分峰拟合结果:G(graphite)峰表示石墨峰,D(defect)峰表示缺陷峰;(b)不同峰期变质温度样品的拉曼光谱图像与对应温度计算结果;用于分析的石墨化碳质物质分别来自龙门山映秀断裂断层泥、松潘—甘孜地体东部的复理石、龙门山腹地志留纪云母片岩和胶北矽线石榴片麻岩样品;随着样品峰期变质温度增高,G峰信号增强、D峰信号减弱
Fig.1 Images of typical raman spectra, spectral fitting results and the spectra of samples that have experienced different peak metamorphic temperatures
(a) Images of typical raman spectra and spectral fitting results (modified after reference [19]), where the solid line is the original spectral signal, and the dash lines are the peak fitting results: The G-band represents the graphite peak and the D-bands represent defect peaks; (b) Raman spectra of samples with different peak metamorphic temperatures and corresponding temperature calculation results; The samples are fault gouge of the Yingxiu fault in the Longmenshan, Triassic flysch in the eastern Songpan-Ganzi terrane, Silurian mica schist in the hinterland of the Longmenshan, and metamorphic rocks in the Khondalite belt of North China; As shown, the G-band signal increases and the D-band signal decreases with the increase of sample peak temperatures