Raman spectroscopy on carbonaceous matter reconstructs the progressive path of graphitization during granulite facies metamorphism in the Variscan collisional belt of the southern Bohemian Massif. In this area, heating to 650–750 °C gradually altered the graphite microstructure, attributed to a metamorphic field gradient. Late low-pressure and high-temperature metamorphism at temperatures above 800 °C as well as advective heat transport due to rising granulite diapirs improved the graphite lattice ordering significantly. Numerical parameters derived from the Raman spectra of carbonaceous matter, in particular the G-band width and the S2-band dispersion map metamorphic field gradients in high-grade metamorphic terrains.

碳质物质的拉曼光谱重建了南波希米亚地块 Variscan 碰撞带麻粒岩相变质过程中石墨化的渐进路径。在该区域，由于变质场梯度，加热到 650-750°C 逐渐改变了石墨微观结构。温度高于 800 °C 的晚期低压和高温变质作用以及由于麻粒岩底辟上升引起的对流热传输显着改善了石墨晶格有序性。从碳质物质的拉曼光谱导出的数值参数，特别是 G 波段宽度和 S2 波段色散图在高等级变质地形中的变质场梯度。