为了探讨岩浆侵入对煤结构参数的演化规律, 对淮南煤田朱集区13-4钻孔内岩浆接触带两侧的4个煤样品进行了X射线衍射和激光共焦显微拉曼光谱测试和分析。 结果表明: 煤的XRD光谱均显示出较高的背景强度, 在26°与42°附近出现明显的石墨衍射峰; 煤的拉曼光谱在1 000～2 000 cm-1波数范围内有两个明显的振动峰, 分别为宽缓的D峰(1 328～1 369 cm-1)和尖锐的G峰(1 564～1 599 cm-1)。 在岩浆侵入的影响下, 煤结构参数的变化与煤级的变化有很好的相关性。

The structural parameters evolution of coal due to the influence of intrusions of hot magma was investigated and analyzed. X-ray diffraction and laser confocal microscope Raman spectroscopy were used to test and analyze 4 coal samples undergoing varying contact-metamorphism by igneous magmas in borehole No.13-4 of Zhuji coal mine, Huainan coalfield. The result showed that coal XRD spectrum showed higher background intensity, with the 26° and 42° nearby apparent graphite diffraction peak. Two significant vibration peaks of coal Raman spectra were observed in the 1 000~2 000 cm-1 frequency range: broad “D” peak at 1 328~1 369 cm-1 and sharp “G” peak at 1 564~1 599 cm-1. With the influence of magma intrusion, the relationship between coal structural parameters and coal ranks was excellent.