The metamorphism characteristics and deformation characteristics of coal measure and coal beds have been studied systematically from thin section, SEM and X-ray diffraction analysis.

• 作者采用薄片、扫描电镜及X衍射诸手段对煤系及煤层的变质变形特征进行了系统的研究，确定了煤变质作用发生的时间，变质作用类型和变质作用温压条件；