Using polarization microscope, scanning electron microscope, staining method and X-ray diffraction, the authors studied diagenetic pattern of volcaniclastic rocks of Nantun Formation.

• 摘要利用偏光显微镜、扫描电镜、染色法以及X-衍射分析等方法，查明南屯组火山碎屑岩成岩作用模式。