The paper has summarized systematically evolutionary law in time and space on petrofacies and paleogeography of Late Paleozoic era in Northern China and distributive law of depositional systems.
根据华北晚古生代沉积岩系的环境标志,识别出29,
并为冲积扇、河流、三角洲、潮汐砂滩、碳酸盐
地等6
沉积体系。