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
岩系的环境标志,识别出29个相,归并为冲
、
流、三
洲、潮
、碳酸盐台地等6个沉体系。
