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通过对苏皖地区黄马青组的沉积学研究，确认其为发育于前陆盆地内的大型海退河流－ 三角洲沉积体系。根据岩石成因类型划分了８ 个微相，并对其所反映的沉积环境进行了分析。整个层序自下而上可分为前三角洲、三角洲前缘及三角洲平原３ 个亚环境，并对亚环境内的微环境进行了讨论。
Through the sedimentology study of the Huangmaqing Formation in the Jiangsu-Anhui area, it is confirmed that it is a large-scale retrograde stream-delta sedimentary system developed in the foreland basin. According to the types of rocks, 8 microfacies are divided and their sedimentary environment is analyzed. The whole sequence can be divided into three sub-environments of the former delta, the delta front and the delta plain from bottom to top, and the micro-environment in the sub-environment is discussed.