辽南地区张夏组中上部高频率旋回地层特征明显，反映高频旋回特点。根据岩性、岩相及界面特征，对其进行划分。其中复州地区划分出４个四级旋回层序，２１个五级旋回层序，７０～８０个六级旋回层序；大连地区共划分出４个四级旋回层序，１９个五级旋回层序及７４个六级旋回层序。各级别旋回层均由相应的次一级旋回层序向上变浅、变厚、变粗的序列组成，其底部均以相应级别的间断—加深面为界。三、四级旋回层序具有区域对比意义。该期海平面具有高频振荡特点，为一复合海平面变化旋回。 The characteristics of middle-upper high-frequency cycle strata in Zhangxia Formation in southern Liaoning are obvious, reflecting the characteristics of high-frequency cycle. According to lithology, lithofacies and interface characteristics, it is divided. Among them, four fourth-level cycles, 21 fifth-level cycles and 70 ~ 80 sixth-level cycles are divided in Fuzhou area. Four fourth-level cycles and 19 fifth-order cycles Sequence and 74 six-stage cycles. All levels of the gyration layers are composed of a series of sequences of shallow, thickening and thickening of the corresponding sub-first-order gyration sequence, with the bottom of the corresponding levels discontinuous-deepening surface as the boundary. Third, four-level cycle sequence with regional significance. This period of sea level has the characteristics of high-frequency oscillation, a complex sea level change cycle.