Sequence stratigraphic correlation and framework in the Dongying Formation, Gubei-Zhuanghai region, Shandong

The Dongying Formation sequences are divided into two long-term and four medium -term base-level cycles on the basis of cores, seismic sections and well logs. The stratigraphic correlation indicate that the differences in sequence development in different parts may be attributed to the differences of palaeogeographic settings and later tectonic uplifting and denudation in different parts.