Abstract:
A study on the sedimentary features, facies and systems of the Carboniferous - Permian in Jiyang area reviews that barrier bar - lagoon system is the main sedimentary system in the Upper Carboniferous in Jiyang depression. Sequence stratigraphy is divided. The third grade sequence of the Upper Carboniferous has binary structure - the lower part is transgression tract, the upper part is high water level tract, while low water level tract is absent, and the third grade sequence of the Permian has ternary structure - the lower part is low water level tract, the middle is transgression tract, while the upper part is high water level tract.