Sedimentary formation and tectonic cycle of the Jurassic Northeastern Jiangxi continental basin

This paper deals with the formation types and sequence of the Lower Jurassic Linshan Formation, Middle Jurassic Luo'ao Formation and Upper Jurassic to Lower Cretaceous Wuyi Group and summarizes the development stages of the Jurassic continental basin. The tectonic movements in northeastern Jiangxi may be divided into three subcycles, i.e. the Indosinian subcycle (including the Jinzi movement of phase I and Nanxiang movement of phase II), early Yanshanian subcycle and late Yanshanian subcycle, and four tectonic phases, of which phase III of the Yanshanian was most intense, causing the relief in the study area which rises in the east and descends in the west to rise in the west and descend in the east.