Syndeposition developed in Jiyang Sag can be classified, mainly based on gravity and the form of sinking, into syndeposit-anticline and syndeposit-nosing structure during the formation and development period.

• 济阳坳陷发育的同沉积背斜构造可分为同沉积背斜和同沉积鼻状构造，它们在形成和发展中，重力起主导作用，滑塌是主要形式。