Abstract: Palaeoclimatical cyclic transformation which is an important factor to control the development of terrigenous sequence was caused by the orbit cycle (namely, Milankovitch hypothesis).

• 文摘:古气候是影响陆相层序发育的一个重要因素，其周期性变化是源于天文旋回的驱动力(即米兰柯维奇假说)。