Luohe stage and Luohandong stage are two major sedimentation stages of desert facies, desert facies can be divided five sub2facies such as gobis, wades, dunes, inter-dunes, and desert lakes.

• 其中,洛河期和罗汉洞期是沙漠发育的两个主要时期,形成了旱谷、沙丘、丘间及沙漠湖等多类型沙漠亚相碎屑岩沉积。