The Liufengguang flysch here refers to the early Triassic flysch formation of the Liufengguang group in the East Qinling miogeosyncline.

• 正>留凤关复理石,系指东秦岭冒地槽早三迭世留凤关群的复理石建造。它位于宝成铁路的凤县至聂家湾一带(图1),向西延至西秦岭。