1·Weak cemented fine quicksand layer deposited at the Tertiary Period and Jurassic Period is widely distributed in China's northeast and southwest regions.
第三纪和晚侏罗纪时期沉积的弱胶结粉细砂层在我国东北、南地区有广泛的分布。
2·Since the Tertiary period, the Red River Fault Zone suffered both of the sinistral movement and dextral movement, but the activities of the north and the south segment were different.
断裂带自第三纪以来，经历了左旋运动、右旋运动，南北两段的活动性有一定的差异。
3·The modem karst formation started in the old Tertiary Period, and matured in the Quatemary Period.
现代岩溶的形成开始于老第三纪，成熟于第四纪。
4·Since the Tertiary period, the ancient Song Huajiang-Liaohe drainage system has Undergone several large-scale alternations of lake and river.
第三纪以来，古松辽水系经历了几次大规模的河湖交替。