The Tertiary mainly belongs to fluvialdeposit where sandstone bodies develop extensively.
第三系主要为河流相沉积，砂体广泛发育。
2
The TL ages of 4 fluvialdeposit samples have been determined and the light bleaching is used in zeroing.
作者测定了4个河流冲击物的热释光年龄，用光晒退置零。
3
In the meantime, the Bohai Sea year answer the deposit that one year the ground accepts fluvial silt, deposit result makes again the Bohai Sea becomes shallow gradually.