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1·The Tertiary mainly belongs to fluvial deposit 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 fluvial deposit 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.

同时，渤海年复一年地接受河流泥沙的沉积，沉积的结果又使得渤海逐渐变浅。