Thailand is one of main countries producing tin in the world, and its ore deposit types are the shallow-seadeposit placer tin in main.
泰国是世界上产锡的主要国家之一，其矿床类型主要是浅海沉积型砂锡矿。
2
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。
3
The Baideng phosphorite deposit is of shallow-sea facies; while the Qinglongshao phosphorite belongs to continental facies.