It is of an important indicating significance to reconstruct paleoenvironment and to study continentallake basin's varied water depth.
这些对恢复古环境，研究陆相湖盆水深变化具有重要的指示意义。
2
The result shows the deposition environment of the area is a continentallake deposition environment in partly damp and partly arid lower than cold geologic climate of temperature condition.
结果表明，沙三时期该区的沉积环境为半潮湿、半干旱较温凉的古气候条件下的陆相湖泊沉积环境。
3
Sodium carbonate deposits may be classified into three major types, Quaternary salt lake, Quaternarysand-covered playa and Tertiary continental detrital rock, all three having been found in China.