Salt water has more buoyance than fresh water.

咸水比淡水。

Relative higher concentration of gammacerane in Songliao fresh-brackish lacustrine environment is connected with water column stratification caused by event of linking between lacustrine and sea.

松辽盆地淡水-微咸水环境较高含量的伽马蜡烷表明其形与湖海沟通起的水体层事件有关。