foreset

developmental stage of tabular foreset laminae;

板状前积纹层发育阶段;

From some field investigations (like Lake Constance and Lake Mead), the shape of a delta is not a Gilbert delta.Slope evolution between foreset and bottomset is not sharp but smooth.

摘要:当河川流入湖泊或水，河川的密度是高于湖泊，这河川就会潜没入湖泊的底异重流。