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.
当河川流
或水库时，若河川
密度是高于，这时河川就会潜
形成异重流。
积层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.
当河川流或水库时，若河川密度是高于，这时河川就会潜形成异重流。
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