bottom terrace

A landform deposited by streams with moderate or small bottom loads of coarse sand and gravel, and characterized by a broad, sloping surface in the direction of flow and a steep escarpment facing downstream.

Related terms:

• offshore terrace
• shoreface terrace
• Terrace
• phantom bottom
• kame terrace
• reef-front terrace
• Outwash
• Barchan
• bottom flow
• structural terrace