etchplain Plain produced in a tropical or subtropical environment as a result of a phase of deep chemical weathering during tectonic stability, followed by one of erosion in which the weathered debris is stripped away. Etchplain relief reflects differences in the resistance of the bedrock to weathering and involves double planation.

etchplain A plain produced in a tropical or subtropical environment as a result of a phase of deep chemical weathering during tectonic stability, followed by one of erosion in which the weathered debris is stripped away. Etchplain relief reflects differences in the resistance of the bedrock to weathering and involves double planation.