What do incised meanders in rocks and meanders in plains of alluvium indicate?

 Question.

What do incised meanders in rocks and meanders in plains of alluvium indicate?

Answer. 

Sinuous movement of river in hard rock surface is called incised or entrenched meanders while the sinuous movement of the river in alluvial plains is called simply meander. The meandering of channels is formed when it is an old stage of the lifecycle. In the old stage of the erosional cycle, they are not able to erode the river bed further, and hence incised meanders in rocks and meanders in plains indicate the original land surface [ bed rock] where it has developed.

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