Geography • Physical GeographyHard
Which of the following describes an incised or entrenched meander?
A. A river bend that migrates laterally across a wide flood plain through continuous erosion and deposition
B. A deeply cut meander loop formed when a river undergoes rejuvenation and cuts vertically into its floodplain✓ Correct Answer
C. A dried-up oxbow lake left behind after a river abandons its loop during a flood
D. A braided river channel choked with coarse sediment in an arid mountain valley
💡 Solution & Explanation
An incised or entrenched meander forms when a meandering river undergoes tectonic rejuvenation, causing it to cut vertically into its floodplain while retaining its winding loop geometry. Standard meanders move laterally across wide plains through continuous erosion on the outer bank and deposition on the inner bank without deep vertical incision. Geomorphology questions often link river rejuvenation and terraced valleys to tectonic uplift events.
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