Which process accelerates when a river erodes the neck of an oxbow lake during flood stage?

💡 Explanation

When a river erodes the neck of an oxbow lake during flooding, channel avulsion occurs because the river finds a steeper, shorter path, abandoning its former course and causing rapid sediment deposition. Therefore avulsion is accelerated, rather than delta formation which happens at the mouth, terrace development requiring longer timescales, or karst formation requiring dissolution.

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