Which consequence results when fluvial levees fail under lateral stress?

💡 Explanation

When a levee fails during lateral erosion, the river can suddenly jump its banks; this process is called avulsion pushing flow rapidly to a new adjacent course, because this involves abrupt channel migration rather than plume spreading, or base level effects.

• Which outcome typically occurs when ephemeral stream systems encounter an abrupt decrease in gradient?
• Which condition inhibits stalactite formation slowest cave airflow?
• Which effect intensifies when geostrophic flow encounters coastal upwelling?
• Which process dominates when dune migration encounters vegetation?
• If intense seasonality strengthens chemical weathering on parent rock, which pedogenesis outcome accelerates?
• Which outcome is caused on a volcanic lahar's energy as it transitions from confined channel to unconfined plain?