Which mechanism causes sea stack collapse accelerated by groundwater?

💡 Explanation

Hydrostatic pressure increases within cracks when saturated, advancing fracture expansion because water pressure exceeds lithostatic stress, therefore the stack weakens and collapses rather than resisting erosion through other weathering processes.

• Which outcome on land occurs when continental divergence stalls after lithospheric stretching?
• Which effect accelerates oxbow lake formation as a fluvial meander migrates laterally?
• Which topographic outcome occurs when permafrost thawing triggers widespread solifluction on a hillside?
• Which topographic feature increases following post-glacial isostatic rebound near a cirque basin?
• Which effect on global CO₂ levels results when El Niño suppresses coastal upwelling?
• Increased earthworm activity in loess results in which soil outcome?