Which outcome occurs when a cooled lava flow's surface prevents gas escape?

💡 Explanation

Internal pressure buildup occurs because vesicle nucleation requires volume, and a cooled, solidified surface inhibits gas dispersal; this causes increased internal pressure ultimately leading to dangerous explosive eruptions, rather than gradual degassing.

• Which mechanism explains elevated mercury levels in soils near strike-slip faults?
• Which risk increases when rapidly flowing volcanic lava transitions facies?
• Which effect accelerates coastal erosion when sustained offshore winds induce upwelling?
• Which risk increases along a floodplain when alluvial mining removes substantial sediment?
• Which outcome results when thermohaline circulation weakens near the Greenland ice sheet melt?
• Which mechanism causes uplift when strike-slip fault experiences restraining bend?