Which outcome results when a rhyolitic lava dome undergoes rapid degassing?

💡 Explanation

A violent pyroclastic eruption occurs because rapid degassing increases internal pressure via Vesiculation as dissolved gases expand, therefore explosive fragmentation causes a pyroclastic flow rather than effusive eruption or other volcanic deposits.

• Which phenomenon limits earthquake rupture propagation during subduction?
• Which outcome is accelerated as cirque glaciers thaw?
• Which landscape outcome develops because subsurface limestone dissolution accelerates?
• Which process causes coarser sediment fractions to deposit proximally within an alluvial fan?
• Which geological feature’s formation follows the cutoff of a river meander loop alongside a floodplain lake?
• Which consequence results when caldera-forming eruption generates pyroclastic surge?