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.

• Following extensive volcanic eruption, which process initiates pedogenesis?
• After volcanic caldera collapse, which process causes agglutinated vent spatter formation?
• Increased dissolution rates cause which outcome within karst topography?
• Which outcome typically occurs when hydraulic sorting decreases drastically upstream of a glacial lake?
• Which morphological outcome results when wave diffraction causes erosion unevenly alongside a headland?
• Which outcome occurs when sediments compacting on an oceanic plate get dragged down during subduction?