Which outcome occurs when a lava dome obstructs pyroclastic flow channels?

💡 Explanation

Violent redirection and lateral blasts erupt because channel obstruction increases pressure, triggering sudden **pressure release**. Specifically, a lateral blast occurs rather than plume formation because the lava dome constrains upward expansion, therefore diverting released energy sideways.

• Which outcome occurs when differential slip exceeds friction limits on strike-slip faults traversing sedimentary strata?
• Which outcome results when a barrier island's longshore drift is interrupted?
• Which outcome occurs when increasing temperature reduces stream ice-dam duration in subpolar regions during glacier-surge events?
• Which outcome arises when weakened trade winds reduce upwelling off South America during an El Niño event?
• Which consequence develops within a fjord when a glacial ice dam suddenly collapses?
• Which process initiates cirque formation in mountainous terrain after prolonged snowfall?