Which outcome occurs when a lava dome collapses?

💡 Explanation

A lava dome collapse leads to pyroclastic flow generation because gravitational instability causes the dome material to rapidly descend as a density current down the volcano's slopes; therefore, pyroclastic flows are created, rather than other volcanic landforms forming.

• Which outcome occurs when a meander stream encounters a resistant rock layer during downcutting?
• Which outcome relating to river stream incision occurs when tectonic uplift concentrates near a major river's headwaters?
• Which mechanism initiates seafloor spreading at mid-ocean ridges?
• Which mechanism causes an avulsion event when a river's levee system is overwhelmed by sediment deposition?
• Which hazard escalates when seawall undermining failure progresses?
• Which pedogenic effect on soil formation occurs predominantly due to freeze-thaw weathering?