Which outcome results when slow magma supply builds pressure inside a volcanic lava dome composed of andesite?

💡 Explanation

Sudden explosive pyroclastic density currents will occur because increasing internal pressure may exceed the dome's rock strength leading to catastrophic failure via the mechanism of gas expansion; therefore explosive eruption rather than effusive activity, or shield formation will happen.

• Which crustal outcome occurs when subduction stress overcomes locking?
• Which outcome follows increased topsoil disruption due to deflation?
• Which outcome occurs when a river's **sinuosity** is extremely high?
• Sediment starvation occurs when longshore current diminishes; which outcome accelerates dune erosion?
• Which outcome results when tephra deposition overwhelms drainage systems?
• Which outcome occurs when wave energy dissipates unevenly along a coastline featuring alternating headlands and bays?