Which outcome is most likely when increased magma viscosity obstructs pyroclastic ejection?

💡 Explanation

Stiff magma cannot fragment easily, therefore a lava dome forms within the volcanic vent driven by internal pressure building, stalling eruption, rather than tephra or ash ejection reaching the atmosphere because viscous obstruction inhibits fragmentation efficiency.

• Which thermal phenomenon significantly alters air density above asphalt surfaces on hot days?
• Along plate boundaries, which consequence results when lithospheric pressure decreases?
• Which geographic feature results when prevailing wind encounters an obstacle, reducing its velocity and causing increased alluvial deposition?
• Which process limits magma dome growth following eruption?
• Which outcome occurs when rapid glacial melting increases alluvial sediment deposition in a proglacial lake with seasonal thermal stratification?
• Which outcome results when stream avulsion shortens a river meander?