Which event results when rapidly cooling viscous lava obstructs volcanic vents?

💡 Explanation

A lava dome forms via effusive eruption because high viscosity prevents lava spreading; therefore, magma piles up near the vent, rather than forming a lava flow over long distances.

• Which outcome is directly caused by coastal upwelling events along continental margins?
• Which risk increases when tephra accumulation overwhelms lahars?
• Which geologic outcome primarily occurs along a transform plate boundary?
• Which outcome is directly caused by convergence within subtropical gyres impacting marine ecosystems?
• Which outcome occurs when glacial meltwater influences longshore drift?
• Which outcome occurs when mineral saturated water drips?