Which outcome occurs when high-viscosity silica lava flows?

💡 Explanation

Extrusive domes form because viscous silica-rich lava possesses high resistance to flow; volcanic dome building is the mechanism. Therefore, lava accumulates near the vent, rather than spreading widely or forming ash clouds, due to its inherent properties preventing effusion.

• Which risk increases when seismic waves weaken a large landslide-prone slope immediately after a major earthquake?
• Which phenomenon causes enhanced precipitation downwind of major mountain ranges in humid mid-latitude zones?
• Which climatic effect weakens near South America during El Niño?
• Which risk increases when extensive groundwater depletion weakens karst bedrock?
• Which outcome occurs when increased glacial meltwater feeds into stream networks on permafrost landscapes?
• Which outcome occurs when groundwater depletion lowers the potentiometric surface in soluble bedrock?