Which outcome worsens when cooling felsic lava creates a lava dome with a high aspect ratio?

💡 Explanation

Increased pyroclastic flow results because dome aspect ratio intensifies gravitational instability, enabling cohesive blocks to detach, thereby triggering block-and-ash flows, rather than promoting stability or eruption changes, because cooler magma increases internal dome friction.

• Which mechanism initiates earthquake rupture propagation during strike-slip fault movement?
• Which topographic outcome results as acidic runoff saturates carbonate bedrock?
• Which topographic outcome occurs when permafrost thawing triggers widespread solifluction on a hillside?
• Which outcome results when arid playas experience deflation?
• Which outcome results when thermal expansion contrasts enhance weathering?
• Which outcome frequently occurs when a continental plate overruns a hydrated oceanic plate?