Which risk increases when rapidly flowing volcanic lava transitions facies?

💡 Explanation

When fluid lava rapidly cools, viscosity increases and can induce flow diversion; therefore, this leads to easier channel avulsion which threatens settled areas, because the reduced flow stability decreases flow control, rather than other geomorphic changes.

• Which volcanic outcome develops due to isostatic rebound?
• Which pattern results when differential ice ablation occurs?
• Which consequence results when groundwater calcium carbonate saturation increases during seasonal pedogenesis?
• Which consequence results when thermocline depth increases anomalously during an El Niño event?
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• Which outcome occurs when rhyolitic lava cools rapidly?