Which depositional outcome occurs when lava encounters glacial ice?

💡 Explanation

A jokulhaup flood occurs because lava causes rapid glacial melting; this produces a sudden, large volume of meltwater released catastrophically via the mechanism of glacial outburst flood. Therefore, it produces a huge flood, rather than streams, lakes or desert pavements which occur via different processes.

• Which hydrologic consequence results when extensive levee systems constrict a major river's floodplain during a large flood event?
• Which risk increases when rapidly melting permafrost destabilizes stream banks?
• Which risk increases when a lava dam's volume exceeds its yield strength?
• Which outcome accelerates when increased atmospheric carbon dioxide affects shallow marine carbonate platforms?
• Which outcome results when sediment accumulation overwhelms subsidence in prodelta lakes?
• Which outcome occurs when increased water saturation weakens subduction zones?