Which risk increases when rapid deposition decreases permeability in alluvial fans?

💡 Explanation

Debris flows are favored because water accumulates instead of infiltrating; the low permeability causes saturation. This increases pore water pressure, therefore decreasing soil shear strength, rather than entraining unsaturated sediment.

• Which consequence results when fault creep causes differential stress?
• Which mechanism enlarges fjords when sea level rises postglacially?
• Which consequence results when wave refraction around a headland ceases due to excessive deposition?
• Which mechanism initiates the sudden release of stored energy during an earthquake along a transform fault?
• Which net lateral displacement occurs when large-scale ocean currents cross hemispheres?
• Which outcome occurs when a heavy rain event saturates epikarst?