Which mechanism explains concentrated stream erosion near fault lines?

💡 Explanation

Preferential flow erosion concentrates stream power along weakened fault zones because fracturing increases permeability. Therefore, more erosion occurs at fault lines, rather than evenly across the landscape, due to concentrated water flow.

• Which outcome occurs when glacier calving increases sharply?
• Upon cliff retreat along coastlines, which geologic formations most likely experience increased mechanical weathering?
• Which erosional outcome is intensified when meltwater becomes trapped within a cirque basin under freezing temperatures?
• Which outcome occurs when heavy rainfall saturates unstable overburden above karst bedrock?
• Which outcome results when channel avulsion breaches a levee?
• Which outcome occurs when high acidity inhibits weathering and bioturbation?