Which mechanism causes differential erosion rates along the walls of a fjord during glacial retreat?

💡 Explanation

When a glacier retreats, differential erosion occurs because zones of varying lithology and fracture density within the fjord walls respond differently to weathering and erosion, causing uneven removal of rock. Therefore variations rocks and fractures result, rather than mechanisms related sea level, precipitation, or solar irradiance that affect the entire landform more uniformly.

• Which mechanism contributes to fjord formation during glacial retreat affecting isostatic crustal rebound?
• Which geological process is accelerated when permafrost thaws beneath an Arctic tundra oil pipeline?
• Which erosional process most directly contributes to the formation and enlargement of a cirque?
• Which mechanism causes the formation of an island arc system near oceanic trenches?
• Which process limits levee growth due to sediment discontinuities?
• Over time, which mechanism causes lateral migration dynamics in meandering river channels adjacent to floodplain lakes?