Which outcome occurs when sediment delivery decreases to barrier islands?

💡 Explanation

Landward migration increases because diminished sediment reduces island resilience; the mechanism is overwash. Reduced sediment lessens the island's ability to withstand storm surges, therefore overwash occurs, rather than dune stabilization or salt marsh expansion which require sediment supply.

• Which outcome occurs when glacial flour is deposited?
• Inside large limestone caves, which process primarily establishes speleothem layering?
• Which risk increases during rapid snowmelt in mountainous permafrost regions experiencing solifluction?
• Which outcome results when excessive tephra accumulates quickly?
• Which pattern arises when wind optimally ablates exposed rock?
• Which mechanism influences stream course alignment in areas bisected by a transform fault?