Which consequence results when sediment transport stalls on coastal islands?

💡 Explanation

Reduced sediment transport causes a decline in landward marsh migration because the natural cycle of sediment deposition sustaining these marshes diminishes via sediment starvation; therefore marsh boundaries erode inland, rather than accreting outward given adequate sediment.

• Which mechanism causes an increase in coastal mountain elevation as a continental plate overrides a subducting oceanic plate?
• Which landscape outcome is fostered by karst system dissolution?
• Which outcome results from hydraulic action eroding stacks?
• Which risk increases to barrier islands seaward when longshore sediment transport weakens?
• Which outcome occurs when a subducting slab dehydrates at intermediate depths (~100 km)?
• Which landform results when water percolates through weakened limestone?