Which process leads to landward barrier island migration where sea stacks exist?

💡 Explanation

Overwash is responsible because wave action carries sediment landward across the barrier via inundation induced Sediment Transport, therefore the barrier island will migrate landward; rather than accreting seaward due to sediment input from other sources.

• Which geographic outcome increases surrounding arable land degradation when overgrazing eliminates vegetation?
• Which consequence results when a barrier island's overwash threshold is exceeded?
• Which mechanism causes deep-focus earthquakes within a subducting oceanic plate?
• Which consequence occurs after long-term barrier island migration?
• Which outcome results when rapid lava extrusion creates a dome?
• Which process generates elevated methane release from thermokarst lake formation in arctic permafrost regions?