Which mechanism limits delta formation when rapid sea-level rise inundates an alluvial plain?

💡 Explanation

When rising sea levels inundate an alluvial plain, estuarine sediment trapping occurs because the newly formed estuaries act as sinks that capture river sediment, leading to a reduced sediment supply available for delta construction. Therefore, sediment trapping within the newly formed estuary limits delta progradation, rather than wave action, bioerosion, or isostatic rebound which require different environmental conditions or long-term geological processes.

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