submerged-upland soil

submerged-upland soil
   Mineral or organic soil that primarily formed in a subaerial setting but is now under water, commonly in intertidal or subaqueous settings. Inundation could occur for various reasons (e.g., sea-level rise in a marine or estuarine system or ponding from a dam). In intertidal settings, tidal marsh soils may occur above former subaerial soils (see submerged-upland tidal marsh). In subaqueous settings (permanently submerged), submerged-upland soils typically occur below a cap of subaqueous soil forming in the subaqueous environment.
   SW

Glossary of landform and geologic terms. 2013.

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