noun
EXAMPLES FROM CORPUS
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The soils are developed on freshwater alluvium .
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The soils are developed on marine or estuarine alluvium found between the normal high-water mark and the limit of highest spring tides.
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Using open cut excavation where possible, Nuttall has moved about 26,000 cu m of alluvium and gravel.
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Usually floodplains are not veneers of alluvium explicable by lateral channel movements, but considerable thicknesses smoothing over more complex relief.