alluvial flat


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alluvial flat

[ə′lüv·ē·əl ′flat]
(geology)
A small alluvial plain having a slope of about 5 to 20 feet per mile (1.5 to 6 meters per 1600 meters) and built of fine sandy clay or adobe deposited during flood.
References in periodicals archive ?
The landscape of this catchment also consists of gently undulating to steep hillslopes with some alluvial flats, and an average annual winter-dominated rainfall of approximately 660 mm per year.
the average dollar per carat value and grade of the alluvial flats that have
gravel deposits that are located adjacent to the alluvial flats.
49 million carats within the alluvial flats drainage system historically
Verification of the tantalum grades in one portion of the alluvial flats where
including active river channels, alluvial flats and river terraces.