The process of gradual land formation through water deposition, or the land itself that is created by this process.
From Latin 'alluvio,' this English term appeared in the 16th century, originally in legal documents discussing property rights related to river-formed land. The meaning expanded to include the geological process itself.
Alluvion created one of the world's most productive agricultural regions—the Nile Delta is almost entirely alluvion, built up grain by grain over thousands of years of floods!
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