the.com/alluvium
Geology's hand-me-downs: dirt the river robbed from somewhere upstream and dumped here.
means The loose silt, sand, and gravel that flowing water deposits as it slows down over time.
from From Latin alluere, to wash against — luere meaning to wash, smuggled in by water doing exactly that.
Free farmlandNile and Ganges valleys are basically alluvium banquets.
Geologically youngIt's the freshest stuff, still unhardened into rock.
Gold's addressPlacer miners pan alluvium for washed-down nuggets.