Words to Describe alluvion

How alluvion often is described ("________ alluvion")

• light
• deepest
• wide
• moist
• deep
• logged
• flat
• slow
• black
• fertile
• granitic
• low
• marine
• marshy
• best
• dry
• daily
• sandy
• gravelly
• sour
• timbered
• recent
• fine
• future
• muddy
• rich
• richest
• extensive
• soft
• ancient
• whole