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  2. top of the aat hierarchies
  3. Materials Facet
  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by composition]
  7. combination inorganic/organic material
  8. soil
  9. [soil by composition or origin]
  10. alluvium
Scope note
A deposit of earth, sand, and other transported matter left by water flowing over land not permanently submerged; chiefly applied to the deposits formed in river valleys and deltas.
Accepted term: 15-Jul-2024