shale

  1. Home
  2. top of the aat hierarchies
  3. Materials Facet
  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by composition]
  7. inorganic material
  8. rock (inorganic material)
  9. sedimentary rock
  10. [sedimentary rock by composition]
  11. argillaceous rock
  12. shale
Scope note
Argillaceous sedimentary rock formed by the compaction of clay, silt, or mud; it may be gray, red, brown, or black. It is finely laminated and weak along planes allowing the rock to split easily.
shale
Accepted term: 03-Feb-2025