ar·gil·la·ceous /ˌɑrʤəˈleʃəs/
  (a.)粘土的,含粘土的,粘土似的
  Ar·gil·la·ceous a.  Of the nature of clay; consisting of, or containing, argil or clay; clayey.
  Argillaceous sandstone Geol., a sandstone containing much clay.
  Argillaceous iron ore, the clay ironstone.
  Argillaceous schist or state. See Argillite.
  ◄ ►
  argillaceous
       adj : resembling or containing clay; "argillaceous rocks" [syn: clayey]
             [ant: arenaceous]