catflap.org Online Dictionary Query

  overlying rock /ˌəʊvəlˈaɪɪŋ ɹˈɒk/
  Deckgestein , Deckgebirge , Deckschicht , hangende Schicht  [min.] , Hangendes  [min.]  [geol.]
     Synonyms: cap rock, capping bed, capping, overlying layer, overlying strata, hanging layer, upper wall, lidstone, uncallow
  
   see: drawrock, rubbish of an open cut, leading, strip, remove the overburden
  
           Note: mass