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nappe



  1. Either of the two parts into which a cone is divided by the vertex. "Nappe" is French for "tablecloth," which in turn comes from the Latin mappa (napkin).

  2. A large-scale fold in rocks, thrown up by mountain-building processes and transported over large distances. The Alps are a system of several such nappes.

Related categories

   • SOLIDS AND SURFACES
   • GEOLOGY AND PLANETARY SCIENCE