noun (n)

• (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other(noun.object)

  Example:
  He studied the faulting of the earth's crust.
  

  Synonym:
  break, fault, fracture, geological fault, shift
  

  source: wordnet30
• The state or condition of being faulted; the process by which a fault is produced.(noun)

  source: webster1913