upthrow

  1. Verb.  (archaic, poetic) To throw or cast upwards.
  2. Verb.  (geology, transitive) To throw up (a mass of material) from below, causing a fault.
  3. Verb.  (geology, intransitive) To be thrown up from below, causing a fault.
  4. Noun.  (geology) A fault in which a mass of material has been thrown up from below.

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This entry was last updated on RefTopia from its source on 3/20/2012.