allochthon
1940-45; back formation from allochthonous. Pronunciation
  • IPA: /əˈlɒkθən/, /əˈlɒkθɒn/
Noun

allochthon (plural allochthons)

  1. (geology) A geological formation not formed in the region where found and moved to its present location by tectonic forces. Compare autochthon.



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