Allochthonous 1
Allochthonous 1 :
(adj.) Geology. Pertaining to materials, particularly rock masses, that formed somewhere other than their present location, and were transported by fault movements, large-scale gravity sliding, or similar processes. Autochthonous material, in contrast, formed in its present location. Landslides can result in large masses of allochthonous rock, which typically can be distinguished from autochthonous rocks on the basis of their difference in composition. Faults and folds can also separate allochthons from autochthons. Ant: autochthonous. See: fold. More Details: The Prize Beneath the Salt
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