单词 | allochthonous |
释义 | allochthonous/əˈlɒkθənəs![]() adjective Geology Denoting a deposit or formation that originated at a distance from its present position. Often contrasted with autochthonous.The fossils of the westernmost exposures of the Hoko River Formation are allochthonous, preserved in reworked concretions within conglomerates that were deposited as part of a submarine fan system during late Eocene time....
OriginEarly 20th century: from allo- 'other' + Greek khthōn 'earth' + -ous. |
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