| 释义 |
allochthon Geol.|æˈlɒkθən|
[G., or back-formation f. next.]
An allochthonous rock formation; opp. autochthon 4.
1942M. P. Billings Struct. Geol. x. 181 Rocks..have traveled many miles from their original place of deposition and are said to be allochthonous..these rocks are sometimes called the allochthon. 1957Amer. Geol. Inst., Gloss. Geol. 7/2 Allochthon, rocks that have been moved a long distance from their original place of deposition by some tectonic process, generally related to overthrusting or recumbent folding, or perhaps gravity sliding. Used in contrast to autochthon. 1961J. Challinor Dict. Geol. 15/2 The ‘allochthon’ (allochthonous folds and thrust masses) is the far-travelled ground. |