单词 | the drift |
释义 | > as lemmasthe Drift a. Geology. A term applied (a) to any superficial deposit caused by a current of water or air; also (b) spec. ( the Drift) to Pleistocene deposits of glacial and fluvio-glacial detritus, also known as boulder-clay, and till; diluvium. ΘΚΠ the world > the earth > structure of the earth > constituent materials > sediment or alluvium > [noun] > diluvium alluvion1731 diluvium1819 drift1839 1839 R. I. Murchison Silurian Syst. i. xxxvii. 509 Each region of the earth has its own superficial diluvia, produced by separate and distinct action; [for these] the unambiguous word drift is proposed. 1851 D. Wilson Archæol. & Prehistoric Ann. Scotl. i. i. 23 Accumulations of marine and fresh-water shingle and gravel called drift and diluvium. 1865 J. Lubbock Prehist. Times Pref. 1 The Flint Implements of the Drift. 1869 R. B. Smyth Gold Fields Victoria 609 Drift, loose sand or a very loose friable alluvial deposit met with in some places close to the washdirt. 1882 A. Geikie Text-bk. Geol. vi. v. i. §1. 858 This ‘glacial drift’ spreads over the low ground of the glaciated districts. 1892 S. R. Gardiner Student's Hist. Eng. 2 These Palæolithic men of the river drift. < as lemmas |
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