单词 | eocene |
释义 | Eoceneadj. Geology. 1. The epithet applied to the lowest division of the Tertiary strata, and to the geological period which they represent. ΘΚΠ the world > the earth > structure of the earth > age or period > [noun] > tertiary or Cainozoic > specific Eocene1831 Pliocene1835 Miocene1842 post-Pliocene1852 Oligocene1856 Palaeocene1877 Palaeogene1882 Lutetian1895 Tortonian1931 the world > the earth > structure of the earth > age or period > [adjective] > tertiary or Cenozoic > Eocene Eocene1831 Lutetian1895 the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > tertiary or Cenozoic > Eocene London clay1830 Eocene1831 the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > tertiary or Cenozoic > Eocene Eocene1831 1831 W. Whewell Let. in I. Todhunter William Whewell (1876) II. 111 I propose for your four terms 1 acene, 2 eocene, 3 miocene, 4 pliocene. 1833 C. Lyell Princ. Geol. (ed. 2) III. 54 The period next antecedent we shall call Eocene. 1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) vii. 174 The eocene group is characterised by a total absence of cycadeæ. 1878 T. H. Huxley Physiography (ed. 2) 214 The Eocene rocks once spread over the whole surface of this chalk. 2. quasi-n. ΚΠ 1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) xi. 370 1. Upper Eocene. 2. Middle Eocene. 3. Lower Eocene. This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2021). < adj.1831 |
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