单词 | givetian |
释义 | Givetianadj. Geology. Name of the upper one of the two stages that constitute the Middle Devonian in Europe; of or pertaining to this stage or the geological period during which it was deposited. Also absol. ΘΚΠ the world > the earth > structure of the earth > age or period > [adjective] > primary or Palaeozoic > Devonian > specific period Coblenzian1853 Famennian1882 Frasnian1882 Givetian1882 Siegenian1922 the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Devonian > specific Helderberg1840 Coblenzian1853 Rhenan1853 Vergent1858 hercynian1880 Famennian1882 Frasnian1882 Givetian1882 Helderbergian1906 Siegenian1922 1882 A. Geikie Text-bk. Geol. vi. 702/1 Givetien. The great limestone of the middle Devonian series, well seen at Givet. 1902 A. J. Jukes-Browne Student's Handbk. Stratigr. Geol. x. 176 [In the Belgian Ardennes] the upper stage of the Middle Devonian is a massive limestone 1300 feet thick, and is well seen at Givet on the Meuse, whence it is known as the Givétien [(ed. 2) Givetian]. 1931 J. W. Gregory & B. H. Barrett Gen. Stratigr. vi. 96 In central Russia the Eifelian is also absent, but the Givetian is represented by marls and limestones. 1967 C. Teichert & E. L. Yochelson Ess. in Paleontol. & Stratigr. 184 15 genera from the Eifelian and only ten genera from the Givetian Stage. 1967 D. H. Rayner Stratigr. Brit. Isles v. 161 Near Padstow the Middle Devonian is represented by grey slates with Eifelian and Givetian goniatites. This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018). < adj.1882 |
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