单词 | albian |
释义 | Albianadj.n. Geology. A. adj. Designating the uppermost stage of the Lower Cretaceous (esp. in Europe), above the Aptian and below the Cenomanian; of or relating to this stage. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > secondary or Mesozoic > Cretaceous > specific Wealden1828 Speeton1829 Neocomian1843 Albian1846 Senonian1850 Urgonian1856 Santonian1869 Maastrichtian1885 Valanginian1885 Vectian1885 Barremian1903 1846 tr. F. J. Pictet in Q. Jrnl. Geol. Soc. 2 ii. 48 The best recent investigations seem..to show, that in the cretaceous series none of those species found in the neocomian (lower greensand), albian (gault and upper greensand) and chalk groups are common to either of the others. 1895 Science 29 Mar. 341/1 Above these beds there is an abundant plant locality at Buarcos, which is classed as Albian. 1910 Encycl. Brit. I. 505/1 In England it is usual to regard the Albian stage as equivalent to the Upper Greensand plus Gault, that is, to the ‘Selbornian’ of Jukes-Browne. 1963 D. V. Ager Princ. Paleoecol. xvi. 273 Ammonite evidence eventually proved a lower Albian age for the limestone. 2004 J. G. Ogg et al. in F. Gradstein et al. Geol. Time Scale 2004 xix. 362/1 In GTS2004, we assigned the base of the Albian Stage to the lowest occurrence of the calcareous nannofossil Praediscosphaera columnata. B. n. The Albian stage of the Cretaceous; the strata dating from this stage. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > secondary or Mesozoic > Cretaceous > specific gault1575 weald clay1822 Wealden1828 Neocomian1845 Washita1860 Albian1863 Fairlight clays1874 Maastrichtian1931 1863 J. D. Dana Man. Geol. 480 Middle Cretaceous.—1. Gault, Albian of D'Orbigny, Lower Plänerkalk of Saxony. 1868 Geol. Mag. 5 164 There are two distinct horizons of Pecten asper in the Albian of Kent. 1913 Philos. Trans. (Royal Soc.) B. 203 77 The Albian of Madagascar corresponds approximately to our Gault. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles xiv. 323 These clays..range in age from the Ryazanian to the Albian. 2007 M. S. de la Fuente in Z. Gasparini et al. Patagonian Mesozoic Reptiles iii. 59 These sea turtles were the dominant panchelonioids from the Albian to the Turonian. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < adj.n.1846 |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。