| 单词 | wenlockian |
| 释义 | > as lemmaswenˈlockian wenˈlockian adj. of or belonging to the Wenlock formation or series. Frequently absol. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Silurian > specific Taconic1842 Ludlovian1855 wenlockian1855 Salopian1869 Downtonian1879 Valentian1879 Gotlandian1909 Salinan1909 1855 J. Phillips Man. Geol. 104 The genera being mostly Wenlockian and Ludlovian. 1946 L. D. Stamp Britain's Struct. & Scenery xii. 109 Though various divisions of the Silurian have been proposed the old three-fold one into: (3) Ludlow Series or Ludlovian; (2) Wenlock Series or Wenlockian; (1) Llandovery Series or Valentian; has stood the test of time and is most convenient. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 124 The thickness of the Wenlockian strata may amount to about 25,000 feet. 1974 Encycl. Brit. Macropædia XVI. 774/2 The Llandoverian..saw the beginning of a sharp distinction between basin graptolitic shale facies and calcareous and..sandy shelf facies. This distinction was well marked in the Wenlockian. < as lemmas |
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