| 单词 | blue lias |
| 释义 | > as lemmasblue lias blue lias n. (a) a bluish limestone of southern Britain, used as a building stone; cf. lias n.; (b) Geology (usually with capital initials) a rock formation of the Lower Jurassic of southern Britain, consisting of alternating thin layers of limestone and shale. ΚΠ a1782 J. Wood Series of Plans Cottages or Habitations (1788) 7 The coach or carriage ways are laid, or pitched with blue lyas, which wears very well, tho' it will not bear the frost. 1838 Gardener's Mag. 4 153 The blue lias, the gault: there is a considerable portion of calcareous matter in the soil of these [formations], but less silicious matter than in others. 1939 D. Hartley Made in Eng. iii. 129 Blue lias is one of the finest building stones we have, and is much used for paving work. 1949 A. E. Trueman Geol. & Scenery Eng. & Wales xvii. 226 The sequence is exactly that which underlies the Vale of Gloucester, red marls of the New Red Sandstone followed by the limestones and clays of the Blue Lias. 1997 R. Fortey Life ix. 263 Most [ichthyosaurs] were collected from the Blue Lias outcrops along the Dorset coast. 2011 Bristol Evening Post (Nexis) 20 Oct. 24 The sitting room features a multi-fuel stove with a blue lias surround. < as lemmas |
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