单词 | pea grit |
释义 | > as lemmaspea grit pea grit n. (a) Geology pisolitic limestone; (b) = pea gravel n. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > pisolite peastone1770 pea grit1834 pisolite1845 1834 R. I. Murchison Outl. Geol. Cheltenham 12 The lowest member of the Inferior Oolite... It is of a rusty brown colour, and is in great part made up of small flat concretions... It is called ‘Pea Grit’ by the country people, and is a useful stone, when employed for gate-posts and other rough work. 1865 D. Page Handbk. Geol. Terms (ed. 2) 352 Pea-grit, a coarse pisolitic limestone..composed of concretionary bodies. 1984 Systematic Zool. 33 351/1 Smith uses taphonomic criteria to reconstruct the environment during deposition of the Jurassic Pea Grit Series in England. 2001 Exotic & Greenhouse Gardening June 87/1 To aid root growth, small gravel or pea grit should be added to the compost. < as lemmas |
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