单词 | sedimentary |
释义 | sedimentaryadj.n. A. adj. 1. Of, pertaining to, or of the nature of sediment. ΘΚΠ the world > matter > constitution of matter > density or solidity > state of being solid rather than fluid > [adjective] > of or relating to sediment sedimentary1846 1846 G. E. Day tr. J. F. Simon Animal Chem. II. 217 The crisis..shows itself in the urine by the secretion becoming turbid and sedimentary. 1854 F. C. Bakewell Geol. v. 33 The sedimentary depositions having taken place after the crust of the earth had been lifted up above the level of the sea. 1860 M. F. Maury Physical Geogr. Sea (ed. 8) xiv. 609 Mud and all the light sedimentary matter of river waters. 1876 D. Page Adv. Text-bk. Geol. (ed. 6) xviii. 351 The sedimentary origin of chalk. 2. Geology. Of rocks, etc.: Formed by the deposition of sediment. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [adjective] sedimentary1830 sedimental1883 organosedimentary1964 1830 C. Lyell Princ. Geol. (1835) I. i. v. 127 Those who endeavoured to explain the formation of sedimentary strata by causes now in diurnal action. 1839 G. Roberts Dict. Geol. at Tertiary Strata A series of sedimentary rocks. 1880 A. R. Wallace Island Life x. 212 The sedimentary rocks of one age are partly formed from the destruction of the sedimentary rocks of former ages. B. n. A sedimentary formation or deposit. ΘΚΠ the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] sedimentary1878 the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] madreporite1816 sedimentary1878 1878 Smithsonian Rep. 70 The older sedimentaries have been entirely removed from the mountain border. 1888 J. J. H. Teall Brit. Petrogr. 418 The zone of contact between the crystalline rocks and the sedimentaries. This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2018). < adj.n.1830 |
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