| 单词 | gault clay |
| 释义 | > as lemmasgault clay (See quot. 1833.) Also gault clay. ΘΚΠ the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > stratum by constitution > clay gault1575 blue slipper1840 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 1575 G. Gascoigne Noble Arte Venerie lxvi. 186 In grounde that is harde to dygge, as in galte, clay, and stonye grounde. 1698 J. Fryer New Acct. E.-India & Persia 332 The Element..vegetates, and takes upon it the Nature of Minerals, Stones, Gaults, or Clay. 1767 Philos. Trans. 1766 (Royal Soc.) 56 12 This stratum of gravel is..surrounded with a bed of very dark blue golt. 1808 C. Vancouver Gen. View Agric. Devon xi. 285 The bottom of this drain was formed of a retentive clay or gault. 1832 J. Baxter Libr. Agric. & Hort. Knowl. (ed. 2) 280 Chalk marl and galt are the strata which appear immediately under the lower chalk formation, and occupy a valley at the foot of the chalk hills. 1833 C. Lyell Princ. Geol. III. Gloss. 69 Gault, a provincial name in the east of England for a series of beds of clay and marl, the geological position of which is between the upper and the lower greensand. 1876 D. Page Adv. Text-bk. Geol. (ed. 6) xviii. 337 The argillaceous strata..known by the provincial term ‘gault’ or ‘golt’. < as lemmas |
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