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单词 oak-tree clay
释义

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oak-tree clay
oak-tree clay n. Obsolete either of two clay deposits of southern England: (a) = Kimmeridge clay n. at Kimmeridge n.; (b) = weald clay n. at weald n. Compounds.
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the world > the earth > structure of the earth > constituent materials > clay > [noun] > other clays
red clayc1475
urry1669
blae1724
cat-dirt1747
iron clay1750
till1762
mulatto clay1788
oak-tree clay1794
porcelain jasper1794
porcellanite1794
Karoo ground1836
plinthite1836
papa1851
Bradford clay1858
Indianaite1868
sinopite1868
hydrobiotite1881
pampas-clay1885
byon1892
potato clay1896
bentonite1898
quick clay1901
gumbotil1916
1794 T. Davis Gen. View Agric. Wilts. 63 There are three kinds of land, on which chalk is used with success in the district... 3dly. On the strong, oak-tree clay, or rather loam, in the valley at Mere, Sedgehill, and Semley.
1816 W. Smith Strata Identified 11 The Oak-tree Clay also may be mistaken or confounded with the Brick earth, which in several parts produces good oak.
1830 J. Baxter Libr. Agric. & Hort. Knowl. 70 The Sussex oaks are famed for many excellent qualities. They grow in a soil which, from their abundance and superior growth in the same, is called oak-tree clay.
1845 Encycl. Metrop. VI. 631/1 Mr Smith and other Geologists at one time referred the interior sandstones to the ‘iron sand’, and the Weald clay to one of two beds, confused under the title of oak-tree clays.
extracted from oak treen.
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