| 单词 | yellow ground |
| 释义 | > as lemmasyellow ground yellow ground n. a brownish-yellow, oxidized form of the igneous rock kimberlite, sometimes containing diamonds, which occurs at or near the land surface; cf. blue ground n. at blue adj. and n. Compounds 1d. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > other igneous clay-stone1777 variolite1781 pyroxenite1845 aplite1862 anorthosite1863 teschenite1866 yellow ground1883 kimberlite1887 sanidinite1887 websterite1890 essexite1891 monzonite1895 missourite1896 theralite1898 heronite1899 kentallenite1900 carbonatite1924 wonderstone1936 1883 Minutes Proc. Inst. Civil Engineers 74 89 The material in the upper part of the pipe was generally distinguished as ‘Yellow Ground’, that lower down as ‘Blue Ground’. 2009 Lithos 112 Suppl. No. 1. 299/1 The degree of weathering varies widely on a metre-scale, with visibly fresh kimberlite outcrop typically interspersed with ‘yellow ground’ and small calcrete nodules. < as lemmas |
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