英语词汇“leucocratic”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

leucocratic adj.

Brit.

/ˌl(j)uːkə(ʊ)ˈkratɪk/

U.S.

/ˌlukəˈkrædɪk/

/ˌlukoʊˈkrædɪk/

[ < German leukokrat (W. C. Brögger Eruptivgesteine des Kristianiagebietes (1898) iii. 264), < Greek κρατεῖν to rule, prevail] Geology (of a rock) light-coloured; rich in light-coloured minerals.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > texture or colour > [adjective] > colour

melanocratic1901

mesocratic1901

leucocratic1909

1909 A. Harker Nat. Hist. Igneous Rocks v. 112 The former [sc. camptonite, is] a melanocratic type..and the latter [sc. mænaite] leucocratic.

1954 H. Williams et al. Petrogr. ii. 33 In Johannsen's classification four rock classes are distinguished according to the volume-content of dark minerals, the limits being placed at 5, 50, and 95 percent. Shand also distinguishes four classes, but with different limits, as follows: leucocratic rocks, with less than 30 percent mafic minerals; mesocratic rocks, with 30–60 percent; melanocratic rocks, with 60–90 percent; and hypermelanic rocks, with more than 90 percent mafic minerals.

1965 G. J. Williams Econ. Geol. N.Z. xiv. 216/1 The Separation Point granite..is a massive white leucocratic soda-granite.

单词	leucocratic
释义	> as lemmas leucocratic leucocratic adj. Brit. /ˌl(j)uːkə(ʊ)ˈkratɪk/ , U.S. /ˌlukəˈkrædɪk/ , /ˌlukoʊˈkrædɪk/ [ < German leukokrat (W. C. Brögger Eruptivgesteine des Kristianiagebietes (1898) iii. 264), < Greek κρατεῖν to rule, prevail] Geology (of a rock) light-coloured; rich in light-coloured minerals. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > texture or colour > [adjective] > colour melanocratic1901 mesocratic1901 leucocratic1909 1909 A. Harker Nat. Hist. Igneous Rocks v. 112 The former [sc. camptonite, is] a melanocratic type..and the latter [sc. mænaite] leucocratic. 1954 H. Williams et al. Petrogr. ii. 33 In Johannsen's classification four rock classes are distinguished according to the volume-content of dark minerals, the limits being placed at 5, 50, and 95 percent. Shand also distinguishes four classes, but with different limits, as follows: leucocratic rocks, with less than 30 percent mafic minerals; mesocratic rocks, with 30–60 percent; melanocratic rocks, with 60–90 percent; and hypermelanic rocks, with more than 90 percent mafic minerals. 1965 G. J. Williams Econ. Geol. N.Z. xiv. 216/1 The Separation Point granite..is a massive white leucocratic soda-granite. extracted from leuco-comb. form < as lemmas
随便看	overfluent overflush overflushed overflushes overflutter overflux overfly overflying overfold overfolded overfolding overfolds overfond overfondle overfondled overfondly overfondness overfoolish overforce overformed overforth overforward overforwardly overforwardness overfought

> as lemmas