maficadj.

Brit.

/ˈmafɪk/, U.S.

/ˈmæfɪk/

Origin: Formed within English, by compounding. Etymons: magnesium n., ferric adj.

Etymology: < ma- (in magnesium n.) + f- + -ic (in ferric adj.).

Geology.

Of, relating to, or designating the dark-coloured minerals of igneous rocks, which are predominantly ferromagnesian in character; (of a rock) containing a high proportion of such minerals. Opposed to felsic.

ΘΚΠ

the world > the earth > minerals > mineral structure or appearance > [adjective] > sodic, potassic, or mafic

potassic1902

sodic1902

sodipotassic1902

mafic1912

1912 W. Cross et al. in Jrnl. Geol. (Chicago) 20 561 We suggest the term..mafic for the group of modal ferromagnesian minerals of all kinds.

1926 G. W. Tyrell Princ. Petrol. vi. 129 When augite is the predominant mafic mineral the term ankaramite..is applied.

1969 Nature 20 Dec. 1153/1 The lavas are intruded by ultramafic and mafic bodies and dyke swarms.

1971 I. G. Gass et al. Understanding Earth v. 83/1 The oceans, with their thin (about 5 km) mafic crust.

1992 K. S. Robinson Red Mars (1993) vi. 382 A new Amex mining station manned mostly by Americans, perched on one of the rare big veins of mafic rock rich in platinoids.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	mafic
释义	maficadj. Brit. /ˈmafɪk/, U.S. /ˈmæfɪk/ Origin: Formed within English, by compounding. Etymons: magnesium n., ferric adj. Etymology: < ma- (in magnesium n.) + f- + -ic (in ferric adj.). Geology. Of, relating to, or designating the dark-coloured minerals of igneous rocks, which are predominantly ferromagnesian in character; (of a rock) containing a high proportion of such minerals. Opposed to felsic. ΘΚΠ the world > the earth > minerals > mineral structure or appearance > [adjective] > sodic, potassic, or mafic potassic1902 sodic1902 sodipotassic1902 mafic1912 1912 W. Cross et al. in Jrnl. Geol. (Chicago) 20 561 We suggest the term..mafic for the group of modal ferromagnesian minerals of all kinds. 1926 G. W. Tyrell Princ. Petrol. vi. 129 When augite is the predominant mafic mineral the term ankaramite..is applied. 1969 Nature 20 Dec. 1153/1 The lavas are intruded by ultramafic and mafic bodies and dyke swarms. 1971 I. G. Gass et al. Understanding Earth v. 83/1 The oceans, with their thin (about 5 km) mafic crust. 1992 K. S. Robinson Red Mars (1993) vi. 382 A new Amex mining station manned mostly by Americans, perched on one of the rare big veins of mafic rock rich in platinoids. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < adj.1912
随便看	ulcerates ulcerating ulceration ulcerations ulcerative ulceratory ulcered ulcering ulcerogenic ulcerous ulcerously ulcerousness ulcers ulcery ulcuscle ulcuscule ule ulema ulemas ulendo ulent ulero ules ulex ulexes