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

isograd n.

Brit.

/ˈʌɪsə(ʊ)ˌɡrad/

U.S.

/ˈaɪsəˌɡræd/

[grade n.] Geology a line or surface (either imaginary or in a diagram) joining points where the rock originated under the same conditions of pressure and temperature, as indicated by similarity of facies or metamorphic grade.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > map > [noun] > line on map > geological features or phenomena

isoseismal1883

isobase1892

isopachyte1912

isovol1915

isopach1918

isograd1924

isochron1968

1924 C. E. Tilley in Geol. Mag. LXI. 169 In the terminology suggested above, this line may be said to be an Isograd... In reality an isograd is the intersection of an inclined isograd surface with the earth's surface.

1956 E. W. Heinrich Microsc. Petrogr. vi. 173 By joining points on a map that mark the initial appearance of each of the diagnostic minerals, mineral isograds (biotite isograd, sillimanite isograd, etc.) may be defined.

1971 I. G. Gass et al. Understanding Earth i. 36/2 The garnet isograd for example is the surface (line on the map) separating the garnet-bearing rocks of the garnet zone (high-grade) from the garnet-free rocks of the biotite zone (low grade).

单词	isograd
释义	> as lemmas isograd isograd n. Brit. /ˈʌɪsə(ʊ)ˌɡrad/ , U.S. /ˈaɪsəˌɡræd/ [grade n.] Geology a line or surface (either imaginary or in a diagram) joining points where the rock originated under the same conditions of pressure and temperature, as indicated by similarity of facies or metamorphic grade. ΘΚΠ the world > the earth > earth sciences > geography > map-making > map > [noun] > line on map > geological features or phenomena isoseismal1883 isobase1892 isopachyte1912 isovol1915 isopach1918 isograd1924 isochron1968 1924 C. E. Tilley in Geol. Mag. LXI. 169 In the terminology suggested above, this line may be said to be an Isograd... In reality an isograd is the intersection of an inclined isograd surface with the earth's surface. 1956 E. W. Heinrich Microsc. Petrogr. vi. 173 By joining points on a map that mark the initial appearance of each of the diagnostic minerals, mineral isograds (biotite isograd, sillimanite isograd, etc.) may be defined. 1971 I. G. Gass et al. Understanding Earth i. 36/2 The garnet isograd for example is the surface (line on the map) separating the garnet-bearing rocks of the garnet zone (high-grade) from the garnet-free rocks of the biotite zone (low grade). extracted from iso-comb. form < as lemmas
随便看	boundary fence boundary layer boundary light boundary value boundary-bye boundary-dispute boundary-ditch boundary-hit boundary-keeper boundary-line boundary-mark boundary-play boundary-rider boundary-riding boundary-stroke boundary-treaty boundary-wall boundarybye boundarydispute boundaryditch boundaryhit boundarykeeper boundaryless boundarylessness boundaryline

> as lemmas