plumasiten.

Brit.

/ˈpluːməsʌɪt/, U.S.

/ˈpluməˌsaɪt/

Origin: From a proper name, combined with an English element. Etymons: proper name Plumas , -ite suffix¹.

Etymology: < the name of Plumas County, California, where it was first found + -ite suffix¹.

Geology.

A plutonic rock, typically coarse-grained and found esp. in dykes, consisting chiefly of corundum grains in an oligoclase matrix.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > hypabyssal rocks

picrite1868

tinguaite1890

grorudite1896

hedrumite1896

heumite1901

plumasite1903

ophiolite1937

1903 A. C. Lawson in Bull. Dept. Geol. Univ. Calif. 3 228 This particular type of rock magma does not appear to have been as yet recognized among the known occurrences of rocks, and it is, therefore, proposed to name it, for convenience in reference, Plumasite, from Plumas county to which it occurs.

1918 Trans. Geol. Soc. S. Afr. 21 53 (title) Plumasite (corundum-aplite) and titaniferous magnetite rocks from Natal.

1949 F. H. Hatch et al. Petrol. Igneous Rocks (ed. 10) iii. iii. 262 Dioritic rocks of unusual composition include plumasite.

1972 Jrnl. Geol. Soc. India 13 198 Plumasite is a result of the local enrichment of alumina in the magma due to the reaction of the acid magma of the Peninsular gneissic period with the older magnesian country [rock].

1994 Geol. Pacific Ocean 8 1135 The granites..are similar in a number of geochemical characteristics to rare-metal alkali and plumasite types.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	plumasite
释义	plumasiten. Brit. /ˈpluːməsʌɪt/, U.S. /ˈpluməˌsaɪt/ Origin: From a proper name, combined with an English element. Etymons: proper name Plumas , -ite suffix¹. Etymology: < the name of Plumas County, California, where it was first found + -ite suffix¹. Geology. A plutonic rock, typically coarse-grained and found esp. in dykes, consisting chiefly of corundum grains in an oligoclase matrix. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > hypabyssal rocks picrite1868 tinguaite1890 grorudite1896 hedrumite1896 heumite1901 plumasite1903 ophiolite1937 1903 A. C. Lawson in Bull. Dept. Geol. Univ. Calif. 3 228 This particular type of rock magma does not appear to have been as yet recognized among the known occurrences of rocks, and it is, therefore, proposed to name it, for convenience in reference, Plumasite, from Plumas county to which it occurs. 1918 Trans. Geol. Soc. S. Afr. 21 53 (title) Plumasite (corundum-aplite) and titaniferous magnetite rocks from Natal. 1949 F. H. Hatch et al. Petrol. Igneous Rocks (ed. 10) iii. iii. 262 Dioritic rocks of unusual composition include plumasite. 1972 Jrnl. Geol. Soc. India 13 198 Plumasite is a result of the local enrichment of alumina in the magma due to the reaction of the acid magma of the Peninsular gneissic period with the older magnesian country [rock]. 1994 Geol. Pacific Ocean 8 1135 The granites..are similar in a number of geochemical characteristics to rare-metal alkali and plumasite types. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1903
随便看	diarthrodial cartilages diarthroses diarthrosis diary diasatyrion diasceuast diaschisis diaschisma diascope diascopes diascopic diascord diasebesten diasenna diaskeuasis diaskeuast diaskeuasts diasper diaspora diaspora culture diaspora jew diaspora work diasporan diasporas diaspore