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单词 anorthosite
释义

anorthositen.

/æˈnɔːθəʊsaɪt/
Etymology: < French anorthose + -ite suffix1.
Min.
A granular igneous rock composed mainly of a soda-lime feldspar.
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
1863 T. S. Hunt in Amer. Jrnl. Sci. 2nd Ser. XXXVI. 222 A series of strata characterized by a great development of anorthosites.
1863 T. S. Hunt in Amer. Jrnl. Sci. 2nd Ser. XXXVI. 224 These anorthosite rocks are often compact, but more frequently granitoid in structure.
1925 J. Joly Surface-hist. Earth iii. 47 These rocks..present to our view many varieties of structure and mineral composition; e.g. in the granites, gneisses, anorthosites, diorites.

Derivatives

anorthoˈsitic adj. of the nature of, or containing, anorthosite.
ΚΠ
1939 Geogr. Jrnl. 94 104 A diorite..so altered by movement and pressure that it has acquired a foliated structure. They want to call it ‘anorthositic gneiss’.
This entry has not yet been fully updated (first published 1933; most recently modified version published online November 2010).
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n.1863
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