| 释义 |
anorthosite Min.|æˈnɔːθəʊsaɪt|
[f. F. anorthose + -ite1.]
A granular igneous rock composed mainly of a soda-lime feldspar. Hence anorthoˈsitic a., of the nature of, or containing, anorthosite.
1863T. S. Hunt in Amer. Jrnl. Sci. 2nd Ser. XXXVI. 222 A series of strata characterized by a great development of anorthosites. Ibid. 224 These anorthosite rocks are often compact, but more frequently granitoid in structure. 1925J. 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. 1939Geogr. Jrnl. XCIV. 104 A diorite..so altered by movement and pressure that it has acquired a foliated structure. They want to call it ‘anorthositic gneiss’. |