| 释义 |
cortlandtite Petrogr.|ˈkɔːtləntaɪt|
[f. the name of Cortlandt township, New York state: see -ite1.]
A coarse-grained rock composed chiefly of hornblende and olivine; a variety of peridotite.
1886G. H. Williams in Amer. Jrnl. Sci. 3rd Ser. XXXI. 30 It would seem to the writer preferable, if a new name is necessary, to adopt the term ‘Cortlandtite’ for this [horn-blende-olivine] class of rocks which play such an important rôle in the ‘Cortlandt Series’. 1903Geikie Text-bk. Geol. (ed. 4) 241 Cortlandtite..so named from its occurrence in the ‘Cortlandt series’ of eruptive rocks on the Hudson River. 1959W. W. Moorhouse Study Rocks in Thin Section xvi. 320 Cortlandtite is a hornblende peridotite. |