cortlandtiten.
/ˈkɔːtləntʌɪt/ Geology.
A coarse-grained rock composed chiefly of hornblende and olivine; a variety of peridotite.
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the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > peridotites
wehrlite1861
harrisite1865
peridotite1882
cortlandtite1886
harzburgite1890
koswite1901
1886 G. H. Williams in Amer. Jrnl. Sci. 31 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’.
1903 A. Geikie Text-bk. Geol. (ed. 4) I. 241 Cortlandtite..so named from its occurrence in the ‘Cortlandt series’ of eruptive rocks on the Hudson River.
1909 F. H. Hatch Text-bk. Petrol. 243 Cortlandtite = olivine + hornblende + hypersthene... Name suggested by G. H. Williams.
1959 W. W. Moorhouse Study of Rocks in Thin Section xvi. 320 Cortlandtite is a hornblende peridotite.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2022).
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n.1886