orogenyn.
/ɒˈrɒdʒᵻni/, /əˈrɒdʒᵻni/, /ɔːˈrɒdʒᵻni/, U.S. /ɔˈrɑdʒ(ə)ni/ Geology.
1. The process by which mountains are formed; = orogenesis n.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > orogenesis
revolution1795
mountain building1871
orogenesis1886
orogeny1890
1890 G. K. Gilbert Lake Bonneville viii. 340 The process of mountain formation is orogeny, the process of continent formation is epeirogeny, and the two collectively are diastrophism.
1950 F. E. Zeuner Dating Past (ed. 2) xi. 349 The periods of regression and orogeny result in intensified erosion on the continent.
1972 McGraw-Hill Yearbk. Sci. & Technol. 305/1 Orogeny results from interactions of this global, continuously evolving system of oceanic ridges and trenches.
1986 New Yorker 29 Feb. 59/3 In the contest between erosion and orogeny, erosion never loses.
2. A period or episode of mountain formation, esp. one in which a specified system of mountains was formed.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > orogenesis > period of
orogeny1914
1914 Jrnl. Geol. (Chicago) 22 647 Throughout its range the Laramide orogeny was marked by great volcanic activity.
1940 Geogr. Jrnl. 96 51 The conception of the orogenic cycle..gets little support from a study of the Variscan orogeny of Central Europe.
1974 Nature 5 Apr. 471/2 Is it generally correct to associate all previous Chinese orogenies with times of rapid seafloor spreading?
1993 Jrnl. Petrol. 34 355 An Upper Cambrian-Lower Ordovician orogeny is known to have affected northern Gondwana.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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n.1890