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 (ô-rŏj′ə-nē) also or·o·gen·e·sis (ôr′ə-jĕn′ĭ-sĭs)
The process of mountain formation, especially by a folding and faulting of the earth's crust.

or′o·gen′ic (ôr′ə-jĕn′ĭk) adj.
or′o·gen′i·cal·ly adv.


(ɒˈrɒdʒɪnɪ) or


(Geological Science) the formation of mountain ranges by intense upward displacement of the earth's crust, usually associated with folding, thrust faulting, and other compressional processes
orogenic, orogenetic adj
ˌoroˈgenically, ˌorogeˈnetically adv


(ɔˈrɒdʒ ə ni, oʊˈrɒdʒ-)

the process of mountain formation or upheaval.
or•o•gen•ic (ˌɔr əˈdʒɛn ɪk, ˌɒr ə-) adj.
orogenesis, orogeny - Orogenesis is the formation of mountains (Greek oros) and orogeny is the process by which mountains are formed.
See also related terms for mountains.


the process by which mountains are created. — orogenic, orogenetic, adj.
See also: Geology


A phase of mountain building.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.orogeny - the process of mountain formation (especially by the upward displacement of the earth's crust)
geologic process, geological process - (geology) a natural process whereby geological features are modified
References in periodicals archive ?
D1 and D2 correspond to the collisional stage of the Variscan orogeny and are thought to be of Mid-Upper Devonian to Early-Mid-Carboniferous age.
During the Late Miocene and Pliocene, the Alpine Orogeny produced the Zagros and Oman mountains, creating the structural framework seen today.
In the period of Himalayan orogeny, the Permian oil shale cropped out with the uplift of Bogda Mountain due to large-scale thrust faults, which inhibited the organic thermal evolution, a significant structural condition for oil shale formation.
So that this zone has been severely effected by Alpine orogeny and there is Eocene volcanic activities in all its length.
Later, one of the tectonic plates under North America's crust shifted position, building another mountain range-the Laramide Orogeny, or the infant stage of the modern-day Rocky Mountains-furthereast.
Utterly pristine, it seems more the work of some Arctic-besotted Romantic scene painter than the natural result of orogeny and glaciation.
Regional-scale doming, probably related to the Hercynian Orogeny, produced a network of fractures throughout the Alston Block, and these served as pathways for mineralizing solutions driven by heat emanating from the underlying Weardale granite pluton.
Did westward subduction cause Cretaceous-Tertiary orogeny in the North American cordillera?
When yet another orogeny crumples the Maritimes, the spell is broken with pop-up biographies of Canadian heroes of geology or whimsical geologic anecdotes such as "the Queen in camouflage".
The Eureka Sound Group of eastern Axel Heiberg Island: New data on the Eurekan Orogeny. Geological Survey of Canada Paper 86-1B:405-410.
In Sonoma, we now have Moon Mountain Vineyard, Dynamite Vineyards and Orogeny Vineyards.