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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 ?
The Upper Paleozoic, Permian-Carboniferous basins exist in the study area, forming narrow trough-like, often asymmetric depressions already independent on the course of the main Variscan orogeny divides.
The Dabashan thrust nappe structure at the southern margin of the Qinling orogenic belt suffered at least two stages of evolution which are Late Triassic plate subduction collisional orogeny between North China block, Qinling micro-plate and Yangtze block followed by intracontinental orogeny since the Meso-Cenozoic.
It is believed that the onset of generation was delayed until well after the Hercynian orogeny.
Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact
The Carpathians were formed in the Alpine orogeny and during their movement, the adjacent areas (the Sub-Carpathians) were drawn along, thus being formed in the same manner.
Numerous occurrences of different types (Sn-W, P, Pb-Zn, Pb-Zn-Cu, Pb-Ag, Sb, Au) have originated as a result of intensive collisional magmatic activity and regional metamorphism during Variscan orogeny (Gumiel and Arribas, 1990).
Alarcon will work alongside fellow senior wineinaker Matthew Glynn at the winery in the Carneros AVA and continue to work as winemaker of Orogeny Vineyards in the Russian River Valley AVA of Sonoma County, Calif.
Orogeny started following Neo--tethyan subsidence [11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26] towards north and continental edges of these plates reaching the region.
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.