What is orogeny?

  • (noun): The process of mountain formation (especially by the upward displacement of the earth's crust).

Orogeny

Orogeny refers to forces and events leading to a large structural deformation of the Earth's lithosphere (crust and uppermost mantle) due to the engagement of tectonic plates. Response to such engagement results in the formation of long tracts of highly deformed rock called orogens or orogenic belts. The word "orogeny" comes from the Greek (oros for "mountain" plus genesis for "creation" or "origin"), and it is the primary mechanism by which mountains are built on continents. Orogens develop while a continental plate is crumpled and is pushed upwards to form mountain ranges, and involve a great range of geological processes collectively called orogenesis.

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Some articles on orogeny:

Cadomian Orogeny
... The Cadomian Orogeny was a tectonic event or series of events in the late Neoproterozoic, about 650-550 Ma, which probably included the formation of mountains ... Rocks deformed in the orogeny are found in several areas of Europe, including northern France, the English Midlands, southern Germany, Bohemia, southern Poland and the southwest Iberian Peninsula ... L Bertrand gave the orogeny its name in 1921, naming it after Cadomus the Gaulish name for Caen in Normandy ...
Orogeny - History of The Concept
... Orogeny was used by Amanz Gressly (1840) and Jules Thurmann (1854) as orogenic in terms of the creation of mountain elevations, as the term mountain building was still used to describe the processes ... the evocative "Jaws of a Vise" theory to explain orogeny, but was more concerned with the height rather than the implicit structures created by and contained in orogenic belts ... It was, in the context of orogeny, fiercely contested by proponents of vertical movements in the crust (similar to tephrotectonics), or convection within the asthenosphere or mantle ...
Conasauga Shale
... (4,600 m) in certain areas by successive orogenic events (Taconic orogeny, Acadian orogeny, Alleghenian orogeny) impacting the southern Appalachians ...
Lachlan Fold Belt - Characteristics - Structure - Orogenies
... Most of the LFB was greatly affected by the Late Ordovician to Early Silurian Benambran Orogeny (also led to the formation of the Wagga-Omeo Zone) ... The Middle Devonian Tabberabberan Orogeny affected the entire LFB and terminated the precratonic stage of its development ... The Carboniferous Kanimblan Orogeny was the terminal event and converted the LFB into a neocraton ...
Sonoma Orogeny
... The Sonoma orogeny was a period of mountain building in western North America, which occurred during the Permian / Triassic transition, around 250 million years ago ... Following the Late Devonian Antler orogeny, it was the second major accretionary event along the Cordilleran margin with many more to come as the closure of the basin between the island arc of Sonomia and the North ... The Sonoma orogeny spelled the end of westward-dipping subduction ...