Orogeny
Also called: Orogenic process · Topic: Geomorphic Processes: Weathering, Mass Movement, Erosion and Soil Formation · NCERT: Class 11, Ch 5 "Geomorphic Processes"
Meaning
Orogeny is mountain building. Long, narrow belts of the crust are severely folded and deformed. It usually happens where two plates push into each other (convergent plate boundaries). Orogeny is one part of diastrophism.
Example
The Himalayas, along India's northern border, are a product of orogeny. The Alps in Europe and the Andes in South America are also products of orogeny.
Don't confuse with
- Epeirogeny: this is broad, gentle uplift of large areas that builds continents. Orogeny is severe folding of narrow belts that builds mountains.