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- A gorge is a steep-sided, narrow valley with a river or stream running along the bottom. Gorges are formed by the interplay of several geological processes, including erosion, tectonic processes such as vertical uplift and cavern collapse. Erosion by the resident body of water is usually the primary contributor to gorge formation.
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This video explains how gorges are formed, doing so in a clear, colourful, and concise way, ...more. Gorges – amazing chasms that have been carved over many years by streams and rivers.
- 4 min
- 51.8K
- Geology in a Jiffy
Jonathan Petramala. 2.1M views 1 day ago. A short animation showing how a gorge is formed by a waterfall.
- 2 min
- 18.2K
- River Explorers
A gorge is a narrow valley with steep, rocky walls located between hills or mountains. ... A gorge is often smaller than a canyon, although both words are us...
- 2 min
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- Sagar jaiswar
- Characteristics of A Gorge
- Formation
- Types of Gorges
- Benefits
Gorges are formed by an existing river or a former river that has dried up. Most gorges are located between mountains, hills or near-desert plateaus, at the point where a river cuts a channel into the land. Gorges form due to water erosion, weathering, geologic uplift, or the movement and melting of glaciers. Generally, they are more common in dry ...
A gorge can also be formed when an earthquake causes geologic uplift. This uplift causes some parts of Earth's surface to be more elevated than the surrounding area. When rivers flow across these uplifted areas, waterfalls are formed. Meanwhile, the erosion of softer layers of rock occurs, leading to the collapse of a river bed, which formes a gorg...
There are three primary types of gorges: slot canyons, box canyons, and submarine canyons. A slot canyon is a narrow gorge with smooth walls, box canyons are open on only one side, while submarine canyons are formed due to landslides and turbidity currents, rather than weathering or erosion.
Georges can have economic, recreational, and geological benefits. For example, the rivers that form and flow through a gorge can be harnessed through hydroelectric dams for the production of electricity. The Three Gorges Dam in China has 26 turbines that generate 18,000 megawatts of electricity for Shangai and other cities in the region. Gorges can...
A gorge can be formed as a waterfall retreats up a valley. This happens when a river flows over a band of hard rock that lies over the top of the softer, less resistant rock. The river erodes the softer rock faster, through hydraulic action and abrasion.
Over-population and under-population. The main causes of a change in population size. Natural Population Change. Population Policies. A country with a rate of high population growth – China. A country which is over-populated – Bangladesh. A country which is under-populated – Australia.
