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Constructive landforms
What is a Landform
Landforms created by crustal deformationLanforms created from volcanic activityFormation of landforms from sediment depositionWeathering factor of landformsLandforms created by erosionKinds of landformsFormation of a canyon landformformation of cape and formation of peninsulaFormation of coastline landformsFormation of continental shelf landformsFormation of a delta landformFormation of desert landformsFormation of glaciersHow do islands formHow do isthmus landforms formFormation of mountain landformsHow fo plains formHow do Plateaux landform formHow do sand dunes formHow do valleys formDestructive landforms
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How is a landform created


What is a Plateau Landform?


This is an elevated land with a flat top and steep slope on at least one side. The elevation is usually between 90 to 900m.

How do plateaux form

Plateaux occur in almost every part of the world and are one of the most common landforms. One major difference between a plateau and a mountain is that a plateau is flat at the top. The Table Mountain in Cape Town South Africa and the Tibetan Plateau in Central Asia are two great examples of plateaux.

A plateau can be formed by tectonic activity. Converging forces in the earth's crust can cause plates to be pushed slowly upwards. Extreme heat buildup can also force plate movement upwards. A plateau formed in this way is called a Tectonic plateau.

A Volcanic plateau (also known as a flood basalt) is another type of plateaux. Regular and repeated flow of highly viscous lava from volcanoes can slowly build up and spread over many miles, and solidify to form plateaux. Sometimes this can involve many small volcanoes.

Plateaus formed from volcanoes
The illustration above shows how repeated
flow of laver layers to form an elevation.


Weathering and erosion can influence the shape of plateaux. Erosive activity can result in massive cuts and gullies through a plateau. They can wear down softer rock areas of the landform, leaving only the hard and rocky bits standing tall. This is called a dissected plateau. The Chotta Nagpur Plateau of India is an example.

With time more erosion will rip the plateau into smaller landforms. It is important to know about these two terms, Mesa and Butte, as they are often confusing to many people.
Consider the illustration below:

plateau, mesa and butte landforms
When plateaux are weathered and eroded, some areas of hard rock are left uneroded. The hard rock often protects the rock material beneath it. When this happens, a mesa is formed. A mesa may be wider than taller.

In a similar way, a mesa will be weathered and eroded, and with time, a small piece os the mesa is left. This is a butte. At this time, the butte is taller that wider.

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Landform diagrams

How is a landform created