In the fields of geology and geography, we have the concept of a landform . It is also known as a relief feature. It is a characteristic found on the Earth's surface that forms part of the terrain. Mountains, hills, mushroom-shaped depressions, and plains are the four main types of landforms found on our planet. These landforms are known as landforms.
In this article we are going to tell you everything you need to know about what a landform is, its characteristics and importance.
Key features
There are forms of major and minor reliefs. The minor landforms are those fashions, canyons, valleys and basins. When we analyze landforms we see that they can exist both under water and on the earth's surface. And it is that under the water mountain ranges and basins are also formed. In science, this type of relief is also studied underwater to know the morphology of the ocean floor.
A geographical feature is a geomorphological unit characteristic of the Earth's surface . Each of the elements that make up the relief has a specific shape across the planet. A geographical feature is a unit belonging to the Earth's morphology and includes all the different landforms we can observe on the planet. These geographical features have different elements, and thanks to this, we can identify them through observation.
Landform and types
Let's see what are the main types of landforms that exist:
- Plain: It is a large expanse of flat land with gentle undulations. When the undulations exceed a certain altitude, it is no longer considered a plain. It boasts vast expanses of land and unique vegetation and fauna.
- Mountain ranges: they are a set of mountains that are intertwined with each other. They usually form an ecosystem as a whole that has characteristics that allow the development of life adapted to it.
- Montana: when we see that a terrain rises more than 700 meters from its base, it is considered a mountain.
- Cliff: They are higher coasts that fall into the sea due to the elevation of the terrain. They usually have a steep and very pronounced slope. If the slope is less steep, it is not a cliff. You can learn more about what is a cliff.
- Archipelago: They are a group of islands that are close to each other. It also has a maximum distance that can exist between island and island so that they form the archipelago as a whole.
- BahÃa: it is the entrance of the sea on the coast. There are areas of the planet where the entrance of the sea is much more pronounced than in others. Well this entry of the sea can be caused by the exit of the land surface towards the sea or vice versa.
- delta: It is an island at the mouth of a river caused by a buildup of sediment. Rivers, primarily rivers, carry sediment along with their flow. This is when the altitude and slope decrease, and the sediments are deposited, forming these small islands known as deltas. You can learn more about this topic in our guide on What a delta is and how it is formed.
- Desert: it is an arid terrain that lacks vegetation due to the lack of rain and the excess of erosion.
- Abroad: It is a swampy terrain that fills with rainwater. It normally has soil rich in organic matter and contains a large amount of moisture. During dry periods, these soils can crack due to lack of moisture.
- Estuary: It is the mouth of a river. There are different morphologies to define estuaries depending on the river's flow. Rivers that are very wide have larger estuaries. These estuaries are usually rich in nutrients, making them excellent for breeding fish species. You can learn about the differences between estuaries and deltas in our article on differences between estuaries and deltas.
- Island: It is a piece of land that is surrounded by water on all sides. If only part of it is not surrounded by water, it is considered a peninsula.
- Lagos: It is a layer of water of variable depth. Its water is usually stratified depending on the water regime. If the water is stationary, different entire layers may be generated, which we find in the thermocline. This is simply a layer where the temperature remains stable across the entire surface.
- Ocean: It is a vast expanse of salt water that covers most of the Earth's surface. Although we call the world's oceans by different names, it's actually the same water that covers most of the Earth's surface.
- Plateau: It is a flat surface within a mountain peak. It should be noted that for a plateau to exist, there must be a mountain that has eroded over the years. It's as if there were a plain on top of a mountain. If you'd like to learn more about this type of relief, you can visit our article on the plateaus of oceaniaI hope this information helps you learn more.
Formation and importance of the landform
Let's look at the formation process of different landforms. Most of them are formed by plate tectonics. This means that the tectonic plates that make up the Earth's surface move due to convection currents in the Earth's mantle. The collision between these tectonic plates is what creates landforms. Erosion and sedimentation are geological processes that affect landforms, producing changes and altering their shapes.
It should also be noted that some biological processes and factors can influence the formation of geographical features. For example, various biological factors affect the morphology of dunes, corals, algae, and reefs. Over time, these biological factors transform and modify the shape of various geographical features.
Let's explore the importance of geographical features. Most of them are vital to people, towns, and communities. This importance stems from their role in providing human resources, tourist attractions, historical significance, and the natural barriers they create and shape, resulting in different climates. High-altitude mountains completely alter the climate of the surrounding area. As a source of natural resources for humans, they are also economically important. Some places are economically wealthy thanks to the presence of a geographical feature. You can also learn about the Eye of the Sahara Desert , an interesting geographical feature.