Q:

What landforms are present in the tundra?

A:

Quick Answer

The tundra has a variety of landforms that are unique to the frozen landscape. Pingos, frost boils, bumpy ground, polygons and stripes all form under the conditions present only in the tundra.

Continue Reading

Full Answer

In the tundra, the topsoil freezes, thaws and then refreezes. The topsoil is abnormally pushed and pulled during this process. However, when plants, rocks and bodies of water get in the way as the topsoil is pushed along with the frost, it creates tiny hills, valleys, slopes, bumps and porous regions, aptly called bumpy ground.

When water that is trapped under the permafrost freezes, it heaves upwards due to pressure. Year after year, the frozen, underground water grows upwards, sometimes up to 50 meters tall. These are called pingos. Pingos are also formed when permafrost surrounds a body of water, which later freezes and turns into a mound.

During the freezing and thawing of water above the permafrost, the frost pushes rocks outwards in ever widening circles called frost boils. Stripes are formed in the same manner as frost boils. When frost boils occur on hills, the rocks end up separated by size and form stripes. Water can also get trapped in cracks in the ground. When the water freezes, it expands, creating geometrical shapes in the ground called polygons, which can be anywhere between three and 30 meters wide.

Mountains, lakes and even islands are all part of the landforms found in the tundra.

Learn more about Landforms

Related Questions

  • Q:

    What are the four major landforms?

    A:

    Geologists consider the four major landforms to be hills, mountains, plains and plateaus. Other minor categories of landforms include, but are not limited to, canyons, valleys, buttes, basins, bays and peninsulas.

    Full Answer >
    Filed Under:
  • Q:

    How are landforms formed?

    A:

    Landforms are formed by movements of the earth, such as earthquakes, weathering, erosions and deposits. Many landforms are created by more than one of these processes. These are called polygenetic landforms.

    Full Answer >
    Filed Under:
  • Q:

    What are some names of landforms?

    A:

    Major landforms include plains, plateaus, hills and mountains, whereas minor landforms encompass smaller natural features such as buttes, canyons, valleys and basins. These landforms came about as the result of erosion on the earth's surface and tectonic plate activity beneath that surface over a long period of time.

    Full Answer >
    Filed Under:
  • Q:

    What are the main landforms in the desert?

    A:

    The most common landscape features found in deserts are sand dunes, yardangs, desert pavements, debris, playas, oases, mesas, alluvial fans, arroyos and buttes. These landforms vary from desert to desert.

    Full Answer >
    Filed Under:

Explore