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Warming in summer, cooling in winter and gravity

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What is the direction of a glaciers movement indicated by?

The direction of a glacier's movement is indicated by the orientation of its flow lines, which generally follow the slope of the underlying terrain. Additionally, features such as striations, which are scratches or grooves on the bedrock caused by the glacier's movement, can show the direction of flow. The position of moraines, which are accumulations of debris deposited by glaciers, also provides clues about the glacier's movement direction.


Which glacier flows in a surge?

The Medial Glacier is known for its surging behavior. This phenomenon involves rapid movement of the glacier over a short period, often leading to significant changes in its size and shape. Surges can be caused by various factors, including changes in meltwater availability or internal pressure within the glacier. Other examples of surging glaciers include the Bering Glacier in Alaska and the Variegated Glacier in Alaska as well.


What is the galloping glacier?

A galloping glacier is a glacier that, unlike others of their type which move at inches per day, shoots ahead feet per day, an astonishing rate for glaciers. The nickname "the galloping glacier" has also been given to an Alaskan black rapids glacier which set a record for its speed. Galloping glaciers are most likely caused by extra melted snow lubricating the glacier.


What is a confined glacier?

A confined glacier is a glacier that is confined by topography. For example, a glacier that forms on a mountain. Continental glaciers, by contrast, are not affected. The glaciers on Antarctica and Greenland are continental glaciers. The glaciers at Glacier Bay National Park, or on a mountain are confined glaciers.


What is crevasse slip?

A crevasse slip is a type of glacier movement where the upper portion of the glacier slides down relative to the lower portion, causing the opening of crevasses or cracks on the surface. This movement can be triggered by internal glacier stress, changes in temperature, or the presence of water at the base of the glacier. Crevasse slips can pose risks to glacier travelers and mountaineers.

Related Questions

What process is a sudden movement caused primarily by gravity?

A fall is a sudden movement caused primarily by gravity.


What is the rapid movement of a glacier called?

The rapid movement of a glacier is called a glacier surge. This sudden acceleration in movement can be caused by internal changes within the glacier, such as the release of stored meltwater or changes in the glacier's structure.


What is The velocity of the ice movement is primarily controlled by what?

The velocity of ice movement is primarily controlled by factors such as the slope of the glacier, the amount of snowfall or ice accumulation, temperature, and the presence of liquid water at the base of the glacier that acts as a lubricant. These factors can either speed up or slow down the movement of the ice.


What is glacier drift?

Glacier drift refers to the movement of a glacier across the landscape. This movement is caused by the force of gravity pulling the glacier downhill, as well as the internal deformation of the ice. Glaciers can move both slowly and rapidly, shaping the land and contributing to landform formation.


What evidence would prove that an area was eroded by a glacier?

Evidence of glacial erosion includes U-shaped valleys, striations or grooves on rocks caused by the movement of the glacier, glacial polish on rocks, and moraines (deposits of glacial till). These features indicate the past presence and movement of a glacier in the area.


What is a drumlin caused by?

A drumlin is a long mound of glacial till that is formed by the movement of a glacier. As the glacier flows over the landscape, it reshapes the underlying material into these elongated, teardrop-shaped landforms.


What is a crevasse in a glacier and how does it form?

A crevasse in a glacier is a deep crack or fissure that forms in the ice due to stress and movement. It is typically caused by the glacier's flow over uneven terrain or changes in speed. Crevasse formation can also be influenced by factors such as temperature changes and the glacier's internal structure.


What is a U Shaped valley caused by?

It is caused by a glacier.


Is glacier canyon a real glacier?

No, a glacier canyon is not a real glacier. A glacier canyon is a canyon formed by the movement of a glacier over time, carving out the landscape as it flows.


Is weather caused by the movement of energy in the atmosphere and the fuel for this movement is primarily derived from wind energy?

Weather is primarily caused by the movement of air masses in the atmosphere, driven by temperature and pressure differences. Wind energy is generated by the uneven heating of Earth's surface, which creates air movement. This wind energy influences weather patterns by transporting heat and moisture around the globe.


What are 3 types of glacier movement?

Three types of glacier movement are basal sliding, internal deformation, and flow. Basal sliding occurs when the glacier moves over a layer of meltwater at its base. Internal deformation involves the slow movement of ice crystals within the glacier. Flow refers to the overall movement of the glacier downslope due to gravity.


What is glacial polishing and what cause it?

Glacial polishing is the process by which a glacier smooths and polishes a bedrock surface as it moves over it, causing striations and a shiny, polished appearance. This process is primarily caused by the abrasive action of rocks and sediments carried by the glacier as it moves.