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The gouging of bedrock because of glaciers results in?
The gouging of bedrock by glaciers results in the creation of distinctive landforms such as U-shaped valleys, fjords, and cirques. This erosion process also leads to the formation of glacial striations, which are scratches on the rock surface that indicate the direction of glacial movement. Additionally, the removal of material from the bedrock can contribute to the landscape's overall topography, influencing drainage patterns and ecosystems in the area.
A process called plucking the rocks dragged by glaciers produce grooves and scratches in the bedrock?
Plucking is a process where glaciers erode the underlying bedrock by freezing onto rocks and pulling them away as the glacier moves. This action creates grooves and scratches in the bedrock, known as glacial striations. These markings serve as evidence of the glacier's movement and direction, providing valuable information about past glacial activity. Ultimately, plucking contributes to the overall shaping of the landscape by carving out features such as valleys and fjords.
How are glacial valleys straightened?
Glacial valleys can be straightened through a process called glaciation. As glaciers move down valleys, they can reshape them by eroding and bulldozing material, creating straighter and smoother profiles. This process is known as glacial erosion and can result in the formation of U-shaped valleys.
Is evidence of the past existence of glaciers?
U-shaped valleys, erratic boulders and rocks, modern soils, glacial striations on bedrock, the Great Lakes in the United States, extinction events, and massive redistribution of soils and rock.
What is evidence that a glaciers was at?
Presence of glacial striations, moraines, and glacial valleys are evidence that a glacier was there. These features are formed by the movement and deposition of ice, rocks, and sediment as the glacier advances and retreats. Additionally, erratic boulders, cirques, and U-shaped valleys are also typical evidence of past glacial activity.
U-shaped valleys and parallel grooves in bedrock are characteristics of erosion by?
glacial ice
What are three glacial features formed by erosion?
Cirques are bowl-shaped depressions formed by glacial erosion at the head of a glacier. Arêtes are narrow ridges that separate two adjacent glacial valleys. Roche moutonnées are glacier-smoothed bedrock outcrops with a gentle up-glacier slope and a steep down-glacier slope.
What valleys are small glacial valleys that join deeper main valleys?
U-shaped is wrong that's what it says on my worksheet! the definiton of u shaped valleys are bowl like depressions!
What are flooded glacial valleys?
Flooded glacial valleys are valleys carved out by glaciers during the last Ice Age which are now submerged under water. These valleys can form deep fjords, where seawater has filled in the glacially-carved depressions. Examples include the fjords of Norway and Alaska.
What kind of terrain and landform would indicate prior existence of a valley glacier?
U-shaped valleys, moraines, cirques, and hanging valleys are typical landforms that indicate the prior existence of a valley glacier. Additionally, striations (scratches left on bedrock), glacial till, and erratic rocks deposited in the area are also signs of past glacial activity.
Glacial valleys shaped differently from river valleys?
u shaped valley..
In a process called blank a glacier scours the bedrock as it moves?
In a process called "abrasion," a glacier scours the bedrock as it moves, grinding away the surface and shaping the underlying rock through the friction of debris carried along by the glacier. This process helps to create glacial valleys, cirques, and other landforms shaped by glacial erosion.
Describe the effects of glaciers on the drainage of the shield?
Glaciers can alter the drainage patterns of a shield by creating valleys and basins through erosion. As glaciers move, they carve out new paths for water to flow, influencing the direction and speed of drainage. Glacial meltwater can also interact with underlying soil and rocks, affecting groundwater movement and storage.
What shape valley does a glacier leave?
Glacial valleys (also known as glacial troughs) tend to be u-shaped, as opposed to river valleys which are v-shaped.
How are glacial valleys straightened?
Glacial valleys can be straightened through a process called glaciation. As glaciers move down valleys, they can reshape them by eroding and bulldozing material, creating straighter and smoother profiles. This process is known as glacial erosion and can result in the formation of U-shaped valleys.
The flooded glacial valleys of Scandinavia are known as?
Fjords.
Is evidence of the past existence of glaciers?
U-shaped valleys, erratic boulders and rocks, modern soils, glacial striations on bedrock, the Great Lakes in the United States, extinction events, and massive redistribution of soils and rock.
