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Are valley glaciers longer than continental glaciers?
No. Valley glaciers are a few miles to a few tens of miles long. Continental glaciers are hundreds to thousands of miles long.
What is a glaciers made of?
Glaciers are made of ice that has been formed a long time ago.
How long does it take water erosion to erode bedrock?
Wind erosion is an ongoing process.
What are two kinds of glaciers and how are they different?
Two kinds of glaciers are valley glaciers and ice sheets. Valley glaciers are long, narrow glaciers that form in mountain valleys, while ice sheets are vast, continent-sized glaciers that cover large land areas. The main difference is in their size and location, with valley glaciers typically being smaller and found in mountainous regions, while ice sheets are much larger and exist in polar regions.
What category does glaciers have?
Glaciers fall under the category of physical geography, specifically geomorphology. They are large bodies of ice that form over long periods of time and have a significant impact on landscapes and ecosystems.
What is glacial striations?
Glacial striations are long, parallel scratches or grooves on bedrock caused by the movement of glaciers. As glaciers advance and retreat, they can pick up rocks and debris, which then act like sandpaper as the glacier moves, creating these striations on the underlying bedrock. Studying these features can provide information about the direction and extent of past glacial movement.
What are glacier grooves?
Glacier grooves are long, parallel scratches or striations on bedrock surfaces that are formed by the movement of glaciers. As a glacier flows over rocky surfaces, it picks up rock fragments and debris, which then act like sandpaper, carving long, linear grooves into the bedrock. These grooves provide valuable insight into the direction and extent of past glacial movements.
How are glacial grooves made?
Glacial grooves are created when rocks embedded in the base of a glacier scrape the underlying bedrock as the glacier moves. The immense pressure and friction exerted by the moving glacier cause the rocks to plow into the bedrock, leaving long, parallel grooves behind. These grooves are a common feature in areas that were once covered by glaciers during the last ice age.
Why are cobbles and boulders composed of Precambrian gneiss commonly found on top of the surface bedrock in the Catskills?
Cobbles and boulders composed of Precambrian gneiss are commonly found on the top of the surface bedrock in the Catskills because they were deposited there by glacial action during the last Ice Age. Glaciers transported these rocks from their original bedrock source areas and left them scattered across the region as they melted. The resistant nature of gneiss allows these rocks to remain on the surface long after the glaciers have retreated.
How did the ice age glaciers affect physical features of north America?
Glaciers changed the face of North America with the following effects:An ice sheet covered most of Canada.The southwest received heavy rains.
Which erosional feature most likely formed on the surface of the bedrock under the glacial ice?
Striations would most likely form on the surface of the bedrock under the glacial ice. Striations are caused by the movement of large rocks embedded in the base of a glacier scraping across the bedrock, resulting in long, parallel grooves being carved into the bedrock surface.
Are valley glaciers longer than continental glaciers?
No. Valley glaciers are a few miles to a few tens of miles long. Continental glaciers are hundreds to thousands of miles long.
What agent of erosion is striations?
Striations are usually caused by glaciers, which act as an agent of erosion by scraping and dragging rocks and debris across the surface of the Earth. This creates long, linear grooves called striations in the bedrock below.
What is Long narrow glaciers that form between mountains?
Valley Glaciers!
How have glaciers helped form Long Island?
Glaciers have helped form Long Island in the sense that millions of years ago, the glaciers eroded the block of land that is now known as Long Island.
What are long narrow glaciers form between mountains and are common in the Alps and the Andes.?
valley glaciers
How long does it take for soil to transform to bedrock?
58 years
