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they form because they are at a high site in the air
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What are two typyes of glacial deposits?
Two types of glacial deposits are moraines, which are formations of mixed sediment pushed by and deposited from a glacier, and drumlins, which are elongated hills made of glacial till that form parallel to the direction of ice flow.
What are Sedimentary deposits that form in glacial lakes and show definite annual layers called?
They are called varves.
What do we call the layered sediments that form on the bottom of a glacial Lake?
The layered sediments that form on the bottom of a glacial lake are called "glacial lacustrine deposits." These deposits typically consist of fine-grained sediments, such as silt and clay, which settle in calm waters. Over time, they can accumulate in distinct layers, reflecting variations in sediment supply and water conditions.
What types of deposits do you get with glaciers and wind?
With glaciers, you typically get deposits like moraines (made up of rocks and sediment) and glacial till (unsorted material deposited by the ice). Wind deposits mainly consist of sand dunes, known as aeolian deposits, which form in deserts and coastal areas with strong winds.
What are fluvial deposites more likely to do than glacial deposites?
Fluvial deposits are more likely to sort sediments based on size and shape due to the moving water, while glacial deposits tend to mix different-sized sediments. Fluvial deposits often form distinct layers or beds, reflecting changes in flow intensity or sediment composition, whereas glacial deposits are typically unsorted and lack clear layering. Fluvial deposits are common in low-energy environments like rivers and deltas, while glacial deposits are more common in high-energy settings like mountain valleys and ice sheets.
What does the presence of glacial deposits near th equator tell about the areas in which those deposits were found?
The presence of glacial deposits near the equator suggests that the climate in those areas was significantly cooler in the past, allowing glaciers to form and deposit materials. This indicates that the Earth's climate at that time was different from what it is today, with lower temperatures supporting the existence of glaciers in regions where they are not typically found today.
What are large deposits of boulders called?
The debris of boulders eroded and carried down by glaciers will eventually form moraines (mounds) where the front of the glacier melts and retreats, leaving the debris behind. Moraines can be high and wide enough to form a dam, behind which glacial melt water is trapped and lakes are formed.
When glaciers retreat they leave behind deposits of?
When glaciers retreat, they leave behind deposits of sediment known as glacial till, which consists of a mixture of clay, silt, sand, and gravel. These deposits can form various landforms, such as moraines, drumlins, and outwash plains. Additionally, meltwater from the glaciers can create stratified deposits, known as outwash, which are sorted by size due to the movement of water. These glacial deposits play a significant role in shaping the landscape and influencing soil composition in the areas they affect.
Depressions left by melted blocks of ice in glacial deposits?
The depressions left by melted blocks of ice in glacial deposits are called kettle holes. They are circular or oval-shaped depressions that form when large chunks of ice left behind by a retreating glacier become buried in sediment. When the ice eventually melts, it creates a hole in the ground.
What is a feature created by glacial deposites?
A feature created by glacial deposits is a moraine. Moraines are accumulations of rocks, sediment, and soil that have been pushed along and deposited by a moving glacier. They can take the form of ridge-like mounds or long, winding ridges across the landscape.
Which is a landscape feature created by glacial deposits?
A moraine is a landscape feature created by glacial deposits. Moraines are formations of unsorted rock debris that were transported and deposited by a glacier as it moved and melted. They can be found in various forms such as terminal moraines at the end of glaciers or lateral moraines along their sides.
What are glacial moraines are best described as?
Glacial moraines are accumulations of rock, soil, and debris carried and deposited by a glacier. They form as the glacier flows, picking up material from the land surface and carrying it along. Once the glacier retreats, it leaves behind these deposits, creating distinctive ridges and mounds.
