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When boulders sand clay and silt that drop from a glacier when it retreats are called?
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∙ 7y ago
A moraine
drumlins
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∙ 7y ago
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What is a ridge or mound of debris chiefly boulders gravel sand and clay?
A ridge or mound of debris chiefly composed of boulders, gravel, sand, and clay is called a moraine. Moraines are deposited by glaciers and can be found in various formations, such as lateral moraines along the sides of glaciers or terminal moraines at the end of a glacier's advance. Moraines are important features in understanding past glacial activity.
Why do some glacial deposition have sorted sediments while others do not?
Glacial sediments that are sorted are due to flowing water in the glacier. Unsorted sediments are those that have thawed out of the ice randomly.
What are Detritus sedimentary rocks subdivided according to?
Detrital sedimentary are classified according to the size and shape of their sediments.
Why does a glacier ac t like sandpaper?
Sand paper is essentially a sheet of strong paper with grains of hard material glued to it. This rough hard layer of material makes sand paper "abrasive". This means that it is able to wear down or away another material by being rubbed against it. This process is known as abrasion. The base of a glacier typically carries lots of sediment varying in size from clay particles, all the way up to boulders. These act like the grains of material attached to the paper in sand paper. As the glacier moves they rub or scrape against the underlying soil and bedrock, wearing it away in a similar manner (but on a much larger scale) to the way sand paper can be used
What kind of rock is made from the materials at the bottom of rivers?
Depends on the river and where it is. Generally speaking, the river bottom will contain silt, clay, sand, gravels, even possibly boulders.
What is it called when boulders sand clay and silt drop from a glacier?
Slump
When boulders sand clay and silt drop from a glacier it is called?
The material formed is called till. The structure formed is called a moraine.
What is a moraine made of and how those it get somewhere?
Moraine is the accumulation of rock and detritus on the surface of the glacier. When the glacier retreats or melts, this material is left behind, and may be recognized by its 'unsorted' nature, and the high proportion of clay particles. It may also have large boulders, which are rounded at the corners only.
What is a ground up rock and boulders in a hard stony clay called?
till
What is a ridge or mound of debris chiefly boulders gravel sand and clay?
A ridge or mound of debris chiefly composed of boulders, gravel, sand, and clay is called a moraine. Moraines are deposited by glaciers and can be found in various formations, such as lateral moraines along the sides of glaciers or terminal moraines at the end of a glacier's advance. Moraines are important features in understanding past glacial activity.
What is the largest boulders cobbles pebbles sand silt clay?
boulders
What are two different sediment type examples?
* Clay * Silt * Sand * Pebbles * Cobbles * Boulders * Gravel
What is glaciers deposition?
It's glacial deposition not glacier deposition.Glacial deposition:An advancing ice sheet carries an abundance of rock that was plucked from the underlying bedrock; only a small amount is carried on the surface from mass wasting. The rock/sediment load of alpine glaciers, on the other hand, comes mostly from rocks that have fallen onto the glacier from the valley walls. The various unsorted rock debris and sediment that is carried or later deposited by a glacier is called till. Till particles typically range from clay-sized to boulder-sized but can sometimes weigh up to thousands of tons. Boulders that have been carried a considerable distance and then deposited by a glacier are called erratics.Erratics can be a key to determining the direction of movement if the original source of the boulder can be located.
What is the mass of clay silt sand and boulders that covers the US deposited by?
This is most likely glacial till (in the past this was commonly known as boulder clay) and was deposited by glaciers.
In what order are sediments deposited by running water that slows down?
Boulders-cobbles-pebbles-sand-silt-clay
Why do some glacial deposition have sorted sediments while others do not?
Glacial sediments that are sorted are due to flowing water in the glacier. Unsorted sediments are those that have thawed out of the ice randomly.
What is an outflow glacier?
Glacial PlainA l outwash plain is a stratified deposit of sand and gravel transported by water from a melting glacial ice sheet.
