Wednesday, October 10, 2012

Glaciers and Erosion

Describe two ways in which a glacier can cause erosion.

Till and outwash are glacial deposits. Explain how till and outwash are different.
Going Beyond :
What do you think the map above represents? What do you think the color key means? 


91 comments:

  1. Till is a mix of different sized sediments dropped from the base of a glacier and can cover large areas of land. Outwash is Material deposited by a glacier.
    I think the map represents the US during the ice age. I think the colors represent the height of the glaciers.

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  2. Purple = not a lot of erosion
    Red = a lot of erosion
    Green = not much erosion
    Brown = no erosion

    :S :P :F :O :L :D :B :C :) :( :X

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  4. Two ways that glaciers cause erosion are they can drag rocks to leave groves in the ground. Also when it melts it can wash out the land. Till and outwash are different because outwash is when the materiel's are deposited from melting glaciers and till is a mixture of different sized sediment. I think the map represents how cold and where the most glaciers are. I think each color tells how cold it is in different areas or where the most glaciers in that area

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  5. WHAT DOES TILL & OUTWASH MEAN MR. RUBY!!!!!!!!!!!!!!

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  6. Well if you think about it the glacier is a cheese grader and the land is the poor cheese well that is how the ground will be messed up.

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  7. They erode in two ways: abrasion and plucking.

    Abrasion can only occur when the glacier is moving. Subglacial debris embedded in the base and sides of the glacier scrapes the valley base and walls as it moves through the valley.

    Plucking involves the glacier moving over a resistant outcrop of rock where pressure-melting creates meltwater. The meltwater then flows to an area of low pressure where is subsequently refreezes attaching itself to both the surrounding rock and the glacier itself. The glacier then advanced physically ripping the rock out of the valley.

    Till is deposited by glacial ice. Till is deposited almost exclusively in the ablation zone either by being plastered onto the underlying glacial bed by flowing ice or by sloughing off the glacier's surface as the ice melts. Till are generally unstratified and commonly consist of large rock fragments surrounded by a finer grained matrix of sand, silt, and clay.

    Outwash is Sand and gravel deposited by melt water. Outwash are typicaly well sorted and stratified so they differ sharply from tills, which are unsorted and unstratified

    Credit goes to wikianswers.com.

    The image above represents glacial till.

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  8. Purple = mountain glacier
    Red = a lot of erosion
    Green = ice glacier
    Brown = no erosion

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  9. When glaciers form gravity starts pulling them them and they slide over the grounds and starts pulling the Earth


    Till is unsorted and outwash is sorted

    The colors represents the ice age

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  10. a glacier will create a lot marks on the ground and on the mountains there are big holes in the sides called cirque.The difference between till and out wash is that till is the lose sediment under a glacier.out wash is gravel an rocks being carried in streams from a melting glacier.

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  11. Two ways a glacier can cause erosion is that they can scrape against rock and make little pieces then carry those pieces away. Another way a glacier can cause erosion is that it could be a valley glacier and it could be slowly eroding the valley. Till is different sized sediments falling from the base of a retreating glacier. Out wash is material deposited from the melt water of the glacier.

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  12. it could be two ways it makes groves in the rocks and how there are cold and warm

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  13. it could take the trees down and cause erosion and drags on rock and drag rocks down hill.

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  14. Glaciers can cause erosion by quickly melting makes water flow fast removing sediment.Also plucking can occur which is when the movement of ice pulls pieces of rock out of the side of a hill and deposits the sediment elsewhere.

    Till is boulder clay or other unstratified sediment deposited by melting glaciers or ice sheets.
    Outwash is
    Material carried away from a glacier by meltwater and deposited beyond the moraine.

    The difference between till and outwash is till is unsorted and outwash is sorted.

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  15. Quickly melting glaciers can cause water to flow fast sediments, Also glaciers do move and when they do move it forms landforms such as flute. also plucking can also occur when the movement of ice pulls pieces of rock out of the side of a hill and places the sediment somewhere else.

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  16. slides and crushis

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  17. Word of the day: Arasion? o3o

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  18. Till is unsorted and outwash is sorted.

    Two ways a glacier can cause erosion is that they can scrape against rock and make little pieces then carry those pieces away, another way is a glacier will create a lot marks on the ground and on the mountains there are big holes in the sides.

    The colors represents the ice age.

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  19. Two ways that glaciers cause erosion are they can drag rocks to leave groves in the ground. Also when it melts it can wash out the land. Till and outwash are different because outwash is when the materiel's are deposited from melting glaciers and till is a mixture of different sized sediment. I think the map represents how cold and where the most glaciers are. I think each color tells how cold it is in different areas or where the most glaciers in that area

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  20. A glacier will create a lot marks on the ground and on the mountains, there are big holes in the sides called cirque. The difference between till and out wash is that till is the lose sediment under a glacier. Out wash is gravel and rocks being carried in streams from a melting glacier.

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  21. the colors are for different type of glacieal movements and stuff

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  22. Glaciers can cause erosion by quickly melting that can cause water to flow fast which removes sediment. when glaciers form gravity starts pulling them and they slide over the ground and it pulls up the earth.



    till is unsorted and outwash is sorted.

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  23. A glacier will create a lot marks on the ground and on the mountains, and some other stuff i think

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  24. Quickly melting glaciers can cause water to flow fast ; Also glaciers do move and when they do move it forms landforms such as flute.Also plucking can also occur when the movement of ice pulls pieces of rock out of the side of a hill and places the sediment somewhere else

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  25. Till is different sediments dropped from the base of a glacier, outwash is sediment deposited from a glacier.
    The map represents the U.S.A. in the ice age.

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  26. purple not a lot of erosion red tons of erosion blue a little erosion no erosion

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  27. the differance between stuff is stuff

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  28. Two ways that glaciers cause erosion are When they melt they can wash out land and they can cause erosion when they freeze causing ice wedging. The difference between till and out wash is till is the sediment left by ice and out wash is the running water coming off the glacier. I think the map represents where it is easiest and hardest to find glaciers in America.

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  29. Pink: Driftless Area

    Dots: Loes

    Red: Glacial Till

    Green: Glacial Lacustrine Deposits.

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  30. Till is unsorted and outwash is sorted.

    Two ways a glacier can cause erosion is cause it can scrape against a rock and make it brake into little pieces, another way is it can dig up the ground and make a lot of holes.

    The colors represent the ice age And glaciers.

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  31. glacier can slowly wear down dirt and gravel.
    Till: the rocks the fell out of the bottom of a glacier.
    Outwash:Material deposited by meltwater from a glacier.
    I think the colors represent how cold it is in certain areas.

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  32. it must be remembered that glacers do move. when they do this it forms landforms such as flute, rouche mountee and glacial striations.
    Till or sediment trapped in a glacier is dragged along a surface of the ground, creating a line

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  33. the colors mean,driftless area,glacial till,glacial lacustrine deposits,loess

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  34. the difference between outwash and till is that till is a mixture of different- sized sediment that is dropped from the base of a retreating glacier and can cover huge areas of land and outwash is material deposited by meltwater from a glacier.

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  35. glaciers can wear down dirt
    till means rocks fall out of the bottom of a glacier
    outwash is materal deposited water from glacier
    colors represent the weather wether its warm or cold

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  36. color key:
    RED: glacial till
    DRIFTLESS AREA: purple
    GLACIAL LACUSSTRINE DEPOSITS:green
    LOESS: pink doted lines

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  37. 1.glaciers rub against rocks and rub of sediments and create erosion
    2.glaciers scrape against mountains and create holes and also rub of sediments
    till is the remaining sediments from a glacier and outwash is material deposited from melted water from the glacier. the difference is till is dry and sandy sediments and out wash is wet snowy sediments.

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  38. glacier can slowly wear down dirt and gravel.
    Till: the rocks the fell out of the bottom of a glacier.
    Outwash:Material deposited by meltwater from a glacier.

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    Replies
    1. NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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  39. Two ways a glacier can cause erosion is transporting and scattering.
    Till is a mixture of different sized sediments. Outwash is material deposited by the meltwater from a glacier, most often beyond the end of a glacier.
    pink: glacial lacustrine deposits
    red: glacial till
    blue: driftless area
    green: loess

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  40. One way they can cause glaciers is by melting causing them to slide. They can also cause avelanches.

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    1. The map represents the size or how often erosions happen.

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  41. 1. Glaciers pick rocks up and drag them across the ground.
    2. Glaciers bump into mountains and make holes.

    Till is sand, mud and other minerals, and outwash is melted water from the glacier.

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  42. Glaciers can cause erosion by moving rocks and breaking rock

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  43. glaciers carrie rocks and cause erosion
    \

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  44. glaciers pick up rocks and drag them across the ground
    glaciers crash into mountains and make holes

    till is mud and other minerals outwash is melted water from the glaciers

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  45. Glaciers cause erosion by picking up rocks and moving them different places

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  46. Two ways a glacier can cause erosion are transporting and scattering. Till is a mixture of different sized sediments. Outwash is material deposited by the melted snow and ice from a glacier, most often.

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  47. Glaciers can cause erosion by transporting materials while they move, or by water, and they can scatter things everywhere, dropping things off as they move.Till is a mixture of sediments of different sizes. Outwash is material deposited by the melted water of a glacier, mostly on the edges of a glacier. Till is different from outwash because till isn't from the melting of the glacier.
    Pink: Glacial Lacustrine
    Red: Till
    Blue: Areas with out any drift
    Green: Loess

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    1. This comment has been removed by a blog administrator.

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  48. glaciers can cause erosion by breaking and moving rocks

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  49. Two ways glaciers can cause erosion are transporting things and scattering them. Till and outwash are different because till is a mixture of different sized sediments, and outwash is a material deposited by the meltwater from a glacier, mostly beyond the end of a glacier. The map represents a picture of glaciers happening. The green represents loess, the red represents glacial till, the blue represents a driftless area, and the pink represents glacial lacustrine deposits.

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  50. Till is Sediment that can turn in to mud
    Out wash is when things get completely ruined and with till it does not get completely ruined

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  51. Outwash is minerals deposited by the melting ice and snow. Till is a mix of different sediments.

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  52. Two ways glaciers can cause erosion are transporting things and scattering them. Till and outwash are different because till is a mixture of different sized sediments, and outwash is a material deposited by the meltwater from a glacier, mostly beyond the end of a glacier. The map represents a picture of glaciers happening. The green represents loess, the red represents glacial till, the blue represents a driftless area, and the pink represents glacial lacustrine deposits.

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    1. your not that smart roger you copy and pasted

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  53. The map represents a map with colors on it the represents stuff moving in different colors

    The colors in the key thingy represents stuff that is shown on the map. If means different things.

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  54. Two ways that glaciers cause erosion are they can drag rocks to leave groves in the ground. And when it melts it can wash out the land. Till and outwash are different because outwash is when the materiel's are deposited from melting glaciers and till is a mixture of different sized sediment. I think the map represents how cold and where the most glaciers are. I think each color tells how cold it is in different areas or where the most glaciers in that area.

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  55. Glaciers move rocks across the ground, transporting and scattering. When a glacier crashes into a mountain it creates holes. Till is a mixture of different sized sediments.

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  56. When a glacier moves across land a makes scrapes and grooves in the land surface.

    As the glacier moves across land it picks up different substances and moves them to different places.

    Till, is sand, clay and silt that is left behind.
    Outwash, Material deposited by the meltwater of a glacier.

    I think that the colors on the map represent certain kinds of erosion in various place of the United States.

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  57. This comment has been removed by a blog administrator.

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  58. whoistherealgreenmonstaWednesday, October 10, 2012

    This comment has been removed by a blog administrator.

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  59. when they melt they slide and when they slide they drag rocks
    alivia

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  60. When a glacier moves across land a makes scrapes and grooves in the land surface.

    As the glacier moves across land it picks up different substances and moves them to different places.

    Till, is sand, clay and silt that is left behind.
    Outwash, Material deposited by the meltwater of a glacier.

    I think that the colors on the map represent certain kinds of erosion in various place of the United States.

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  61. it the weather saying were there is glacier and outwashs

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  62. glacier can slowly wear down dirt and gravel.
    Till: the rocks the fell out of the bottom of a glacier.
    Outwash:Material deposited by meltwater from a glacier.

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  63. A glacier will create a lot marks on the ground and on the mountains there are big holes in the sides called cirque.The difference between till and out wash is that till is the lose sediment under a glacier.out wash is gravel an rocks being carried in streams from a melting glacier.

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  64. when the bottom layer of a glacier melts the top layers slide.
    When glaciers slide across the ground it will create scrapes and groves.

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  65. This comment has been removed by a blog administrator.

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  66. Transporting and scattering are two ways glaciers can cause erosion. Till is a mixture of different sized sediments and outwash is a material deposited by meltwater mostly on the edge of a glacier. This map represents types of glaciers and where they are happening.

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  67. Its the Weather Say there is Glaciers and Outwashs

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  68. Till is Sediment that can turn in to mud
    Out wash is when things get completely ruined and with till it does not get completely ruined!!!!!!!!!!!!!!!!!!!!!!!

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  69. when they slide they drag rocks and when they melt they side. till and out wash are different because till get land ready for crops to grow and outwash is when sediment gets washed away.

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  70. Till is deposited by glacial ice. Till is deposited almost exclusively in the ablation zone either by being plastered onto the underlying glacial bed by flowing ice or by sloughing off the glacier's surface as the ice melts. Till are generally unstratified and commonly consist of large rock fragments surrounded by a finer grained matrix of sand, silt, and clay.

    Outwash is Sand and gravel deposited by melt water. Outwash are typicaly well sorted and stratified so they differ sharply from tills, which are unsorted and unstratified

    wikianswers.com

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  71. This comment has been removed by a blog administrator.

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  72. I think the colors represent the different tempertures in each area.

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  73. Transporting is one way and scattering is another way. Till is a mixture of differ in sized sediments. And outwash is a material deposited from melt water mostly on the edge of a glacier.

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  74. Outwash is minerals deposited by the melting ice and snow. Till is a mix of different sediments.

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  75. Some glaciers slowly wear down soil.
    Till: the rocks fall out of the bottom of a glacier.
    Outwash: material deposited by melted water from a glacier.

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  76. Till is sediment left by the glacier.
    Outwash is left by the running water when the glacier melts.

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  77. Glaciers rub against rocks and rub of sediments and create Erosion.
    Glaciers scrape against mountains and create holes and also rub of sediments
    till is the remaining sediments from a glacier and outwash is material deposited from melted water from the glacier. the difference is till is dry and sandy sediments and out wash is wet snowy sediments.

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  78. "Two ways a glacier can cause erosion is that they can scrape against rock and make little pieces then carry those pieces away. Another way a glacier can cause erosion is that it could be a valley glacier and it could be slowly eroding the valley. Till is different sized sediments falling from the base of a retreating glacier. Out wash is material deposited from the melt water of the glacier."

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    Replies
    1. Not Plagiarized from Aaran H.

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  79. When a glaciers travel across land it can make grooves.Glaciers can pickup different things and carry them to other places.

    Till is sand,clay,and silt that is left behind from glaciers. Outwash is melted water from glaciers.

    I think that the colors stand for different types of erosion.


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