glacier flashcards

1
Q

Abrasion

A

Erosion caused by big rocks at the base of a glacier which scrape underneath the glacier

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2
Q

Arete

A

A sharp ridge formed between two corries cutting back by processes through of erosion and freeze thaw action

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3
Q

Corrie

A

valley-like slope formed by glacial erosion where a valley glacier begins

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4
Q

Conservation

A

Managing the environment in order to preserve and restore it

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5
Q

Bulldozing

A

ice glaciers pushing objects in its path

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6
Q

Drumlin

A

a mound made by deposited glacial till

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7
Q

Erratics

A

rocks deposited by glacier far from where they started

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8
Q

Feeze-Thaw weathering

A

water enters cracks in rocks, and then freezes, therefore expanding, causing pieces of rock to fall off.

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9
Q

Glacial trough

A

A river valley eroded into shape by a glacier: U-shaped rather than V-shaped

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10
Q

Hanging valley

A

A tributary valley to the main glacier, too high & cold to be fully eroded.

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11
Q

land use conflicts

A

disagreements on how land should be used

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12
Q

Moraine

A

Rock debris and eroded material eroded from the valley floor, deposited by glacier.

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13
Q

Outwash

A

Material, mostly sand/gravel left by melt water underneath a glacier

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14
Q

Plucking

A

where melt water freezes on rocks under a glacier, and takes chunks of rock off when the glacier moves

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15
Q

Pyramidal peak

A

Where corries cut back & meet at a point

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16
Q

Ribbon lake

A

A long, narrow lake in glaciated valleys, formed where the glacier had more erosive power

17
Q

Rotational slip

A

When the glacier moves in a circle

18
Q

Till

A

mixture of sand, clay and boulders carried by a glacier and deposited a morraine

19
Q

Truncated spur

A

what was a river valley with interlocking spurs, cut off by a glacier