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Geography > SG3A- A case study of one landscape associated with the action of valley glacier: Lake District > Flashcards

SG3A- A case study of one landscape associated with the action of valley glacier: Lake District Flashcards

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1
Q

Where is the lake district located?

A

North west england of the county of Cumbria, a little below the scottish border.

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2
Q

What is the key noticeable glacial period that impacted the shape of the Lake District?

A

The Divension Glacial peaked around 18,000 years ago,

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3
Q

An example of a corrie?

A

Red Tarn

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4
Q

What is the size of Red Tarn?

A

Height of tarn above sea level is 720m and the vertical height of the back wall is 216m.

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5
Q

An example of an arete?

A

Striding Edge

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6
Q

What is the length of the arete?

A

2km

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7
Q

An example of an Hanging Valley?

A

Glenridding Beck

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8
Q

What is length of the Glenridding Beck?

A

5km

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9
Q

An example of a glacial trough?

A

Patterdale

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10
Q

What is the length of the glacial trough Patterdale?

A

13km

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11
Q

An example of a ribbon lake?

A

Ullswater

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12
Q

What is the length of the ribbon lake ullswater?

A

11km long

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13
Q

An example of a roche moutonee

A

Norfolk Island

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14
Q

What is the area of the roche moutonee?

A

1000m squared

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15
Q

An example of the hummocky moraine?

A

Glenridding Beck

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16
Q

An example of end moraine?

A

Red Tarn

17
Q

An example of a drumlin?

A

Eden Vale

18
Q

An example of an erratic?

A

Allonby, North west coast of Lake District.

19
Q

Why is the hummocky moraine present?

A

mounds of glacial till left by the retreating corrie glacier. Such tills are often left by the ice as it melts.

20
Q

Why is end moraine present?

A

Where glacial ice of the corrie was thin, deposited occurred building up a moraine

21
Q

Why is drumlins present?

A

Where glacier was thinning in zone of ablation, the energy levels were low and competence of the ice was low. Deposition of sub glacial till occur creating swarms of drumlins.

22
Q

Why is erratics present?

A

Large boulder transported by glacier from Criffel and then deposited in Alloby. The boulder grande which is different to the bedrock it sits on.

23
Q

What are the physical factors that influence the formation of landforms in the Lake District?

A
  • Latitude
  • Altitude
  • Geology
24
Q

How does latitude impact the area of Lake District?

A

The lake district is at a latitude of 54 degrees N. The lake district is a doomed upland area which has been pushed up by a great earth movements many millions of years ago. The location of the lake district results in colder climate due to dispersed sun’s rays.

25
Q

How does the altitude impact the area of the Lake District?

A

All the land in England higher than 3000 feet above sea level lies within the national park, including scafell Pike. These higher altitudes create a cold climate (15 degrees in summer, 1 degree in the winter).

26
Q

What are the three major zones of rock types in the Lake District?

A
  • Skiddaw group
  • Borrowdale volcanic group
  • Windermere group
27
Q

What type of resistance is the rocks in the Skiddaw groups?

A

Not resistant to weathering and erosion.

28
Q

What do the Skiddaw group form?

A

Scenery of more rounded mountains.

29
Q

What type of resistance is the rocks in the Borrowdale group?

A

Resistant rocks

30
Q

What do the Borrowdale group form?

A

Highest and craggiest mountains e.g. Scafell pike and Helvellyn.

31
Q

What type of resistance is the rocks in the Windermere group?

A

Least resistant to weathering and erosion

32
Q

What are the rocks called in the Skiddaw group?

A

mainly slates which is a metamorphic rock originally derived from mudstone and shale.

33
Q

What are the rocks called in the Windermere group?

A

Mainly sedimentary rocks e.g. mudstones, sandstones, siltstones.

34
Q

What are the rocks called in the Borrowdale Volcanic?

A

Mainly igneous rocks (e.g. basalt, rhyolite, andesite and tuffs).

35
Q

Which zone of rocks are there mainly corries?

A

Borrowdale volcanic group.

36
Q

How does the landscape system change over time from millennia?

A

Formation of arete, corrie, drumlin, ice from the glacier.

37
Q

How does the landscape change over seasonal changes?

A

Freeze thaw, vegetation, water, plucking and abrasion.

38
Q

How does the landscape change in seconds?

A

Rock fall

Geography (34 decks)

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