Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography > Glaciation > Flashcards

Glaciation Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

What is glaciation?

A

The process of glaciers forming and expanding due to the accumulation of snow and ice.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

True or False: Glaciation only occurs in cold regions.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the two main types of glaciers?

A

Alpine glaciers and ice sheets.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Fill in the blank: Glaciers are often referred to as _______ rivers of ice.

A

slow-moving

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the primary cause of glaciation?

A

A combination of climate factors that lead to the accumulation of snow and ice.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is an ice sheet?

A

A large mass of glacier ice that covers surrounding terrain and is greater than 50,000 square kilometers in area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the process by which glaciers move downhill?

A

Glacial flow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is an example of a famous ice sheet?

A

The Antarctic Ice Sheet.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a cirque glacier?

A

A glacier that occupies a bowl-shaped depression on a mountainside.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

True or False: Glacial retreat can lead to the formation of new landforms.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is an erratic?

A

A large boulder that was transported and deposited by a glacier.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a moraine?

A

A landform made up of rock and sediment that has been carried and deposited by a glacier.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the process by which glaciers erode the land beneath them?

A

Glacial abrasion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a drumlin?

A

An elongated hill that was formed by the movement of a glacier.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

True or False: Glaciers can impact global climate patterns.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is a fjord?

A

A long, narrow inlet with steep sides or cliffs, created by glacial erosion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is an ice age?

A

A period of long-term reduction in the temperature of Earth’s surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a horn?

A

A sharp, pyramid-like peak that forms at the intersection of several cirque glaciers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

True or False: Glaciers can store a significant amount of freshwater.

A

True

20
Q

What is a glacial erratic made of?

A

A different type of rock than the bedrock where it is found.

21
Q

What is a hanging valley?

A

A tributary valley that is higher than the main valley due to glacial erosion.

22
Q

What is a tarn?

A

A small mountain lake that forms in a cirque basin.

23
Q

True or False: Glaciers can cause significant changes in sea level.

A

True

24
Q

What is a kame?

A

A small, steep-sided mound of sand and gravel that was deposited by a melting glacier.

25
Q

What is a roche moutonnée?

A

A rock formation that has been sculpted and smoothed by glacial erosion.

26
Q

True or False: Glacial erosion can create U-shaped valleys.

A

True

27
Q

What is a medial moraine?

A

A moraine that forms when two glaciers merge and their lateral moraines combine.

28
Q

What is a proglacial lake?

A

A lake that forms in front of a glacier due to melting ice and glacial retreat.

29
Q

True or False: Glaciers can influence the Earth’s albedo.

A

True

30
Q

What is a pingo?

A

A dome-shaped mound of earth-covered ice found in permafrost regions.

31
Q

What is a terminal moraine?

A

A moraine that marks the furthest advance of a glacier.

32
Q

True or False: Glacial till is composed of well-sorted sediments.

A

False

33
Q

What is a glacial erratic’s size compared to the surrounding rocks?

A

Significantly larger.

34
Q

What is a kettle lake?

A

A shallow, sediment-filled body of water formed by a retreating glacier.

35
Q

True or False: Glacial striations are caused by the melting of ice.

A

False

36
Q

What is a fjord lake?

A

A lake that forms in a fjord after glacial retreat.

37
Q

What is a crevasse?

A

A deep crack or fracture in the ice of a glacier.

38
Q

True or False: Glacial surges are slow and gradual movements of ice.

A

False

39
Q

What is a glacial outwash plain?

A

A plain formed by the deposition of sediments carried by glacial meltwater.

40
Q

What is a pater noster lake?

A

A series of glacial lakes connected by a single stream or river.

41
Q

True or False: Glacial polish is a result of glacial erosion.

A

True

42
Q

What is a glaciologist?

A

A scientist who studies glaciers and glaciation.

43
Q

What is a lateral moraine?

A

A moraine that forms along the sides of a glacier.

44
Q

True or False: Glacial surge events are rare and unpredictable.

A

True

45
Q

What is a nunatak?

A

A peak or mountain ridge that protrudes through the surface of a glacier.

46
Q

What is a firn?

A

A type of dense, granular snow that is transitional between snow and glacial ice.

Geography (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions