Brainscape's Knowledge GenomeTM

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


See full index

Geography > Minnesota > Flashcards

Minnesota Flashcards

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

Which case study is Minnesota for?

A

Landscape associated with the action of ice sheets.

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

The landscape results from glacial activity throughout which geological time period?

A

Quaternary period

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

When did this start and finish?

A

2 million years ago to the present.

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

What was the name of the main ice sheet that covered much of North America?

A

Laurentide ice sheet

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

How thick was the Laurentide ice sheet?

A

1km thick

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

Across Minnesota there are belts of which types of rock?

A

Sedimentary (softer)

Volcanic (harder)

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

What rock type have many of volcanic rocks metamorphosed into?

A

Greenstone

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

When did tongues of ice (lodes) extend from the Laurentide ice sheet across Minnesota today?

A

75,000years ago

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

Name examples of lakes that have fromed in the erosional ellipoid basin that the ice sheet carved

A

Upper and lower Red lakes

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

Where was he elliptod basin eroded deeply due to there being weaker rocks?

A

Arrowhead

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

What are the weaker rocks called?

A

Shale

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

Name two ice lobes that advanced across Minnesota 75,000 years ago

A

Wedena lobe and Des Moines lobe

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

What type of till did the Wadena lode deposit?

A

Red and sandy

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

Name depositional landforms left by the Wadena Lobe

A

Itasca moraine

Drumlin fields at Otter tail and Wadena county

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

The Des Moines lobe left behind a different type of till. Describe it.

A

Tan
Clay
Rich
Calcareous

Because the ice sheet had eroded limestone further north

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

How deep are some of the till deposits left behind?

A

Over 100m

17
Q

Name a proglacial lake created next to the Laurentid ice sheet.

A

Lake Agassiz

18
Q

What area did this lake cover?

A

440,000squ km

19
Q

Where did the lake overflow the recessional moraine damming it in?

A

Browns valley

20
Q

What was the river called that made its way fom the lake to the sea when the moraine was breached?

A

Glacial River Warren

21
Q

How high are the highest peas in Minnesota today?

A

500- 700m above sea level. (They have been greatly eroded by the ice sheet)

Geography (6 decks)

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