Expand Erosional Features and then double‑click and select Mt. Rainier.

Expand Erosional Features and then double‑click and select Mt. Rainier.

Features line item

Mount Rainier, with its 25 glaciers covering 90 square km (35 square mile), has more glaciers than any other peak in the continental US.

Mt. Rainier is located south of Seattle, Washington. Google has a function that enables you to see more information about the mountain such as the elevation and the elevation profile, and to fly on a tour. Open the Layers pane, expand Borders and Labels, expand Labels and then check Geographic Features (Figure 3).

Double‑click Mount Rainier Tour.

Double‑click and select A and B.

Question 11: The ridgeline is what type of glacial feature?

A. Cirque

B. Tarn

C. Horn

D. Arete

Double‑clickForbidden Peak Tourto get a closer look.

Question 12:What glacial feature (there are nearly 20 of them) is found on both sides of the ridgeline between A and B?

A. Cirque

B. Tarn

C. Horn

D. Arete

Question 13: Look at the lake below this ridgeline. This lake is what type of glacial feature?

A. Cirque

B. Tarn

C. Horn

D. Arete

Double‑click and select .

Question 14:What type of glacial feature is this lake?

A. Cirque

B. Tarn

C. Horn

D. Arete

Double-click select the Dfolder.

When 3 or more cirques back into each other they create a particular landform feature.However, this feature is somewhat difficult to see in the 2D perspective.

Double‑click. Double‑click and selectMountain Tour.

Question 15: What is the name of this glacial feature, to which the mountain is named (Hint: You can determine the name of the major summit by enabling Geographic Features)?

A. Cirque

B. Tarn

C. Horn

D. Arete

Close the simulation control panel:

Double-click and selectValley. Click animation in the window.

This valley was originally created by a river system and substantially modified by a glacier that has since retreated.

Question 16:What type of valley is found at D?

A. River valley

B. Glacial valley

C. Hanging valley

D. V – shaped valley

Collapse and uncheck Erosional Features

Transportation and Depositional Features

Double-click Transportation and Depositional Features.

This is the glacier d’Otemma in Switzerland. Within this alpine glacier, several depositional features are evident. Most notable are the various moraines found along (lateral), among or between (medial) and at the end (terminal) of the glacier. Morainesconsist of unsorted till (diamicton or sediment) that is deposited with glaciers; the location of the moraine determines the type. Three of the most well-known moraines are:
Double‑click and select letters F, G, and H individually to identify the following features:

Question 17:Feature :

A. Medial moraine

B. Terminal moraine

C. Lateral moraine

D. Recessional moraine

Question 18:Feature :

A. Medial moraine

B. Terminal moraine

C. Lateral moraine

D. Recessional moraine

Question 19:Feature

A. Medial moraine

B. Terminal moraine

C. Lateral moraine

D. Recessional moraine

Collapse and uncheck ALPINE GLACIATION.

Continental Glaciation

During glacial periods in the past, large portions of North America were cover by continental glaciers. Today, these glaciers are found predominantly in Greenland and the Antarctica. But remnants of continental glacier activity can be found across much of Canada,the northern continental US, northern Europe and Russia.

Expand and clickCONTINENTAL GLACIATION. Click continental glaciation video in the window. This animation depicts marginal landforms of continental glaciers.

As you can see, it is the depositional features of continental glaciations that remain on the landscape.These features include those that formed under or as a result of glacial lobes while other features are a result of glacial meltwater.

ExpandDepositional Features.

Drumlins are created by continental glaciers that reshape previous deposited glacier material as they move over it (Figure 4).They tend to be elongated and orient in the direction of ice movement. The blunt end of a drumlin faces the direction from which the glacier was moving when it created the drumlin.

Figure 4.Topographic representation of a drumlin and its direction of glacial ice flow.

Double-click Drumlin.

This is a landscape with several drumlins. From the air it is difficult to see them; however, it becomes more obvious when contour lines are added to show elevation changes.

Set the elevation exaggeration to 3.

Select Drumlin Contour.

Look for a series of contour lines forming an elongated shape similar to Figure 4. This feature is a drumlin.

Double-click and select Drumlin Oblique View to see an oblique view of the feature.

Question 20: According to the shapes of the drumlins, what (compass) direction do you think the ice was moving when it formed the drumlins?
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