Exam 18: Glaciers and Glaciation

________ are stratified sands and gravels carried away from the glacial terminus by meltwater.

Deposits of stratified sands and gravels transported from the glacial margin by meltwater are called a(n)________ when adjacent to an ice sheet and a(n)________ when adjacent to an alpine glacier.

Lateral and medial moraines are found in connection with ________ glaciation.

How would plate tectonics explain the glaciation at the end of the Paleozoic Era, when no evidence of glacial ice can be found in high-latitude areas of North America and Eurasia?

How does ground moraine form? Relate the formation of ground moraine to changes in climate.

A glacier takes hundreds of thousands of years to form, but only a few thousand years to disappear.

________ is an elevation point above which snow remains throughout the year.

Which glacial erosion feature is likely to contain a waterfall today?

Which of the following is not part of the Milankovitch Cycle?

Evaluate the following statement: "Continental ice sheets generally subdue their landscapes, whereas alpine glaciers accentuate them."

Which of the following locations does not currently have glaciers?

Which direction was the ice flowing (Hint: It is bedrock.)

What shape do glacial troughs generally display?

________ is an erosional method where meltwater penetrates fractures in subglacial bedrock and freezes.

Which moraine marks the furthest extent of glacial ice?

How does isostatic rebound affect a glacial landscape after the glacier is removed?

What was the most recent episode of glaciation in North America?

Explain how the presence of glaciers on the planet affects the albedo of the land surface.How will the albedo change as glaciers melt? What will this mean for the climate?

Which of the following best explains the formation of a medial moraine on a glacier?

Which method of glacial erosion is responsible for the marks in this image?