Chapter 4 - Glacial and Arid Landscapes
Learning Objectives:
After completing this chapter you should be able to:- Distinguish between valley glaciers and continental ice sheets.
- Describe the method of glacial formation and movement.
- Describe the processes by which glaciers erode and deposit material.
- List and describe the erosional and depositional features produced by glaciers.
- Explain the effects of the Pleistocene Ice Age on North America.
- Describe the causes of deserts.
- List and describe the features produced by water in deserts.
- Explain how wind erodes and deposits sediment.
Reading Assignment
Read in Your Text:
Read Chapter 4 from page 89 through page 112. As you read each section of this chapter, click on the highlighted text to jump to a site which further clarifies, elaborates, or illustrates the concepts from that section.- Types of Glaciers
- How Glaciers Move
- Accumulation and Wastage
- Glacial Erosion
- How Glaciers Erode
- Features of Valley Glaciers
- Glacial Deposits
- Glaciers of the Past
- Some Indirect Effects of Ice Age Glaciers
- Deserts
- Distribution and Causes of Dry Lands
- The Role of Water in Arid Climates
- Basin and Range: The Evolution of a Desert Landscape
- Wind Erosion
- Wind Deposits
- Loess
- Sand Dunes
Vocabulary List
Test your knowledge of the vocabulary below by passing your cursor over the terms to reveal their definitions. Practice until you are confident in your understanding of this vocabulary.alluvial fan
alpine glacier
arête
blowout
cirque
crevasse
cross beds
deflation
desert
desert pavement
drift
drumlin
dune
end moraine
ephemeral stream
esker
fiord
glacial erratic
glacial striations
glacial trough
glacier
ground moraine
hanging valley
horn
ice sheet
interior drainage
kame
kettle
lateral moraine
loess
medial moraine
outwash plain
playa lake
Pleistocene epoch
plucking
pluvial lake
rock flour
slip face
steppe
stratified drift
till
valley glacier
valley train
zone of accumulation
zone of wastage
Chapter Review
Complete the "Questions For Review" and "Testing What You Have Learned" sections found on pages 113-114 of Chapter 4. Do not submit these to your instructor for grading. You will use these as review materials to assist you as you prepare to complete your course examinations.
Apply Your Knowledge
Answer the following question after searching the internet for information on which to base your response. Provide the web address(es) for your source(s) of information. Do not simply cut and paste information from a source. This constitutes plagiarism. Instead, write your response IN YOUR OWN WORDS. Feel free to collaborate with other students or discuss this question with the instructor by visiting the WebBoard (Conference link below) and locating this question in the list of topics provided.Are most of the world's glaciers advancing, retreating, or remaining stable? What does this suggest about global climatic trends?
Submit your answer for grading by e-mail.
Conference
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Updated 20 Mar 99