Chapter 7: Volcanism and Extrusive Rocks How Does Volcanic Activity Affect Humans? What Determines the Degree of Violence Associated with Volcanic Activity? What Kinds of Rocks Do Volcanoes Produce? What Are the Characteristics of Different Types of Volcanoes? What Are Lava Flows? Can Volcanoes Erupt Underwater?

Sequence of Events at Mount St. Helens, 05/18/80 Box 7.1 – Figure 1

The Development of Crater Lake Figure 7.4

The Cascade Volcanoes Figure 7.5

Volcano Fatalities Figure 7.6

Summary of Textures in Volcanic Rocks Table 7.1

Cutaway View of a Shield Volcano Figure 7.16a

Cutaway View of a Composite Volcano Figure 7.21a

Recently Active Major Volcanoes Figure 7.22

Volcanic Dome Forming in the Crater of a Composite Cone Figure 7.26

One-Billion-Year-Old Metamophosed Pillow Basalts of the Canadian Shield Photo by N. Eyles Figure 7.30b

Answers to Selected Testing Your Knowledge Questions 11. 12. 13. 14. 15. 16. 17. 18. 19. D C E A 20. 21. 22. 23. B D A

Additional Resources Student Resources Instructor Resources Student Online Learning Centre The robust Student Edition of the Online Learning Centre at www.mcgrawhill.ca/college/plummer features quizzes for study and review, interactive exercises and animation, as well as additional boxed readings, searchable glossary, “Virtual Vista” environments, suggestions for further reading, and much more! Laboratory Manual The Lab Manual to accompany Physical Geology and the Environment has been created as a resource for laboratory sessions in physical geology, mirroring the "Inquiry-Based Approach" of the text. Structured on exercises and corresponding background concepts, the lab manual contains student-friendly worksheets, and has been perforated for easy lab use. Instructor Resources Instructor Online Learning Centre The OLC at www.mcgrawhill.ca/college/plummer includes a password-protected Web site for Instructors. The site offers downloadable supplements and access to PageOut, the McGraw-Hill Ryerson Web site development centre. Instructor’s Manual – The IM contains a chapter overview, list of changes per chapter, chapter learning objectives, further information on boxed features, short and long discussion/essay questions, and details on additional readings and resources outside the textbook. Test Bank – Contains a bank of 40-60 multiple-choice and true/false questions per chapter. Microsoft PowerPoint Presentation – This presentation system offers visual presentations that may be edited and manipulated to fit a particular course format. They also contain selected solutions to the problem material. Transparencies A set of more than 200 transparencies tied to the text content are available for instructors.