Chapter 33 - Restless Planet and Sea floor features

Key Terms:

Objectives of chapter:

• Identify evidence supporting continental drift
• Define paleomagnetism and its relationship to continental drift
• Describe the theory of Sea floor spreading
• Identify features of the ocean floor that provide evidence of Plate tectonics
• Describe the theory of plate tectonics
• differentiate the three types of plate boundaries
• relate the formation of different rock types to Plate tectonics
• Differentiate between volcanoes due to hot spots and those due to subduction.

Outline:

33.1 The theory of Continental Drift

Alfred Wegener

Pangaea

the importance of oceanography in this discovery

climate history as a result of this theory and work

paleomagnetism

HH Hess and Sea floor spreading

34.2 The theory of Plate Tectonics

34.3 Three types of Plate Boundaries

Divergent

Convergent

Transform

34.4 The Theory that explains much

The underlying idea that helps to explain all the geologic processes that are occuring.

Chapter links

Tectonics and Sea floor features

• http://wrgis.wr.usgs.gov/docs/usgsnps/pltec/pltec1.html
• http://www.ucmp.berkeley.edu/geology/tectonics.html
• http://greeenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0132
• http://kids.earth.nasa.gov/archive/pangaea/
• Exploration of the deep sea floor by NOAA

class text - conceptual physical science

PCDS useful links - sorted by topic

Related reading

McPhee, John. Assembling California New York: Farrar, Strauss and Giroux, 1993

Jason project story number 1 - Where are the Channel Islands and why are they important?

Related labs, activities and videos

NIH image Sea floor in a shoebox- lab

plate tectonics jigsaw exercise - Jason page 32

mystery of pygmy mammoth- Jason page 27

Practice Book Exercises

Sea floor spreading page 116

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