Physical Geology 101
Paleomagnetism Study Guide
After the "Paleomagnetism" lecture and readings you should be able to answer and discuss the following questions.
What is paleomagnetism?
Where is the Earth's magnetic field generated?
How is the Earth's magnetic field generated?
What happens to materials containing iron when they are placed into a magnetic field?
What happens to rocks when they form in the presence of the Earth's magnetic field?
What is meant by a normal magnetic field and a reverse magnetic field?
How often, on average, does the Earth's magnetic field reverse itself?
When was the last magnetic reversal of the Earth's magnetic field?
What does this tell us?
What causes magnetic reversals?
How does paleomagnetism and magnetic reversals support seafloor spreading and continental drift?
Describe the relationship between the age of the ocean floor and the mid-ocean ridges?