NOVA TV special
Click HERE to watch the whole episode on Making North America: Origins. This nicely sums up and touches on all three rock types and what role they had in making up our continent AND their effect on our lives today!
Here's some key questions to answer while watching. Answer these and turn them in to get points for this assignment if you missed class.
Here's some key questions to answer while watching. Answer these and turn them in to get points for this assignment if you missed class.
- What is the relationship between the depth of a layer and its age? What kinds of evidence support this?
- Why does granite "float" above basalt?
- Why is the Manhattan schist an important discovery?
- What evidence was presented to support the claim that there was once a mountain chain called the Ancestral Rockies in the American West?