Structure of a Continent Figure 13-3. How are continental plates formed? Figure 13-4.
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Structure of a Continent Figure 13-3
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Transcript of Structure of a Continent Figure 13-3. How are continental plates formed? Figure 13-4.
Why was St. Louis under water during the Cambrian/Ordovician (when the fossils we saw on the field trip formed)?
What can cause the ocean level to rise, relative to the land?
The plates had been moving fast – the ocean seafloor was higher on average, and ocean water spilled up onto continents.
Granite plutons begin deep within an orogenic belt.
How do they get to the surface?
Erosion and Isostatic Rebound!