The Earth's Crustal Movements


Review the following concepts

Recall our discussion on the two types of crusts.
*The continental crust is 32 km thick and the oceanic crust is 8 km thick.

Recall the lab with the Styrofoam and the silly putty.
What were are different types of stresses and faults that result from these stresses? Be able to illustrate these forces.
Use your notes to answer this one!!!

The two major landforms that we discussed were Fault-block mountains and Rift Valleys.
Fault-block Mountains form by blocks of rock uplifted by normal faults.
Rift Valleys form when the block of land between two normal faults slides downward.

Recall the two types of folds and the factors that would cause a rock to fold rather than fault. (Mr. Purnell did the COOL glass bending demo!) Consult your notes. Be sure to know how to draw the two types of folds.

In what ways did Plateaus and Domes differ IN FORMATION? Consult your notes.

Click here to see Mr. Purnell's pics of landforms!!!
Know what Isostasy is.
Isostasy is a balance that exists between the downward force of the crust and the upward force of the mantle.

Know how the Grand Canyon was formed! May be an extra credit!

What happens when domes erode?
They form dome mountains!

USE YOUR NOTES TO ANSWER THESE QUESTIONS!!!



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