Name: _____________________________________ Date: _________________ Period: ______
Chapter 5.1: Deformation of the Crust
1. Deformation of the Crust
a. Deformation
i. The ________________, ________________, and
_________________ of the Earth’s crust.
b. While plate ____________________ is the major cause of the
______________________ of the _________, it is not the only cause.
2. Isostasy
a. The balancing of the _______________ pressing up and ___________
on the Earth’s _______________.
b. Since the crust “____________” on top of the ______________, when
parts of the crust become __________________ and heavier they will
_______________ deeper into the mantle, and when it becomes
_____________________ and lighter it will ____________ higher on
the mantle.
i. This causes two _____________ which causes the up and down
__________________ of the crust.
1. The crust presses ______________ on the mantle.
2. The mantle presses ________ on the crust.
c. When these two forces are ________________ the crust doesn’t move
up and _______________.
d. ________________ adjustments is the up and down movement of the
_________________ to reach _______________________.
i. During Isostatic ________________, pressure created by this
_______________ of the crust causes the land in those areas to
_____________________.
e. __________________ adjustment is constantly occurring all over the
_______________.
i. In areas where _______________________ ranges are being
___________________.
ii. In areas where minerals are ___________________ (deltas).
iii. In areas of retreating _________________________.
3. Geologic Stress
a. ___________ is the amount of ______________ per unit area that is
placed on a given _______________________.
Name: _____________________________________ Date: _________________ Period: ______
b. Stress is caused by isostatic ________________________ and plate
_____________________.
c. Stress can also cause ______________________ on
_______________________________ rocks.
i. _________________ is a change in the ___________________
or volume of rocks that results from the stress of being
_____________________, __________________, or
__________________ apart.
d. There are three main types of stress:
i. __________________________ occurs when crustal rocks are
_______________________ together.
ii. __________________________ occurs when crustal rocks are
_______________________ apart.
iii. __________________________ occurs when crustal rocks
______________ past each other.