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Study Guide 3

Science

QuestionAnswer
When tension acts on rocks, the rocks are... Being pulled
When shearing acts on rocks, the rocks are... Twisted, torn, and pushed in opposite directions
In a reverse fault the, hanging wall... Moves up
A fold is a... Bend in rock
An oval or circular uplifted area created by rising molten rock is called a... Dome
In a lateral fault, one block... The fault block moves horizontally
Deformation is... Breaking, Tilting, or Folding
Mantle rocks... Are hot flowing liquid
If you walked to the center of an anticline, you would be standing... At the top
Movement of a rock along a fault is...
A force that greatly deforms rocks is... Stress
Compression differs from tension because... Compression pushes and tension pulls
When joints form in rocks, they... Crack and form parallel to one another
The crust of the Earth... Is the rigid outermost layer that floats on the mantle
Isostasy in the Earth occurs because of... The upward push of the mantle and the downward push of the crust
If tons of ice that cover the Antarctic were to melt, the crust in that area would... Rise
Massive amounts of sediment deposited in the Gulf of Mexico have caused the crust... To Sink
Rocks have been carried many kilometers from their original location by... Thrust Faults
Older rocks are found on top of younger rocks in... Thrust Faults
Parallel rock fractures that occur along numerous flat surfaces are called _____. Joints
A fault that is formed when compression causes the hanging wall to move over the foot wall is called a(n) _____. Thrust Fault
Rocks that bend easily are said to be _____. Ductile
A low area formed when a block of land between two normal faults slides downward is called a(n) _____. Rift Valley
The balancing of upward and downward forces that act between the two outermost layers of the earth is called _____. Isostasy
The _____ is the block of rock above a fault. Hanging Wall
If a stress due to compression is acting on a fault, the hanging wall will move up relative to the foot wall in a _____ fault. Reverse
Layers of rock that bend can produce a downward fold known as a(n) _____. Syncline
The layer of the earth called the _____ is made of rock that flows slowly. Mantle
True or False The outermost layer of earth is called the mantle. False
True or False Mountains formed by blocks of rock uplifted by normal faults are called dome mountains. False
True or False An upward lift in rock is called a syncline. False
True or False Molten rock found beneath the earth's surface is called lava. False
True or False The squeezing together of rocks by stress is called shearing False
True or False An uplifted area created by magma from below is called a hill or mound. False
True or False If rocks become extremely hot during compression, they are more likely to fault then to fold. False
True or False The pushing and pulling of earth's crust is called deformation. False
True or False A bend in a rock layer is called a joint. False
True or False Earthquakes often occur in faults in the earth's crust. True
Describe an activity or demonstration that we did this chapter, and mention what I was trying to help you learn by doing the activity. An activity we did this chapter was the lab where we used pieces of wood to resemble the crust and water to represent the mantle. You were trying to help us learn about isostasy by doing this lab.
Compare and Contrast Faults and Folds. Fault breaks fold bends
Study the picture. Using evidence that you can gather from the sketch, explain any crust movement that has occurred at this site. Shearing and/or a lateral fault have occurred because the land has moved horizontally along the fault line.
Describe two conditions under which a rock would rather fold than fault. Two conditions under which rock would fold rather than fault are if the rock is ductile, or if it is under high pressure.
Describe the types of stress that would cause the movement of rocks shown in the picture make sure you include how stress is moving the rock. Compression could move the rocks below because compression pushes on rocks.
Created by: GabeB
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