Forces in Earths Crust Flashcards

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1
Q

Normal Fault

A

Hanging wall moving downwards

Foot wall moving upwards

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2
Q

What kind of stress pulls apart Normal Faults

A

Tension

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3
Q

What do 2 parallel Normal Faults form

A

Fault block mountains

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4
Q

hot are Fault block mountains made?

A

2 Normal Faults leave an elevated area between them

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5
Q

How many footwalls do Fault Block Mountains have?

A

1

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6
Q

Where are Fault Block Mountains found?

A

The Great Basin

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7
Q

Reverse Fault

A

Hanging wall moves upwards

Foot wall moves downwards

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8
Q

What kind of stress make Fault block Mountains?

A

Tension

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9
Q

What kind of stress makes reverse Faults

A

Compression (Convergence)

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10
Q

Thrust Fault

A

A special type of reverse fault where the fault is less than 45 degrees, but otherwise same every other way

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11
Q

Rift Valley

A

2 normal faults leaving an open area between them as they are pushed outward

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12
Q

How may foot walls and hanging walls are there in a rift valley?

A

2 foot walls

1 hanging walll

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13
Q

Strike-slip vault

A

Caused by shearing

Very little up and down movement

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