Faults Flashcards

1
Q

How and what is a dip slip fault?

A

Form under compressional or tension
Rocks are displace parallel to dip
Rocks are either stretched or smashed

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2
Q

What happens in a normal fault?

A

Tensile stress

Hanging wall is downthrown

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3
Q

What happens in a reverse fault?

A

Compressive and hanging wall is upthrown

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4
Q

What is a thrust fault?
a step fault?
a Horst and graben fault?

A

Thrust- low angle reverse
Step-series of normal faults dipping the same way(like steps)
Horst and graben- 2 normal faults dipping towards each other

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5
Q

What are features of fault planes?

A

Fault breccia-where competent rocks shatter along a fault plane
Slicked slides- where rocks are polished and scratched by movement forming linear fooled and ridges

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6
Q

What are strike slip faults?

A

Rocks displaces parallel to strike fault plane

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7
Q

What is a fault?

A

When rocks are put under differential stress and fracture in a brittle manner

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