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15 Cards in this Set
- Front
- Back
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what acts on a rock to change its shape or volume
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force
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what is the weight of something?
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mass
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name 3 types of stress?
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compression-squeezes
shearing-pushes oposite direction tension-pulls |
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when enough stress builds up in a rock, the rock breaks, creating what?
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fault
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what is a fault?
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breaks in the earths crust or a rock
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Name three types of faults?
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A: strike-slip-blocks of rocks that slip past each other with very little up or down movement.
type of stress: shearing movement of the blocks: left and right B: normal type of stress : tension movement of hanging wall: up and down C: reverse type of stress: compression movement of hanging wall is diagnal up and down C: reverse stress:compression movement: up and down diaganal |
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What are the steps in creating a normal fault?
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1: rock has a crack in it
2: rock surfaces slip |
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list the steps in creating a reverse fault?
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1: fault is on angle
2:land pushes it together 3: hanging wall slides upward |
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explain how fault bock mountains are formed?
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movement of a large crustal blocks then forces the earths crust pull apart
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explain how folded mountains are formed?
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collision of continental plate techtonics
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What are folds?
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a bend in a layer of rock
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what is anticline?
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fold of rock layers that slope downward on both sides of a common crest
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what is anticline?
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fold of rock layers that slope downward on both sides of a common crest
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what is syncline?
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a fold of rock layers that slope upward on both sides of a common law point
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what is a plateau and how is it formed?
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an area of level high ground. It is formed by lava build up
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