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20 Cards in this Set
- Front
- Back
recent trend in world wide natural disaster occurrence
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increasing steadily |
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this constitutes a prediction rather than a forecast for a natural event
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a magnitude 4.5 earthquake will occur in Washington on may 9 |
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the energy for plate tectonics comes from where
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heat from the earths core |
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what would you not expect at sites where one plate is subducting beneath another?
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creation of a new sea floor |
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what is the thinnest layer of the earth |
the crust |
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what hazard would you expect to see at a transform fault boundary |
earthquakes |
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CDTH; convergent, divergent, transform fault, hot spots
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where earthquakes are generally found |
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when magma cools, atoms arrange forming minerals, if cooling rapid you get lava and minerals can only be seen under microscope |
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heat and intense pressure affect rocks deep beneath earths surface, where they deform by flowing and bending under stress |
metamorphism |
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when ingenious or metamorphic rocks are subject to intense heat they melt and produce what |
magma |
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weathering and erosion of rocks, transport and deposition of sediment, ingenious processes (lava released during volcanic eruptions) |
surface processes |
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burial of sediment in ocean basins to form sedimentary rocks, or the low-grade metamorphism of rocks under the influence of low temp and pressure
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processes occurring in shallow subsurface (right underneath the surface) |
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high grade metamorphism of rocks, rocks melting, crystallization of intrusive ingenious rocks (granite) and high temp and pressure |
processes occurring in the deep subsurface |
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when magma crystalizes internally to form intrusive ingenious features... |
crystallization occurs deep below the surface |
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which of the following rock types is most abundant on earths land surface? |
sedimentary rocks |
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surface process that creates large quantities of sediment and dissolved elements from preexisting rocks
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weathering |
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lava cooling & crystalizing to form ingenious rocks, weathering, transport, deposition |
earths surface |
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sediment undergoing lithification |
earths shallow surface |
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rock melting, high temp & pressure, metamorphism, magma cooling & crystalizing to form intrusive rocks
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earths deep surface |
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south & north American, pacific, Australian indian, antartic, eruasian
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