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18 Cards in this Set
- Front
- Back
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waves that are primary, fast, compressional, and longitudinal
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P WAVE
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secondary waves that are tranverse, sheer, and slower than P waves
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S WAVES
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what is the outermost layer of the earth called?
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CRUST
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The inner core of the earth is very ____
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DENSE
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Why can we not hear P and S waves directly?
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The frequency is too low
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P waves travel through ____ and _____
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FLUID AND SOLID
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S waves can/cannot travel through fluid
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CANNOT
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Igneous rocks are characterized by large or small ____
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CRYSTALS
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large crystaled rocks are FAST/SLOW cooling and smaller crystaled rocks are FAST/SLOW cooling
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SLOW; FAST
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Desintegration of other rocks and deposited as sediment
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SEDIMENTARY
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Sandstone and limestone are what kind of rock?
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SEDIMENTARY
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The glacial period included what time in history?
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QUATERNARY
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What time period did the dinosaur extinction occur?
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CRETACEOUS-TERTIARY
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What was the time period of the dinosaurs?
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JURASSIC
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parallel stripes of different
magnetic orientation |
PALEOMAGNETISM
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thickness and age of
sediments increase with distance from midocean ridge |
CORE SAMPLING
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Divergent plate boundaries MOVE APART/COLLIDE with each other and crust is ADDED/REMOVED
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apart; added
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Convergent plate boundaries MOVE APART/COLLIDE and crust is ADDED/REMOVED
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collide; removed
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