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You get absolute dating from relative dating
-absolute dating from relative dating
-absolute dating from relative dating |
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| Time that is basic on fossil record, oldest rocks/fossils at the bottom are the oldest, time in certain periods/eras *precambrian, cambrian, mesozoic, paleozoic etc. |
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| used to determine the half life of things, also used to determined how old the world, planets, and sun is (pretty much the universe). |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| around 4 billion but approx. 3.96 years old |
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| how do we know the age of the earth? |
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| using radiometric dating from meteorites |
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| around 200million years old |
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| 10 to the 6th / 10 to the 0, |
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| determine age of the universe |
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| calculate the speed and direction the galaxies are moving away from each other. |
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| sudden slip on a fault plane |
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| intersection between fault plane and earths surface |
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| a cliff or steep slope formed by displacement of the ground surface |
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| – point where earthquake starts (lat, long, depth), locate using arrival times of earthquake seismic waves at an array of stations |
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| point directly about the hypocenter on the earth’s surface (lat, long) |
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| place of weakness around a fault |
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| o First P motion on a vertical seismometer |
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Up – away from the source
Down – toward the source |
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| – particle motion is retrograde elliptical in direction of propagation |
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| volcano at convergent boundary |
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| Andesite magma, lots of silica, lots of viscosity, which explains the grey color, explosive eruptions, steep-sided composite (strato) volcanoes (Cascade Mountains) |
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| volcano at divergent boundary |
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| o Basalt magma – contains less SiO2 (low viscosity) which explains the black color, quiet eruptions, shallow-sloped shield volcanoes |
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a seismic sea wave usually generated by dip-slip faulting on the ocean floor\very long wavelength (say 200km) and a very long period (say 15 min)
-Velocity = frequency x wavelength or wavelength/time |
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