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Definition
| charged particles from solar wind follow the magnetic field lines, and can be seen at the poles |
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Definition
| combined spin of the earth and convection in the outer core generate earths magnetic field |
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| Our solar system consists of |
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Definition
-4 inner terrestrial planets
-4 outer jovian planets
-satellite planets
-astroid belt
-kuiper belt |
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Definition
| Zone of shallow to deep focused earthquakes along the descending slab |
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Definition
| one of several forces acting on plates |
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| what drives plate motions? |
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Definition
| older models relied on whole mantle convection, like a conveyor belt |
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Definition
| Is a fixed source of magma that rises from a deep in the mantle. |
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Term
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Definition
Dominant rock=granite
thickness=20-70 Km
density=2.7 g/cm3 |
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Term
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Definition
dominant rock=basalt
thickness=3-5 km
density=3 g/cm3 |
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Term
| Paleomagnetic signature frozen in a rock has 3 components |
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Definition
1. polarity
2. declination
3. inclination |
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Definition
| linear features in ocean crust produced by offsets in axis of oceanic ridge |
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Definition
| occurs when 2 continents converge |
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Definition
| marks the place where the collision happened |
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Definition
| occurs when a ocean plate converges with a continental plate or another ocean plate |
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Term
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Definition
plate boundary occuring along edge of a continent
3 types: convergent, divergent, transform |
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