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13 Cards in this Set
- Front
- Back
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The name of all the continents in 1 big continent.
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Pangaea
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Idea that Earth's continents were all one big continent.
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continential drift
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He propsed continential drift
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Alfred Wegener
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Molten material from Earth's mantle is forced upward to the surface at mid-ocean ridges & cools to form new seafloor.
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Sea-Floor Spreading
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Suggests Earth's crust and upper mantle are broken into sections called plates.
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Plate Tectonics
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Crust and Uppermost mantle
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Lithosphere
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The putty-like layer.
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Asthenosphere
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Boundary between 2 plates that are moving away from each other and spreading apart.
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Divergent Boundary
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Crustal material being destroyed where two plates meet head on.
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Convergent Boundary
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Formed when 2 plates slide past 1 another in opposite directions at different rates.
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Transform Fault Boundary
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Used to measure Earth Quakes
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Rictor Scale
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How many locations is needed to get the location of an earthquake?
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3
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Magma forced up through cracks in the solid lithosphere and spills out as lava.
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Hot Spots
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