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The _____ of the world continents suggest that there once was a super-continent that broke and drifted apart?
Fit
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To see if two continents were together but drifted apart the first thing to check is their _____?
Coastlines
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When continents were fitted the following features matched: _____, _____, and _____?
Fossil Sites, Rocks, Climate Zones
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Continents are actually large blocks of _____ that _____ on the Asthenosphere?
Rocks, Float
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The seafloor spread from the _____?
MOR (rift valley)
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The oceanic lithosphere forms at the _____ from the magma that rises from the _____?
MOR, Asthenosphere
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Oceanic lithosphere and the continental lithosphere both are moved by the moving _____?
Asthenosphere
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_____ _____, a feature on the MOR clearly proves that the seafloor spreads from the MOR?
Rift Valley
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As the distance from the MOR increases the age of the seafloor rocks _____?
increases
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The discovery of seamounts covered with coral reefs away from the _____ shows that the seafoor moves?
equator
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The Earth's magnetic field has _____ many times during the past?
reversed
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Magnetic Anomaly = _____ magnetic field - _____ magnetic field?
measured, theoretical
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Magnetic anomalies are formed at the MOR due to magnetic _____?
reversals
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Magnetic anomalies are _____ about the MOR is proving seafloor is spreading from the MOR?
symmetric
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Rocks that cause negative magnetic anomalies formed when the Earth's magnetic north pole was near the _____ pole?
south
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As the distance from MOR increases, the sediment thickness _____.
increases
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Marine magnetic anomalies can be used to determine the _____ and the _____ of plate notion?
speed, direction
-
Continents move because they _____ on the moving _____?
float, asthenosphere
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About 180 million years ago India was near ___ and South America _____.
Antarctica, Africa
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The _____ ocean opened as a result of the drifting of Africa and South America apart?
Atlantic
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