Sea Floor Spreading
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Geomagnetic Reversal | A change in Earth's magnetic field such that
the positions of north and magnetic south
are interchanged.
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| Normal Polarity | Magnetic field the same as that which
presently exists.
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| Reverse Polarity | Magnetic field opposite to that which
presently exists.
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| Hot Spot Volcanoes | The interpolate volcanism that produced
the Hawaiian Islands is one example.
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| Ridge Push | Mechanism that may contribute to plate
motion. It involves the oceanic
lithosphere sliding down the oceanic
ridge under the pull of gravity.
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| Slab Pull | Mechanism that contributes to plate
motion in which cool, dense oceanic
crust sinks into the mantle and "pulls"
the trailing lithosphere along.
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| Slab Suction | The process of thrusting oceanic
lithosphere plate descends beneath another.
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| Mantle Drag | The force generated at the base of the
lithosphere by the movement if the
underlying lithosphere.
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| Plate Resistance | The plates resist.
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Created by:
probinson28
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