vocab terms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Continental Drift | the gradual movement of the continents across the earth's surface.
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| Pangaea | landmass of all the continents that broke apart 200 million years ago.
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| Magnetometer | instrument that is used to measure magnetic forces.
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| Paleomagnetism | branch of geophysics concerned with the magnetism in rocks that was induced by the earths magnetic fields.
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| Magnetic Reversal | a change in the earth's magnetic fields which is resulting in the magnetic north being aligned with the geographic south. and the magnetic south being aligned with the geographic south.
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| isochron | line on a map that connects points relating to the same time zone.
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| Seafloor Spreading | the formation of new areas on the ocean floor. which is through magma coming up from mid ocean ridges.
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| Theory Of Plate Tectonics | earth divided into small numbers of plates which float on and travel independently over the mantle and much of earth.
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| Divergent Boundry | exist between two tectonic plates that are moving away from each other.
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| Rift Valley | elongated depression with steep walls formed by downward displacement of earth's surface between fault systems.
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| Convergent Boundry | boundary where to plates are moving towards each other.
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| Subduction | downward and sideways movement of a plate of the earth's crust.
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| Transform Boundry | when two plates slide against each other in a sideways motion.
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| Ridge Push | proposed mechanism for plate motion in plate tectonics.
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| Slap pull | the portion of motion of a tectonic plate that can be accounted for by its subduction.
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Created by:
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