Term
| what forms as plates converge? |
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Definition
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Term
| oceans are opening at a rate of about 1 to 3 inches per? |
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Definition
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Term
| the number of lithsphere plates is ? |
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Definition
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Term
| divergent plate margins form? |
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Definition
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over the rising portion of asthenospheric convection cells.
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Term
| zones of subduction are associated with? |
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Definition
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Term
| the magnetic zonation of the oceanic crust is do to? |
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Definition
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magnetic reversals that occurred as the balsaltic rock was being formed.
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Term
| the magnetic zonation of the oceanic crust is do to? |
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Definition
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magnetic reversals that occurred as the balsaltic rock was being formed.
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Term
| deep-sea trenches are located?
? |
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Definition
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Term
| the convection currents that are thought to drive the plates are located within the earths? |
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Definition
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Term
| the unique feature of the athenosphere is that it is ? |
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Definition
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Term
| the most dominant surface features associated with convergent plate margins are? |
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Definition
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Term
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Definition
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the temperature at which spontaneous magnetic ordering occurs,
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Term
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Definition
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the force generated by the sinking portion of an asthenospheric convection cell
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Term
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Definition
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the force generated st the base of the lithosphere by the movement of the underlying asthenosphere.
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Term
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Definition
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the combination of the crust and the outer portion of the mantle
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Term
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Definition
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the lateral movement of the crust away from the oceanic ridge
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Term
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Definition
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the topography of the ocean bottom
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Term
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Definition
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the angle between the direction of the magnetic fields and thr horizontal
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Term
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Definition
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the breaking of the lithosphere under tensional forces
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