Term
| List the layers of earth from the outer to inner most layer. |
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Definition
| Curst, Mantle, Outer Core, Inner Core |
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Term
| Mohorovicic Discontinuity |
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Definition
| (Moho) The interface that separates the mantle from the crust |
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Definition
| the outermost thick layer that is relatively strong and rigid; consists of the upper mantle and the crust |
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Term
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Definition
| The weak plastic layer contained entirely within the mantle |
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Term
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Definition
| Starts below the asthenosphere and continues to the boundary with the outer core |
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Term
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Definition
| Underlies the world's ocean |
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Term
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Definition
| Underlies the continental regions |
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Term
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Definition
| Basaltic in composition and is about 7km thick |
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Term
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Definition
| composed of granodioritic material and varies between 35 - 45 km in thickness |
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Term
| What are some ways tectonic plates interact? |
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Definition
| Converging, diverging, transforming |
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Term
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Definition
| along convergent margins, two plates move toward each other along their juncture one plate descends beneath the other |
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Term
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Definition
| when the volcanic arc is embedded in the oceanic lithosphere |
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Term
| Continental-margin island arc |
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Definition
| if the volcanic arc is embedded in continental lithosphere |
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Term
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Definition
| when two plates move directly away from each other |
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Term
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Definition
| the locations of divergent margins and sites where new oceanic crust and lithosphere form |
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Term
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Definition
| Site where two plates are sliding past each other; ideally, these margins are neither convergent nor divergent |
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Term
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Definition
| the process that the dense leading edge of the subducting plate tends to pull it downward much like a weight on a fishing line |
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Term
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Definition
| occurs at mid-ocean ridges where hot buoyant asthenosphere rises beneath the ridge, elevating it relative to adjacent areas |
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Term
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Definition
| as the subducting plate moves laterally and downward into the asthenosphere it displaces material and induces the asthenospheric convective flow patterns |
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Term
| List the major plates of planet Earth. |
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Definition
| N. American, S. American, Pacific, African, Euroasian, Indian-Australian, and Antarctic |
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