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15 Cards in this Set
- Front
- Back
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Geologists
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Scientists who study the faces that make and shape the planet Earth
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The continental crust consists of......
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Mainly rocks such as granite
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Asthenosphere
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•A layer of soft but solid, mobile rock comprising the lower part of the upper mantle...
* is like road tar softened by the heat of the sun... soft and can bend like plastic |
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Radiation
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The transfer of energy through space
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Convection
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The heat transfer by the movement of a heated fluid.
*Movement of molecules within fluids |
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Alfred Wegners
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Known for his theory continental drift.... which is the idea that continents slowly moved over the Earth's surface .
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What evidence proves the hypothesis of Continental Drift
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Fossils of tropical plants were found on an island in the Arctic Ocean.
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Sea Floor spreading
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when tectonic plates split and magma comes up through the seperation of the tectonic plates and build new crust...
*Adds new material to the ocean floor |
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Process of Sea Floor Spreading
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*Begins at the mid-ocean ridge
* Molten material erupts through the valley of the mid-ocean ridge * As oceanic crust moves away... it cools and becomes dense |
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Subduction
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The process by which ocean floor sinks beneath a deep-ocean trench and back into the mantle
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Lithosphere
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In the Earth, the lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth. The lithosphere is underlain by the asthenosphere, the weaker, hotter, and deeper part of the upper mantle. The lithosphere is broken into tectonic plates
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Subduction
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The process by which ocean floor sinks beneath a deep ocean trench and back into the mantle
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The lithosphere....
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... Is broken into seperate sections called plates
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Faults....
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Are breaks in the Earth's crust where rocks have slipped past each other.
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Transform Boundary
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A place where 2 plates slip past each other... moving in the opposite directions.
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