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12 Cards in this Set
- Front
- Back
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Lithosphere |
the rigid outer part of the earth, consisting of the crust and upper mantle. |
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Tectonic Plates |
the two sub-layers of the earth's crust (lithosphere) that move, float, and sometimes fracture and whose interaction causes continental drift, earthquakes, volcanoes, mountains, and oceanic trenches. |
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Divergent Boundaries |
is a linear feature that exists between two tectonic plates that are moving away from each other. |
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Convergent Boundaries |
is an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide. |
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Transform Boundary |
since these faults neither create nor destroy lithosphere, is a type of fault whose relative motion is predominantly horizontal in either sinistral or dextral direction. |
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Convection Current |
a current in a fluid that results from convection. |
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Strata |
one of a number of portions or divisions likened to layers or levels |
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Pangea |
was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 300 million years ago. |
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Theory of Continental Drift |
theory stating that the Earth's continents have been joined together and have moved away from each other at different times in the Earth's history. |
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Faults |
(of a rock formation) be broken by a fault or faults. |
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Dip-Slip Fault |
It is caused by a combination of shearing and tension or compressional forces. Nearly all faults will have some component of both dip-slip(normal or reverse) and strike-slip, so defining a fault as oblique requires both dip and strike components to be measurable and significant. |
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Strike-Slip Fault |
a fault in which rock strata are displaced mainly in a horizontal direction, parallel to the line of the fault. |
