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19 Cards in this Set
- Front
- Back
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Alfred wegener |
Proposed the theory of Pangaea |
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Continental drift |
Suggested that the continents are in constant motion on the surface of earth |
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Pangaea |
When the continents were all together as one super continent |
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Mesosaurus |
A reptile/fossil found on the coasts of Africa and South America |
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Glossopteris |
Fern like plant that's found in the tropics/ fossil found in a cold climate area |
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Seafloor spreading |
Developed by Henry Hess •formation of a new oceanic crust at the mid-ocean ridges |
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Glomar challenger |
Ship that gets core samples deep into the earths surface and in ocean floors |
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Magnetometer |
Measures the force of magnetism |
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Plate tectonics |
Structure of earths crust/Earth divided into plates that move around earth |
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Plates |
Earth is divided into plate like sections that move around/ earth broken into pieces called plates |
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Lithosphere |
All the crust and the uppermost mantle |
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Asthenosphere |
Hot section of the mantle just below the lithosphere/ plastic like |
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Divergent boundary |
Two plate going into opposite directions |
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Convergent boundary |
Two plates going towards each other |
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Subduction zone |
When a crust or possibly a plate getting subducted or going under because it's denser |
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Transform boundary |
Two boundaries rubbing/ going in opposite directions sometimes creating a fault |
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Convection current |
The transfer of air- the mantle rises upwards to the cold earth crust and as it becomes denser it sinks and new mantle material rises repeating |
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Tension force |
Another term for divergent boundary |
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Compression force |
Another name for convergent boundary |
