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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What type of rock is the continental plates composed of? |
Granet |
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What type of rock is Oceanic plates composed of? |
Basalt |
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Which is Denser continental or oceanic? |
Oceanic |
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What is a mid ocean ridge? |
Mountain ranges in middle of ocean ●divergent |
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What did Alfred wegener come up with 1: 2: |
1:content all drift 2:pangaea |
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What did Harry Hess come up with? 1: 2: |
1:sea floor spreading 2: plate technonics |
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What is the difference between continual drift and plate technonics? |
CD: idea plates moved PT: how plates move |
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Where are convection cells located? |
Mantle》asthophere |
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What is the name of the super content |
Pangaea |
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Why did people reject wegener ideas of contental drift? |
They wanted to know how they moved |
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Lithopheric plate? |
Pieces of lithophere that move around due to convection cells |
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Subduction? |
Going under another plate |
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How is an Island chain formed? |
A man the plume & it erupts from a volcano cools & forms new land |
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Divergent boundary? |
The line between two plates where they are moving apart |
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What landforms are created by divergent boundaries? |
●rift vally- 2 continual plates ●mid ocean ridge-2 oceanic plates |
There's 2 |
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What is a convergent plate boundary? |
2 plates colide |
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What landforms are created by convergent boundaries? |
●trench- 2 oceanic plates ●trench & volcano- oceanic plate & continual ● mountain range- 2 contental colide |
There's 3 |
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Transform boundary? |
It will appear in a zigzag |
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What landforms are created by transform boundry? |
Slickenslide and offsetting (earthquake) |
There's 2 |
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Is the earth getting larger because of sea floor spreading? |
No, subduction |
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Evidence for contental drift... |
●matching plants ●reptiles ●mammals ●matching coal beds ●matching rock types ●age ●mountains ●fits together like a puzzle |
There's 7 |
