Invited review Plate tectonics, flood basalts and the evolution of ...
Plate tectonics review #2
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Transcript of Plate tectonics review #2
![Page 1: Plate tectonics review #2](https://reader036.fdocuments.in/reader036/viewer/2022062704/55588fcdd8b42aad358b53c7/html5/thumbnails/1.jpg)
Review Plate Tectonics #3Divergent Boundaries
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The place where two plates move apart or diverge is called a divergent boundary.
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#1 Sea floor spreading
Can you explain this diagram!?
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What causes sea floor spreading?
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This is a model of sea floor spreading at a divergent boundary is called a
mid ocean ridge.
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Oceanic crust diverging from oceanic crust
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Did you know that the Earth’s longest mountain range is underwater and is called the mid-ocean ridge?
: www.ocean.udel.edu
The Mid-Ocean Ridge system, shown above snaking its way between the continents, is more than 56,000 kilometers (35,000 mi)
long. It circles the earth like the stitching on a baseball!
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Continental crust diverging from continental
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African rift valley
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Iceland’s rift valley
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Review Plate Tectonics #4Transform Boundaries
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A transform boundary is a place where two plates slip past each other, moving in opposite directions.
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San Andreas Fault in California
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Let’s Watch it in action!
http://www.youtube.com/watch?v=ZxPTLmg0ZCw