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Mid-Ocean ridges is where tectonic plates are doing what |
spreading apart |
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What leads to creation of Island Arcs |
collision of two oceanic plates |
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What was the earth’s first landmass called |
pangaea |
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What is the border between two tectonic plates |
boundary |
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How can Mountain formation result |
two continental plates collide |
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Which of the earth’s layers is broken into several large tectonic plates |
the lithosphere |
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When did the Himalayan Mountain Range begin to form |
40-50 million years ago |
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true or false: continental crust is thinner than oceanic crust |
false |
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What kind of plate boundary is found where the North American and Caribbean Plates meet |
transform boundary |
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What is happening at the subduction zone of the Juan de Fuca and North American Plates |
one plate is being pulled under the other |
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true or false: continental crust is thicker than oceanic crust |
true |
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Which scientist is credited with proposing the ideas that led to the development of the plate tectonics theory |
alfred wegener |
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California’s San Andreas Fault is identified as what |
a strike-slip fault |
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When did the supercontinent Pangaea start to break up |
200 million years ago |
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What solid layer of the earth is made of mostly iron and nickel |
the inner core |
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What kind of plate boundary runs across Iceland |
divergent boundary |
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What is the earth’s outermost layer |
the crust |
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What kind of plate boundary is found at the meeting point of the Philippine and Pacific Plates |
convergent boundary |
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What is NOT likely to happen at a divergent boundary |
mountain formation |
|
what boundary moves outward |
divergent boundary |
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What is the earth’s only liquid layer |
the outer core |
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What geologic events can occur at a transform boundary |
earthquakes |
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Which layer is found directly above the earth’s core |
the mantle |
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The tectonic plates float on which semiliquid layer |
the asthenosphere |
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What type of crust is found under the continents |
continental crust |
|
What type of crust is found under the oceans |
oceanic crust |
|
What concept is part of the theory of plate tectonics |
continents are in slow constant motion |
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