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21 Cards in this Set
- Front
- Back
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Continental Crust is made of
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Granite
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Oceanic crust is made of
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Basalt
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When new crust is made on the ocean floor due to a divergent boundary this is called
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mid ocean ridge
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When one plate dives underneath another plate and is recycled in the mantle this is called
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subduction
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J Tuzo Wilson used information from two other theories to help form his theory of plate tectonics. What were the two theories?
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1. Continental drift
2. Sea floor spreading |
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Pangaea
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Mean "all Lands"
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Glossopeteris
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Fern like fossils
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Continental drift
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Theory by Alfred Wegener
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lithosphere
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Layer of ridged or hard rock
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Atmosphere
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layer of soft rock
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Plate tectonics
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Theory by J tuzo Wilson
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subduction
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When one plate dives under another
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Rift Valley
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deep valley that forms when two plates move apart on land
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Deep sea trench
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Deep valley in the ocean where the crust sinks towards the mantle
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Mid ocean trench
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Undersea mountain made buy divergent boundary
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What are the three layers of earth
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Crust
Mantle Outer core Inner core |
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What is the divergent plate boundary
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Divergent plate boundary is a feature that exist between two tectonic pates that move away from each other.
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What is a convergent plate boundary
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A convergent plate boundary is an region that is breaking down
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What is a convergent plate boundary
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A convergent plate boundaries are places where plates move sideways past each other
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What is the difference between the lithosphere and the atmosphere
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The lithosphere is made up the crust plus the very upper part of the mantle, whereas the atmosphere is only upper mantle material.
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Why is the inner core of the Earth different that the outer core
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The inner core and the outer core are different due to pressure, inner core is solid ad the outer core is liquid
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