Pangea and Plate Boundaries

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What is Pangaea?

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Pangaea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras, where all the continents were joined together.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

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What is oceanic crust?

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Oceanic crust is the part of Earth's crust that underlies the ocean basins, and it is denser than continental crust.

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What is continental crust?

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Continental crust is the part of Earth's crust that forms the continents, and it is less dense than oceanic crust.

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Who proposed the theory of continental drift?

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Alfred Wegener proposed the theory of continental drift, suggesting that continents were once connected and have since drifted apart.

Tags

NGSS.MS-ESS2-2

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What is a divergent boundary?

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A divergent boundary is where two tectonic plates move away from each other, often creating new crust as magma rises to the surface.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Front

What is a convergent boundary?

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A convergent boundary is where two tectonic plates collide, which can lead to the formation of mountains or subduction zones.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

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What is a transform boundary?

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A transform boundary is where two tectonic plates slide past each other horizontally, causing earthquakes.

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NGSS.MS-ESS3-2

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What geological features are formed at divergent boundaries?

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Geological features such as rift valleys and mid-ocean ridges are formed at divergent boundaries.

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NGSS.MS-ESS2-2

Front

What geological features are formed at convergent boundaries?

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Convergent boundaries can create mountains, deep ocean trenches, and volcanic arcs.

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NGSS.MS-ESS2-2

Front

What is subduction?

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Subduction is the process where one tectonic plate moves under another plate and sinks into the mantle.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-3