Continental Drift Flashcard

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What is the Theory of Continental Drift?

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The Theory of Continental Drift proposes that continents have moved over geological time from a single landmass (Pangaea) to their current locations.

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Who proposed the Theory of Continental Drift?

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Alfred Wegener proposed the Theory of Continental Drift in the early 20th century.

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What evidence supports the Theory of Continental Drift?

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Evidence includes the fit of continental coastlines, fossil distribution, geological similarities, and glaciation patterns.

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What are the two types of Earth's crust?

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The two types of Earth's crust are continental crust and oceanic crust.

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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, which eventually broke apart to form the current continents.

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How does glaciation evidence in Africa support the Theory of Continental Drift?

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It indicates that Africa was once located closer to the South Pole, suggesting a different historical position of the continent.

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What is the significance of fossil distribution in supporting the Theory of Continental Drift?

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Fossils of the same species found on different continents suggest that these continents were once connected.

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What geological features provide evidence for the Theory of Continental Drift?

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Mountain ranges and rock formations that align across continents indicate they were once part of the same landmass.

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What is the difference between continental crust and oceanic crust?

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Continental crust is thicker and less dense than oceanic crust, which is thinner and denser.

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What is the role of plate tectonics in the Theory of Continental Drift?

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Plate tectonics explains the movement of the Earth's lithosphere, which causes continents to drift over time.