Continental Drift

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What is Continental Drift?

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The theory that continents have moved over geological time and were once joined together in a single landmass.

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What is Pangaea?

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

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What are fossils?

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Remains or traces of ancient organisms preserved in rock, providing evidence for the history of life on Earth.

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What type of climate did Glossopteris indicate for Antarctica?

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Warm and wet climate.

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What evidence did Wegener use to support his theory of continental drift?

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Fossils, glacial deposits, and geological similarities between continents.

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What is glacial evidence?

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Physical signs of past glacial activity, such as scratches or grooves in rocks, indicating that glaciers once covered the area.

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What is the significance of the fossil Glossopteris?

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It provides evidence that continents like Antarctica, South America, and Africa were once connected.

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What type of data was NOT used by Wegener to support his hypothesis?

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Seafloor magnetic data.

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What are tectonic plates?

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Large sections of the Earth's lithosphere that move and interact, causing geological activity.

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What is the theory of plate tectonics?

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A scientific theory explaining the movement of the Earth's plates and how they shape the Earth's surface.