Continental Drift and Pangaea Concepts

Front

What is Continental Drift?

Back

The theory that continents have moved over geological time and were once joined together in a supercontinent called Pangaea.

Front

What is Pangaea?

Back

A supercontinent that existed during the late Paleozoic and early Mesozoic eras, which included almost all of the Earth's landmasses.

Front

What evidence supports the theory of Continental Drift?

Back

Fossil evidence, geological similarities, and the fit of continental coastlines.

Front

What are Mesosaurus fossils?

Back

Fossils of a freshwater reptile found in both South America and Africa, supporting the idea that these continents were once connected.

Front

What is Glossopteris?

Back

An extinct genus of seed ferns whose fossils have been found in South America, Africa, Antarctica, and India, indicating these landmasses were once joined.

Front

Why did scientists initially reject Wegener's theory?

Back

They believed there was no explanation for how continents could move.

Front

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

Back

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

Front

What role do tectonic plates play in Continental Drift?

Back

Tectonic plates are large sections of the Earth's crust that move and can cause continents to drift apart or collide.

Front

What is the theory of plate tectonics?

Back

A scientific theory that describes the large-scale movements of Earth's lithosphere, which includes the movement of continents.

Front

How do scientists measure the movement of continents today?

Back

Using GPS technology and satellite measurements to track the movement of tectonic plates.