Wegener, Plate Tectonics, & Sea Floor Spreading

Front

What is a convergent boundary?

Back

A convergent boundary is a tectonic plate boundary where two plates move toward each other, often resulting in one plate being forced below the other, leading to the formation of mountains, ocean trenches, or volcanic activity.

Front

What landform is typically found at a convergent boundary between oceanic crust?

Back

Ocean Trench.

Front

What landform is typically found at a convergent boundary between continental crust?

Back

Mountain.

Front

What is a divergent boundary?

Back

A divergent boundary is a tectonic plate boundary where two plates move away from each other, leading to the formation of new crust, often seen at mid-ocean ridges.

Front

What type of landform is created at a divergent boundary?

Back

Mid-Ocean Ridge.

Front

What is a transform boundary?

Back

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

Front

What is the significance of Wegener's Continental Drift theory?

Back

Wegener proposed that continents were once connected and have drifted apart over time, but his theory was initially rejected due to lack of explanation for the mechanism of movement.

Front

Why was Wegener's idea of Continental Drift rejected by geologists?

Back

He couldn't explain how or why the continents moved.

Front

What evidence supports the theory of Plate Tectonics?

Back

Evidence includes the fit of continental coastlines, fossil distribution, geological similarities across continents, and the presence of mid-ocean ridges.

Front

What is sea floor spreading?

Back

Sea floor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and gradually moves away from the ridge.