Divergent Boundary Flashcard

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.

Front

What is a Rift Valley?

Back

A Rift Valley is a lowland region that forms where tectonic plates move apart, typically found under continental crust.

Front

What geological feature is formed at divergent boundaries between oceanic crust?

Back

Mid-ocean ridge.

Front

What type of rocks are typically found at mid-ocean ridges?

Back

Relative young rocks.

Front

What is seafloor spreading?

Back

Seafloor spreading is the process by which new oceanic crust forms at divergent boundaries, pushing older crust away.

Front

What are the two main types of divergent boundaries?

Back

Continental divergent boundaries and oceanic divergent boundaries.

Front

What is the significance of mid-ocean ridges?

Back

Mid-ocean ridges are significant as they are sites of new crust formation and are associated with volcanic activity.

Front

What happens to the crust at a divergent boundary?

Back

The crust is pulled apart, allowing magma to rise and create new crust.

Front

What is an example of a continental divergent boundary?

Back

The East African Rift.

Front

What is the role of magma at divergent boundaries?

Back

Magma rises to fill the gap created by the separating plates, forming new crust.