Continental Drift & Seafloor Spreading - OL (23-24)

Front

What is the theory that states continents were once part of a supercontinent called Pangaea?

Back

Continental Drift

Front

What is the process called when new seafloor forms at mid-ocean ridges?

Back

Seafloor Spreading

Front

Where are the oldest rocks on the seafloor located?

Back

Farthest from the mid-ocean ridge

Front

What is the name of the supercontinent that existed millions of years ago?

Back

Pangaea

Front

Where are the youngest rocks on the seafloor located?

Back

Closest to the mid-ocean ridge

Front

What evidence supports the theory of Continental Drift?

Back

Fossil Distribution, Land-form Evidence, and matching coastlines.

Front

What geological feature is formed at mid-ocean ridges?

Back

New oceanic crust from magma.

Front

What is the significance of the mid-ocean ridge in seafloor spreading?

Back

It is where new seafloor is created.

Front

What type of plate boundary is associated with seafloor spreading?

Back

Divergent boundary.

Front

What happens to the age of rocks as you move away from the mid-ocean ridge?

Back

The age of rocks increases.