Continental Drift/Sea Floor Spreading

Front

What is Pangaea?

Back

A supercontinent that existed in Earth's distant past.

Front

What evidence for Continental Drift indicates that glacial deposits and scarring are found on continents with warm climates today?

Back

Glacial Evidence.

Front

What type of information did Wegener NOT collect to support his continental drift hypothesis?

Back

Data on seafloor magnetic fields.

Front

What evidence for Continental Drift states that the continents fit together like puzzle pieces?

Back

Continent Shape.

Front

Where would you find the OLDEST seafloor?

Back

Farthest from the mid-ocean ridge.

Front

What is the theory of Continental Drift?

Back

The hypothesis that continents have moved over geological time from a single supercontinent.

Front

What is Sea Floor Spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust moves away.

Front

What role do fossils play in supporting the theory of Continental Drift?

Back

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

Front

What is the significance of the mid-ocean ridge in Sea Floor Spreading?

Back

It is the underwater mountain range where new oceanic crust is created.

Front

What is the concept of tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact at their boundaries.