Lithosphere and Asthenosphere Flashcard

Front

Where does lava come from?

Back

Lava comes from the mantle.

Front

Where is the asthenosphere located?

Back

The asthenosphere is located below the crust.

Front

What is the lithosphere composed of?

Back

The lithosphere is composed of the crust and upper mantle.

Front

What is the lithosphere made of?

Back

The lithosphere is made of brittle material.

Front

What is the main difference between the lithosphere and asthenosphere?

Back

The main difference is their behavior under stress.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the upper mantle that allows for the movement of tectonic plates.

Front

What is the role of the lithosphere in plate tectonics?

Back

The lithosphere is broken into tectonic plates that float on the semi-fluid asthenosphere.

Front

How thick is the lithosphere?

Back

The lithosphere is typically about 100 kilometers thick.

Front

What materials make up the lithosphere?

Back

The lithosphere is made up of solid rock, including the crust and the uppermost part of the mantle.

Front

What is the temperature range of the asthenosphere?

Back

The temperature in the asthenosphere ranges from about 1300°C to 1600°C.