Earth Revealed
Volcanism (4x2)
Air date: May 11, 1992
Volcanoes provide clues about what is going on inside Earth. Animations illustrate volcanic processes and how plate boundaries are related to volcanism. The program also surveys the various types of eruptions, craters, cones and vents, lava domes, magma, and volcanic rock. The 1980 eruption of Mount St. Helens serves as one example.
- Premiered: Feb 1992
- Episodes: 26
- Followers: 0