You need the Flash Player version 8.0.0.0 or higher and a JavaScript enabled browser to view this site

Mountains of Fire: Between Tectonic Plates

Related Article: Learn more about Earthquakes.

A divergent boundary occurs where two plates are moving apart. A transform boundary is where two plates move past each other. A convergent boundary is where two plates collide.

browse videos in geology

Why? Tell Me Why! Alaska Oil (1:30)

After spending a week in Alaska, Discovery News' Kasey-Dee Gardner wanted to find out why the state is so abundant in that resource.

How Blue Diamonds Work (1:29)

Watch this video about how blue diamonds work on HowStuffWorks. A flawless, 5-carat blue diamond ring is expected to fetch more than $6 million at a Hong Kong Sotheby's auction - this is more than typical gems and jewels two or three times its size.... More »

What Are the Odds? Yellowstone (2:52)

What are the odds a volcano will erupt in Yellowstone National Park? Learn more about odds in this video.

Sea Cliffs (0:41)

From the Archives of Discovery: Over time, the ocean erodes rock into dramatic and strange formations. Learn more about sea cliffs here.

Glitzy Gifts That Give Back (5:09)

The Diamond Information Center has spearheaded a project with four well-known charities in an effort to give back to those afflicted or affected by AIDS and Cancer. Shoppers will have the opportunity to purchase jewelry pieces with a portion of... More »

recently added

Life - Earliest Evidence (3:01)

Rocks dating back nearly four billion years hold the oldest record of life on Earth, and possibly clues to the nature of life on other planets.

Life - Earliest Evidence (3:02)

Rocks dating back nearly four billion years hold the oldest record of life on Earth.

What Are the Odds? Yellowstone (2:52)

What are the odds a volcano will erupt in Yellowstone National Park? Learn more about odds in this video.

Sea Cliffs (0:41)

From the Archives of Discovery: Over time, the ocean erodes rock into dramatic and strange formations. Learn more about sea cliffs here.