 |
Encyclopediaplate tectonicsplate tectonics, theory that unifies many of the features and characteristics of continental drift and seafloor spreading into a coherent model and has revolutionized geologists' understanding of continents, ocean basins, mountains, and earth history. Sections in this article: The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved. More on plate tectonics from Infoplease:
- Continental Drift and Plate-Tectonics Theory - Continental Drift and Plate-Tectonics Theory Source: U.S. Dept. of the Interior, Geological Survey ...
- Continental Drift and Plate-Tectonics Theory - Continental Drift and Plate-Tectonics Theory Source: U.S. Dept. of the Interior, Geological Survey ...
- Earthquakes! - Earthquakes About 8,000 mini-quakes a day, and on average, one exceptionally big one per year by ...
- PLATE TECTONICS - Scientists believe that the Earth’s outer crust is made up of about huge fragments, called tectonic plates, that fit together like a cracked eggshell.
- Volcanoes of the World - Volcanoes of the World The Nature of Volcanoes Recent Volcanic Activity The Deadliest Volcanic ...
|
|
