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Last updated on November 17th, 2009
| Formation of the Appalachians: Click here |
| Some rocks in the core of the Appalachian Mountains are more than 1 billion years old and construction of the mountains relates to the Supercontinent Pangea. |
| Rock Slide Caught on Tape: Click here |
| Landslides are one of the most destructive geologic processes. They can happen with very little warning almost anywhere in the country. |
| Antarctica's Lambert Glacier: Click here |
| Lambert Glacier is a major glacier in East Antarctica and is also the largest glacier in the world. |
| U.S. Atlantic Coast and Sea Level Rise: Click here |
| As sea level rises, coastal inhabitants respond by building barriers. In the long term, planning that allows wetlands to migrate inland is recommended. |
| What are Minerals?: Click here |
| Minerals are natural crystalline substances with distinct chemical compositions. Knowledge of minerals is the foundation of geology, the study of rocks and of the Earth. |
| How the Earth's Continents Move: Click here |
| The heat at the center of the earth is responsible for the slow movement of the continents. |
| Southern Hemisphere Climatic Similarities: Click here |
| South America, New Zealand and Tasmania have similar Quaternary terrestrial glacial records. |
| The Abiotic Theory of Petroleum Formation: Click here |
| Most scientists believe that oil comes from organic material that has been transformed by Nature over a very long period of time. |
| Antarctica's Mount Erebus Volcano: Click here |
| Antarctica is most well-known for its glaciers and penguins, but this snow-covered continent is very much alive with geothermal and volcanic activity. |
| Diamonds -- the World's Most Valuable Gemstones: Click here |
| Treasured for centuries as symbols of extreme wealth and power, diamonds are made of pure carbon and come from deep within the earth's crust. |