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Intriguingly, a similar mass extinction has ushered in the reign of the dinosaurs. Indeed, over the last 600 million years of life on earth, there seems to have been a cataclysmic change roughly every 60 to 70 million years, and smaller changes roughly every 30 million.

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Are the recent earthquakes and tsunami in Samoa and Sumatra an indication that the entire Pacific rim is about to erupt?

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An article about Earth.

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Ever wondered about the landscape of Venus. Find out about the landscape of Venus.

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This article discusses the real killer that accompanies a volcanic eruption.

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A description of how MOUNT ST. HELEN’S has erupted.

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The smallest active volcano in the world.

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The guide to volcanoes for geology rookies.

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Throughout history, the earth has been given the names of the gods. Volcanic rocks were named after the god of fire and Intrusive rocks were named after the god of the underworld.

These rocks are found all over the world, in rare form of course, stemming from a place that ignites change from within.

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Use and forms of rocks and stones.