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While not an official phrase, a geologic ladder of time represents the different sections of history in rising rock layers that may be exposed due to weatherization, by excavation. Scientists segment the different eras of earth’s time based on major events that occurred, such as mass extinctions, climate shifts or appearances of major plant and animal groups.

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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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Fascinating holes sculpted through geological processes.

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Geological formations are truly amazing creation of nature and continue to captivate people’s interest because of the splendid beauty and view they provide.

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Dirt can be a fascinating subject especially if you happen to be someone who likes to dig around in it, someone like a rock hound or a geologist or an archeologist or a nine year old boy. He likes dirt. He likes rocks and minerals and he is very glad his old grandmother isn’t quite as old as dirt and we still have a lot of outdoor adventure and rock hound ahead of us…read more.

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A description of how earthquakes form.

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The two forms of iron.

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An in-depth guide to Plate Tectonics.

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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.