![]() If they didn’t see it form, they couldn’t know if a rock was one hundred years or 100 million years old. Relative dating Early geologists had no way to determine the absolute age of a geological material. The principles discussed below are easily seen around the Southwest. ![]() ![]() The rocks themselves are very interesting. In many places, especially the national parks, the formations are fantastic. ![]() The arid climate means that that the rocks are not covered by vegetation. The Southwestern United States is a fantastic place to see geology.
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