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Title: Excellent Introduction to Geologic Time and Processes.
Review: The story and pictures are so much fun AND educational that I bought 5 copies and donated them to my childrens' school libraries. The story's main thesis is that Earth's crust is in a constant state of erosion, deposition, and upheaval. Over geologic time (i.e. millions of years), the cycle repeats itself again and again. It is an excellent primer on the concept of geologic time and earth processes.
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