Study says Grand Canyon is much older than previously thought

11/29/2012 | Washington Post, The

Researchers found evidence suggesting that the Grand Canyon could be older than 6 million years, as is currently believed. Scientists reconstructed the early landscape through thermochronology, and found a major canyon sitting in the location around 70 million years ago. Research findings suggest that the California River etched the western part of the canyon during the days of dinosaurs and a different river formed the eastern part around 55 million years ago.

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