Lava eruptions dammed the Grand Canyon in the geologic past, with the Colorado River backing up until it broke through the eruptive materials. What if it were to happen again?
Retired USGS volcanologist Wendell Duffield has published a fictional book built around that premise. "Jiggles, Rolf, and the Remarkable Finale to Frank Stone's Career," is published by iUniverse.com and available through Amazon and commercial book sellers.
Tarbellastraea raulini Coral Fossil
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