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The Precambrian in Arizona, US

Precambrian in Arizona map
 

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Precambrian

Precambrian Fossils

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Paleontology and geology

Precambrian rocks in Arizona record at least three sequences of deposition, metamorphism, and erosion. Sediments were deposited, buried, turned to rock, and altered by heat and pressure. Then some of the rocks were eroded, and new sediments were laid down. By the Late Precambrian, shallow marine conditions prevailed throughout the state. The limestones formed from this time contain fossil evidence of stromatolites.

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Resources

Resources

Courses and Lectures (showing 1 of 1 listings)

Paleogeography of the Southwestern U.S.: The paleogeography of the southwestern U.S. from 1.8 billion years ago to 10 million years ago. Text and images by Dr. Ron Blakey from Northern Arizona University.

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