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Untitled timeline
Proterozoic
Paleoproterozoic
17,000,000,000 BC - 13,000,000,000 BC
% complete
The land of North Carolina began to form.
Meso-proterozoic
13,000,000,000 BC - 670,000,000 BC
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The first mountains were formed in North Carolina. Called the Grenville Mountains, they eroded long ago, but rocks formed at this time lie underneath the Appalachians and are exposed in parts of the Piedmont and Coastal Plain.
Neo-proterozoic
670,000,000 BC - 542,000,000 BC
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Fossilized tracks of primitive worms have been found in those volcanic rocks.
End of Proterozoic Eon
542,000,000 BC
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Phanerozoic
Paleozoic - Cambrian
542,000,000 BC - 488,000,000 BC
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542: The Kings Mountain Belt was formed about 540 million years ago as the Piedmont slowly moved into the rest of the continent.
Paleozoic-Silurian
488,000,000 BC - 416,000,000 BC
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