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Home ›  Articles › The North American Tapestry of Time and Terrain › Rock Age ›  Late Proterozoic Rocks





 
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Generalized Geologic Map of the Conterminous United States
North America Shaded Relief
 

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  The North American Tapestry of Time and Terrain

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Legend and Rock Ages
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Legend and Rock Ages
Cenozoic
Mesozoic
Paleozoic
Precambrian
  • Proterozoic
    –Late Proterozoic
    –Middle Proterozoic
    –Early Proterozoic
  • Archean
  Legend and Rock Ages
 

Late Proterozoic Rocks - 900 to 540 million years ago

map of Late Proterozoic rocks
 

 
 
 

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Last modified:  Wednesday, 26-Jan-2011 17:56:18 CST