Tectonic Unit: uPPzN
         Name: Neruokpuk
 
  Description: mainly Proterozoic-Lower Cambrian green, buff, red
               and maroon argillite and siltstone with trace
               fossils, limestone and argillite; grey, green and
               red quartzite and argillite; overlain by
               Ordovician and Silurian argillite and chert;
               succeeded by Devonian (?) argillite, sandstone and
               chert-pebble conglomerate; marine; includes
               equivalents of Hyland, Rocky Mountains and Earn
               assemblages in Arctic Alaska Terrane
 
    Formation: Foreland Belt
                  Arctic Alaska Terrane
                       uPPz  Neruokpuk
 
    Age Range: Upper Proterozoic - Paleozoic
  Maximum Age: 1000.0 Ma
  Minimum Age:  245.0 Ma