Tectonic Unit: PKTTr
         Name: undivided Taku
 
  Description: Carbonaceous slate and limestone associated with
               volcanics yielding Middle to Late Triassic fossils;
               marine; associated with Taku Assemblage (PKT)
 
    Formation: Insular Belt
                  Taku Terrane
                       PKT  Taku
 
    Age Range: Middle to Upper Triassic
  Maximum Age: 241.1 Ma
  Minimum Age: 208.0 Ma