Tectonic Unit: ODK
         Name: Kaskawulsh

  Description: thick-bedded limestone, interbeds of shale and    
               local lenses of conglomerate (ODKC); laminated    
               limestone, calcareous mudstone, siltstone and     
               phyllite (ODKP); marine                           

    Formation: Insular Belt  
                  Craig Subterrane of Alexander Terrane
                     OD   Kaskawulsh 
                     D    Black Cap 
                     SD   Kennel Cr., Kuiu 
                     S    Rendu, Willoughby, Pyramid Pk., Tidal, Pt. Augusta, 
                          Bay of Pillars                                        

    Age Range: Ordovician - Devonian
  Maximum Age: 510.0 Ma
  Minimum Age: 362.5 Ma