Tectonic Unit: DK
         Name: Karheen
 
  Description: fining-upward sequence of crossbedded
               conglomerate, grading into breccia both containing
               clasts of Ordovician granitic and volcanic rocks;
               overlain by reddish brown sandstone, siltstone,
               mudstone, chert-pebble conglomerate, black shale,
               limestone; minor dacite; marine and nonmarine
 
    Formation: Insular Belt
                  Craig Subterrane of Alexander Terrane
                       D    Karheen, Port Refugio
 
    Age Range: Devonian
  Maximum Age: 408.5 Ma
  Minimum Age: 362.5 Ma