Tectonic Unit: TrJH
         Name: Hyd
 
  Description: rhyolite east of Dixon Entrance yielding concordant
               U-Pb age of 188 Ma; marine and nonmarine; associated
               with Hyd Assemblage (TrH)
 
    Formation: Coast Belt
                  Stikine and Alexander Terranes
                       lJ   Moffat
                       uTr  Randall
 
    Age Range: Upper Triassic - Lower Jurassic
  Maximum Age: 235.0 Ma
  Minimum Age: 178.0 Ma