Terrane Unit : QN
             Name : Quesnellia

      Description : Upper Triassic and Lower Jurassic arc 
                    volcanics, volcaniclastics and 
                    comagmatic intrusive rocksoverlain by 
                    Jurassic arc-derived clastics. 
                    Amalgamated by latest Triassic time and  
                    accreted to Ancestral North America in
                    the Jurassic. Triassic and Jurassic 
                    faunas differ from those in coeval, 
                    co-latitudinal cratonal rocks.             

      Assemblages : TrJN Nicola, JHA Hall                              

   Plutonic Rocks : LTruP Polaris Suite, EJgG Guichon Suite, EJyCM     
                    Copper Mountain Suite, EJqB Black Lake Suite      
 
         Age Range: Upper Triassic - Early Jurassic
       Maximum Age: 235.0 Ma
       Minimum Age: 187.0 Ma