Tectonic Unit: PCW
         Name: Wales
 
  Description: greenschist and amphibolite facies schist and
               gneiss derived from basaltic to andesitic pillow
               lava, breccia and tuff and graded-bedded
               greywacke, minor marble and metarhyolite; mainly
               marine
 
    Formation: Insular Belt
                  Craig Subterrane of Alexander Terrane
                       PC   Wales
 
    Age Range: Upper Proterozoic - Lower Cambrian
  Maximum Age: 1000.0 Ma
  Minimum Age:  536.0 Ma