Tectonic Unit: pPI
         Name: Ishbel
 
  Description: Permian siltstone, sandstone, chert, phosphate,
               siliceous mudstone; Pennsylvanian dolomitic
               siltstone, chert breccia, sandstone,
               orthoquartzite; marine
 
    Formation: Omineca Belt
                  Ancestral North America
                       P    Mt. Christie
               Foreland Belt
                  Ancestral North America
                       P    Ishbell:
                       luP  Mowitch, Fantasque
                       lP   Kindle, Ranger Canyon, Belcourt, Johnston Canyon
                       P    Spray Lakes: Kananaskis, Tobermory, Storelk,
                            Tyrwhitt, Hanington
 
    Age Range: Pennsylvanian - Permian
  Maximum Age: 322.8 Ma
  Minimum Age: 245.0 Ma