Tectonic Unit: CL
         Name: Lisburne
 
  Description: northward transgressive limestone, dolomite and
               black chert; marine
 
    Formation: Foreland Belt
                  Ancestral North America
                       P    Ettrain, Blackie
                       MP   Hart River
 
    Age Range: Carboniferous
  Maximum Age: 362.5 Ma
  Minimum Age: 290.0 Ma