Tectonic Unit: CM
         Name: Mattson
 
  Description: northward and northeasterly derived, mainly south
               and southwestward prograding deltaic quartz
               sandstone, shale, minor quartz and chert-pebble
               conglomerate, limestone and coal; includes
               Endicott clastics basal to Lisburne Assemblage;
               marine and nonmarine
 
    Formation: Omineca Belt
                  Ancestral North America
                       MP   Tsichu
               Foreland Belt
                  Ancestral North America
                       MP   Mattson, Stoddart, Taylor Flat, Kiskatinaw,
                            Golata
                       M    Endicott (CME), Etherington;
                       DM   Tuttle
 
    Age Range: Carboniferous
  Maximum Age: 362.5 Ma
  Minimum Age: 290.0 Ma