Muscatatuck Group

Muscatatuck Group
Stratigraphic range: Devonian
TypeGroup
Sub-units
Northern Indiana
Southern Indiana, Illinois and Kentucky
  • North Vernon Limestone
    • Beechwood Limestone
    • Silver Creek Limestone
    • Speed Member
  • Jeffersonville Limestone
    • Dutch Creek Sandstone Member
    • Geneva Dolomite Member
    • Vernon Fork Member
    • Fraunfelter
UnderliesNew Albany Shale and Antrim Shale in Northern Indiana
OverliesNew Harmony Group in Southern Indiana Wabash Formation (Salina Group) Elsewhere
Lithology
PrimaryDolomite, limestone
OtherSandstone Anhydrite Gypsum
Location
RegionIndiana, Illinois, Kentucky
CountryUnited States
Type section
Named forIts many exposures along the Muscatatuck River
Named byShaver, 1974

The Muscatatuck Group is a Middle Devonian Aged unit found in Illinois, Indiana and Kentucky. It is characterized by being predominantly made up of Dolomite and limestone.