Antrim Shale (IND2;0)

State	Indiana
Name	Antrim Shale
Geologic age	Devonian
Original map label	D2
Primary rock type	black shale
Secondary rock type	shale
Other rock types	limestone
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale > Black-shale Minor Sedimentary > Clastic > Mudstone > Shale Sedimentary > Carbonate > Limestone
Map references	Gray, Henry H., Ault, Curtis, H., and Keller, Stanley, J., 1987, Bedrock geologic map of Indiana: Dept. of Natural Resources, Indiana Geological Survey, Miscellaneous Map 48, scale = 1:500,000
Unit references	Gray, Henry H., Ault, Curtis, H., and Keller, Stanley, J., 1987, Bedrock geologic map of Indiana: Dept. of Natural Resources, Indiana Geological Survey, Miscellaneous Map 48, scale = 1:500,000
Geographic coverage	Allen - DeKalb - Elkhart - Fulton - Jasper - Kosciusko - Lake - LaPorte - Marshall - Noble - Porter - Pulaski - Saint Joseph - Starke - Whitley