Ordovician rocks, undifferentiated

Shale and limestone; upper part of Maquoketa Group in deep buried valleys; Maquoketa to upper part of Knox Supergroup in Kentland area
State Indiana
Name Ordovician rocks, undifferentiated
Geologic age Silurian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Carbonate > LimestoneOrdovician rocks, undifferentiated shale and limestone; upper part of Maquoketa Group in deep buried valleys; Maquoketa to upper part of Knox Supergroup in Kentland area
Minor
Sedimentary > Carbonate > DolostoneOrdovician rocks, undifferentiated shale and limestone; upper part of Maquoketa Group in deep buried valleys; Maquoketa to upper part of Knox Supergroup in Kentland area
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.

NGMDB product
Counties Adams - Blackford - Delaware - Grant - Henry - Jay - Madison - Newton - Randolph - Wabash