State | Iowa |
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Name | Gilmore City Formation |
Geologic age | Lower Mississippian, upper Kinderhookian to Middle Mississippian, lower Osagean |
Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)primarily coated grain/oolitic to peloidal, variably fossiliferous to intraclastic; minor dolomitic limestone; incidental oncolitic
Minor
Sedimentary > Carbonate > Dolostone (Bed)
Incidental
Sedimentary > Chemical > Chert (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed, Calcareous)gray, calcareous
Sedimentary > Clastic > Sedimentary-breccia (Bed)
|
References | Witzke, Brian J., Anderson, Raymond R., and Pope, John P., 2010, Iowa Geological and Water Survey, DNR, Bedrock Geologic Map of Iowa, OFM-2010-1. Scale 1:500,000. |
NGMDB product | |
Counties | Boone - Buena Vista - Calhoun - Cherokee - Franklin - Grundy - Hamilton - Hardin - Humboldt - Jasper - Marshall - Monona - Pocahontas - Sac - Story - Webster - Woodbury - Wright |