Madison County Fireclay prospect (Cheltenham Clay), Nameoki Township, Madison Co., Illinois, USA
|Latitude & Longitude (WGS84):||38° 41' 58'' North , 90° 2' 36'' West|
|Latitude & Longitude (decimal):||38.69972,-90.04361|
|Köppen climate type:||Cfa : Humid subtropical climate|
Commodities (Major) - Clay - Fire (Refractory); (Trace) - Titanium, Silica, Aluminum, Iron
Development Status: Prospect
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
No minerals currently recorded for this locality.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
252.17 - 541 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (252.17 - 541 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
|Moscovian - Bashkirian|
307 - 323.2 Ma
Age: Pennsylvanian (307 - 323.2 Ma)
Stratigraphic Name: Tradewater Formation
Comments: Thickness from stratigraphic columns: Tradewater Fm (0-650’) in southern Illinois (south of 40 degrees north latitude); Tradewater Fm (0-195’) in northern Illinois (north of 40 degrees north latitude). The Tradewater Formation represents the upper part of the Raccoon Creek Group. The Tradewater Formation in southern Illinois includes, from oldest to youngest, the Reynoldsburg Coal, Bell Coal, "3rd and 4th Siggins", "Mansfield", "Casey", Rock Island Coal, Curlew Limestone, Delwood Coal, Murphysboro Coal, Mt. Rorah Coal, Stonefort Limestone, and Carrier Mills Shale, and in northern Illinois, only includes the Rock Island Coal. [Oil well drillers' terms shown in quotation marks.]
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.