The Online Handbook of Illinois Stratigraphy (ILStrat)
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Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.
M. E. Hopkins and J. A. Simon
The Wise Ridge Coal Member of the Spoon Formation (Kosanke et al., 1960, p. 33).
Named for Wise Ridge, a hill about 3 miles west of the type section.
It previously was called the Stonefort Coal (Wanless, 1939, p. 30, 103). ===History/background=== ==Type section== ===Type location=== The type section is a roadcut in Stonefort, Williamson County (NE SE 25, 10S-4E). ===Type author(s)=== ===Type status=== ==Reference section== ===Reference location=== ===Reference author(s)=== ===Reference status=== ==Stratigraphic relationships== It is commonly separated from the Stonefort Limestone (above) by 1-2 feet of black fissile shale. ==Extent and thickness== The coal is lenticular but is widely present in southern Illinois. It is generally less than 3 feet thick and is very thin at some places. ==Lithology== ==Core(s)== ==Photograph(s)== ==Contacts== ==Well log characteristics== ==Fossils== ==Age and correlation== ==Environments of deposition== ==Economic importance== ==Remarks== ==References== KOSANKE, R. M., J. A. SIMON, H. R. WANLESS, and H. B. WILLMAN, 1960, Classification of the Pennsylvanian strata of Illinois: Illinois State Geological Survey Report of Investigations 214, 84 p.<br> WANLESS, H. R., 1939, Pennsylvanian correlations in the Eastern Interior and Appalachian coal fields: Geological Society of America Special Paper 17, 130 p. {{Codes |membercode=3320 |geo_unit=t-wr |geo_image=Penn_symbol.png }}
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