https://ilstratwiki.web.illinois.edu/index.php?title=Historical:McClearys_Bluff_Coal_Member&feed=atom&action=historyHistorical:McClearys Bluff Coal Member - Revision history2024-03-29T10:18:37ZRevision history for this page on the wikiMediaWiki 1.38.4https://ilstratwiki.web.illinois.edu/index.php?title=Historical:McClearys_Bluff_Coal_Member&diff=16010&oldid=prevJennifer.Obrad at 15:46, 23 January 20172017-01-23T15:46:52Z<p></p>
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{{Tree<br />
|tree1=McLeansboro Group <br />
|tree2=Mattoon Formation <br />
|tree3=McClearys Bluff Coal Member <br />
|tree21=Paleozoic Erathem <br />
|tree22=Pennsylvanian Subsystem <br />
|tree23=Missourian Series <br />
|tree31=Absaroka Sequence <br />
|category1=Paleozoic Erathem <br />
|category2=Pennsylvanian Subsystem <br />
|category3=Absaroka Sequence<br />
|category4=McLeansboro Group<br />
|category5=Missourian Series<br />
|category6=Mattoon Formation<br />
|category7=Coal<br />
}}<br />
==Authors==<br />
M. E. Hopkins and J. A. Simon<br />
<br />
==Name Origin==<br />
The McCleary 's Bluff Coal Member of the Mattoon Formation (Kosanke, 1950, p 89; Kosanke et al., 1960, p. 40, 51) is named for McCleary's Bluff, Wabash County.<br />
==Type Section==<br />
The type section consists of a 3-inch coal seam exposed on the bluff overlooking the Wabash River (NW SW SE 29, 2S-13W).<br />
==Extent and Thickness==<br />
The only known exposures of the McCleary's Bluff Coal occur on McCleary's Bluff and at Keys Hill in Wabash County (NE SW 25, 1S-13W). <br />
==Stratigraphic Position==<br />
Its stratigraphic position is approximately 50 feet above the Friendsville Coal (Kosanke et al., 1960). It was erroneously placed below the Friendsville Coal by Kosanke (1950) and Siever (''in'' Wanless, 1956). An unnamed coal member approximately 1 foot thick lies 7 feet above the McCleary's Bluff Coal in its type area.<br />
==References==<br />
KOSANKE, R. M., 1950, Pennsylvanian spores of Illinois and their use in correlation: Illinois State Geological Survey Bulletin 74, 128 p.<br><br />
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><br />
WANLESS, H. R., 1956, Classification of the Pennsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.<br />
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