https://ilstratwiki.web.illinois.edu/index.php?title=Stillman_Member&feed=atom&action=historyStillman Member - Revision history2024-03-29T11:13:27ZRevision history for this page on the wikiMediaWiki 1.38.4https://ilstratwiki.web.illinois.edu/index.php?title=Stillman_Member&diff=15466&oldid=prevJennifer.Obrad: /* Name */2017-01-12T18:03:40Z<p><span dir="auto"><span class="autocomment">Name</span></span></p>
<p><b>New page</b></p><div>{{Editwithform}}<br />
{{Tree<br />
|category1=Paleozoic Erathem<br />
|category2=Ordovician System<br />
|category3=Blackriveran Stage<br />
|category4=Tippecanoe Sequence<br />
|category5=Ottawa Limestone Megagroup<br />
|category6=Platteville Group<br />
|category7=Plattin Subgroup<br />
|category8=Champlainian Series<br />
|category9=Grand Detour Formation<br />
|tree1=Ottawa Limestone Megagroup<br />
|tree2=Platteville Group<br />
|tree3=Plattin Subgroup<br />
|tree4=Grand Detour Formation<br />
|tree5=Stillman Member<br />
|tree21=Paleozoic Erathem<br />
|tree22=Ordovician System<br />
|tree23=Champlainian Series<br />
|tree24=Blackriveran Stage<br />
|tree31=Tippecanoe Sequence<br />
}}<br />
==Primary source==<br />
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.<br />
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==Contributing author&#40;s&#41;==<br />
H. B. Willman and T. C. Buschbach<br />
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==Name==<br />
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===Original description===<br />
The Stillman Member of the Grand Detour Formation (Templeton and Willman, 1963, p. 85).<br />
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===Derivation===<br />
Named for Stillman's Run, a stream 1.5 miles east of the type section.<br />
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===Other names===<br />
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===History&#47;background===<br />
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==Type section==<br />
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===Type location===<br />
The type section of the Stillman Member is located in a quarry just north of Byron, Ogle County (NE NE SE 30, 25N-11E), where it is 5.3 feet thick.<br />
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===Type author&#40;s&#41;===<br />
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===Type status===<br />
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==Reference section==<br />
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===Reference location===<br />
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===Reference author&#40;s&#41;===<br />
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===Reference status===<br />
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==Stratigraphic relationships==<br />
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==Extent and thickness==<br />
The Stillman Member is 5-8 feet thick in the northern outcrop area, but in the southern outcrop area it thickens from 5 feet in Calhoun County to 64 feet at Cape Girardeau, Missouri.<br />
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==Lithology==<br />
The Stillman Member consists of dolomite-mottled, lithographic limestone, or, in places, vuggy, fine- to medium-grained dolomite. It is generally pure, cherty, fucoidal, and thick bedded or massive. In the southern area it is divisible into an upper fucoidal unit, a middle argillaceous to shaly, partly cherty unit, and a basal calcarenitic fucoidal unit.<br />
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==Core&#40;s&#41;==<br />
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==Photograph&#40;s&#41;==<br />
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==Contacts==<br />
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==Well log characteristics==<br />
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==Fossils==<br />
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==Age and correlation==<br />
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==Environments of deposition==<br />
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==Economic importance==<br />
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==Remarks==<br />
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==References==<br />
TEMPLETON, J. S., and H. B. WILLMAN, 1963, Champlainian Series (Middle Ordovician) in Illinois: Illinois State Geological Survey Bulletin 89, 260 p.<br />
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{{Codes<br />
|membercode=8000<br />
|geo_unit=--<br />
}}</div>Jennifer.Obrad