https://ilstratwiki.web.illinois.edu/index.php?title=Oglesby_Member&feed=atom&action=historyOglesby Member - Revision history2024-03-29T12:32:42ZRevision history for this page on the wikiMediaWiki 1.38.4https://ilstratwiki.web.illinois.edu/index.php?title=Oglesby_Member&diff=15476&oldid=prevJennifer.Obrad: /* Name */2017-01-12T18:07:50Z<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=Champlainian Series<br />
|category8=Pecatonica Formation<br />
|tree1=Ottawa Limestone Megagroup<br />
|tree2=Platteville Group<br />
|tree3=Pecatonica Formation<br />
|tree4=Oglesby 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 Oglesby Member of the Pecatonica Formation (Templeton and Willman, 1963, p. 77).<br />
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===Derivation===<br />
Named for Oglesby, La Salle County.<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 Oglesby Member is in Matthiessen State Park east of Oglesby (NE NE NE 31, 33N-3E), where the member is 12 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 status===<br />
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==Stratigraphic relationships==<br />
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==Extent and thickness==<br />
The Oglesby Member is absent in Illinois north of the type locality, but it is as much as 15 feet thick in southern Illinois.<br />
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==Lithology==<br />
The Oglesby Member is pure, light gray, white, or buff calcarenite that is laminated, rarely conglomeratic, and locally cross bedded. It is medium to coarse grained in the type locality but fine grained elsewhere. A strong iron-stained corrosion surface occurs on the top and is equivalent to a similar surface on the top of the Medusa Member in northern Illinois, where the Oglesby is absent.<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=8100<br />
|geo_unit=--<br />
}}</div>Jennifer.Obrad