https://ilstratwiki.web.illinois.edu/index.php?title=Elmhurst_Sandstone_Member&feed=atom&action=historyElmhurst Sandstone Member - Revision history2024-03-29T07:40:50ZRevision history for this page on the wikiMediaWiki 1.38.4https://ilstratwiki.web.illinois.edu/index.php?title=Elmhurst_Sandstone_Member&diff=15344&oldid=prevJennifer.Obrad at 23:01, 11 January 20172017-01-11T23:01:22Z<p></p>
<p><b>New page</b></p><div>{{Editwithform}}<br />
{{Tree<br />
|category1=Paleozoic Erathem<br />
|category2=Cambrian System<br />
|category3=Dresbachian Stage<br />
|category4=Sauk Sequence<br />
|category5=Knox Dolomite Megagroup<br />
|category6=Croixan Series<br />
|category7=Eau Claire Formation<br />
|tree1=Knox Dolomite Megagroup<br />
|tree2=Eau Claire Formation<br />
|tree3=Elmhurst Sandstone Member<br />
|tree21=Paleozoic Erathem<br />
|tree22=Cambrian System<br />
|tree23=Croixan Series<br />
|tree24=Dresbachian Stage<br />
|tree31=Sauk 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 />
T. C. Buschbach<br />
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==Name==<br />
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===Original description===<br />
The Elmhurst Sandstone Member of the Eau Claire Formation (Buschbach, 1964, p. 32).<br />
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===Derivation===<br />
Named for Elmhurst, Du Page 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 Elmhurst Sandstone Member is located a half mile west of Elmhurst, Du Page County, at a depth of 1640-1759 feet in a boring (Wander Co. No. 11, SE NW NE 10, 39N-11E) (sample set 15,336).<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 />
The Elmhurst Sandstone Member is the basal member of the Eau Claire Formation.<br />
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==Extent and thickness==<br />
The Elmhurst Member is widely distributed in the northern half of Illinois and is 10-200 feet thick.<br />
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==Lithology==<br />
Most of the Elmhurst is fine- to medium-grained, fossiliferous, gray sandstone that contains various amounts of interbedded gray shale. The basal part contains the sooty zone.<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 />
BUSCHBACH, T. C., 1964, Cambrian and Ordovician strata of northeastern Illinois: Illinois State Geological Survey Report of Investigations 218, 90 p.<br />
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{{Codes<br />
|membercode=8800<br />
|geo_unit=--<br />
}}</div>Jennifer.Obrad