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Lithostratigraphy
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Chronostratigraphy
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Primary source[edit | edit source]

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.

Contributing author(s)[edit | edit source]

Elwood Atherton, Charles Collinson, and Jerry A. Lineback

Name[edit | edit source]

Original description[edit | edit source]

Vienna Limestone (S. Weller, 1920, p. 396-398).

Derivation[edit | edit source]

Named for Vienna, Johnson County.

Other names[edit | edit source]

History/background[edit | edit source]

Type section[edit | edit source]

Type location[edit | edit source]

The type section of the Vienna Limestone is in an old quarry west of the town of Vienna (NE SW NW 5, 13S-3E), where the formation is 14 feet thick.

Type author(s)[edit | edit source]

Type status[edit | edit source]

Reference section[edit | edit source]

Reference location[edit | edit source]

Reference author(s)[edit | edit source]

Reference status[edit | edit source]

Stratigraphic relationships[edit | edit source]

Extent and thickness[edit | edit source]

It is a thin limestone, rarely more than about 8 feet thick and commonly only 3 or 4 feet (fig. M-44). However, in extreme southern Illinois the limestone thickens rapidly to 30 feet (fig. M-1A). Until recently, the calcareous shale locally present above and below the limestone bed was assigned to the Vienna (Swann, 1963). <center> {| class="wikitable" style="text-align: center;" |- |<gallery caption="" widths=250px heights=250px perrow=4> Figure_M-1A.jpg|{{file:Figure_M-1A.jpg}} Figure_M-44.jpg|{{file:Figure_M-44.jpg}} </gallery> |} </center>

Lithology[edit | edit source]

The limestone is mainly dark brownish gray, but some is brown or dark gray. It is generally very fossiliferous, with crinoid fragments predominating. It contains dark chocolate-brown chert nodules in the outcrop, but chert is rare in subsurface. Locally some beds are sandy. In places thin beds and partings of shale are interbedded with the limestone.

Core(s)[edit | edit source]

Photograph(s)[edit | edit source]

Contacts[edit | edit source]

Well log characteristics[edit | edit source]

Fossils[edit | edit source]

The fauna includes the bryozoan ''Prismopora serrulata'', which is also abundant in the Glen Dean, and the pelecypod ''Sulcatopinna missouriensis'', which is abundant in the Menard.

Age and correlation[edit | edit source]

Environments of deposition[edit | edit source]

Economic importance[edit | edit source]

Remarks[edit | edit source]

Reference(s)[edit | edit source]

place a <pre><br></pre>at the end of a line to get a line return SWANN, D. H., 1963, Classification of Genevievian and Chesterian (Late Mississippian) rocks of Illinois: Illinois State Geological Survey Report of Investigations 216, 91 p.<br> WELLER, STUART, 1920, Chester Series in Illinois: Journal of Geology, v. 28, p. 281-303, 395-416.

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