View source for Bankston Fork Limestone Member

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{{Tree
|category1=Paleozoic Erathem
|category2=Pennsylvanian Subsystem
|category3=Absaroka Sequence
|category4=Kewanee Group
|category5=Desmoinesian Series
|category6=Carbondale Formation
|category7=Limestone
|tree1=Kewanee Group
|tree2=Carbondale Formation
|tree3=Bankston Fork Limestone Member
|tree21=Paleozoic Erathem
|tree22=Pennsylvanian Subsystem
|tree23=Desmoinesian Series
|tree31=Absaroka Sequence
}}
==Primary 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&#40;s&#41;==
M. E. Hopkins and J. A. Simon

==Name==

===Original description===
The Bankston Fork Limestone Member of the Carbondale Formation (Cady, 1926, p. 261-262).

===Derivation===
Named for Bankston Creek in Saline County.

===Other names===

===History&#47;background===

==Type section==

===Type location===
The type section consists of outcrops along the south side of Bankston Creek (NE NW 19, 9S-5E).

===Type author&#40;s&#41;===

===Type status===

==Reference section==

===Reference location===

===Reference author&#40;s&#41;===

===Reference status===

==Stratigraphic relationships==

==Extent and thickness==
It occurs in southwestern, central, eastern, and southeastern Illinois, where it is commonly several feet thick but seldom over 6 feet. It does not occur west of the Illinois River or in northern Illinois. It commonly is not present over the thick portions of the Anvil Rock Sandstone.

==Lithology==
The Bankston Fork is a fine-grained, argillaceous, thick-bedded limestone that is dolomitic in places (fig. P-3B). It is commonly nodular in the upper and lower portions and is generally divided into two benches by a greenish gray shale several inches thick.
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==Core&#40;s&#41;==

==Photograph&#40;s&#41;==

==Contacts==

==Well log characteristics==

==Fossils==
It is sparsely fossiliferous, its open-marine fauna dominated by brachiopods, fusulinids, and a few crinoids.

==Age and correlation==
The Bankston Fork correlates with the Universal Limestone Member of Indiana and is present in parts of western Kentucky, where it locally is as much as 8 feet thick.

==Environments of deposition==

==Economic importance==

==Remarks==

==References==
CADY, G. H., 1926, Areal geology of Saline County: Illinois Academy of Science Transactions, v. 19, p. 250-272.

{{Codes
|membercode=2530
|geo_unit=--
}}