Fults Member
Lithostratigraphy: Mammoth Cave Limestone Megagroup >>Salem Limestone >>Fults Member
Chronostratigraphy: Paleozoic Erathem >>Mississippian Subsystem >>Valmeyeran Series
Allostratigraphy: Kaskaskia 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(s)
Elwood Atherton, Charles Collinson, and Jerry A. Lineback
Name
Original description
The Fults Member of the Salem Limestone (Baxter, 1960a, p. 22-24).
Derivation
Named for Fults, Monroe County.
Other names
History/background
Type section
Type location
The type section of the Fults Member is in the bluffs three-fourths of a mile northwest of the town of Fults (SE NE 20, 4S-10W), where the member is 29.4 feet thick.
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
Extent and thickness
The Fults Member is 25-34 feet thick in the outcrop area in Monroe and St. Clair Counties.
Lithology
The Fults Member consists largely of thin- to medium-bedded, fine-grained, silty, cherty, more or less dolomitic limestone, but it contains beds of medium-grained limestone composed of fragmented fossils.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Globoendothyra baileyi and Eoendothyranopsis spiroides are common.
Age and correlation
Environments of deposition
Economic importance
Remarks
References
BAXTER, J. W., 1960a, Salem Limestone in southwestern Illinois: Illinois State Geological Survey Circular 284, 32p.
ISGS Codes
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