Mecca Quarry Shale Member: Difference between revisions
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Revision as of 17:09, 26 January 2017
Lithostratigraphy: Kewanee Group >>Carbondale Formation >>Mecca Quarry Shale Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian Series
Allostratigraphy: 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(s)
M. E. Hopkins and J. A. Simon
Name
Original description
The Mecca Quarry Shale Member of the Carbondale Formation (Zangerl and Richardson, 1963, p. 25).
Derivation
Named for Mecca, Parke County, Indiana.
Other names
History/background
Type section
Type location
The type section is in a small quarry that was excavated for study of the shale (SW NE 29, 15N-8W).
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
It lies immediately above the Colchester (No. 2) Coal in much of southern and eastern Illinois and above the Francis Creek Shale in much of western and northern Illinois. Where the Francis Creek is more than about 30 feet thick, the Mecca Quarry is absent. The Mecca Quarry is generally overlain by the Oak Grove Limestone.
Extent and thickness
Locally it is as much as 4 feet thick but more normally is 1-2 feet thick. The unit is very extensive in Illinois and adjacent states.
Lithology
The Mecca Quarry Shale is a hard, black fissile shale. Large limestone concretions and small phosphatic lenses and nodules are common locally (fig. P-3C).
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
It contains a varied marine fauna dominated by nektonic and planktonic forms.
Age and correlation
Environments of deposition
Economic importance
Remarks
References
ZANGERL, RAINER, and E. S. RICHARDSON, JR., 1963, Paleoecological history of two Pennsylvanian black shales: Fieldiana--Geological Memoir 4, 352 p.
ISGS Codes
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