Palzo Sandstone Member: Difference between revisions
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|tree22=Pennsylvanian Subsystem | |tree22=Pennsylvanian Subsystem |
Revision as of 17:46, 5 February 2021
Lithostratigraphy: Carbondale Formation >>Palzo Sandstone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian Series
Allostratigraphy: Absaroka Sequence
Primary source
Nelson, W.J., 2020, Pennsylvanian Subsystem in Illinois: Illinois State Geological Survey Bulletin (in press).
Edited and figures drafted by Jennifer M. Obrad.
Contributing author(s)
W.J. Nelson
Name
Original description
This name was used first in passing by Cady (1942, p. 9) and in a footnote by Weller et al. (1942).
Derivation
The Palzo Sandstone was named for an unincorporated community in Williamson County, southern Illinois.
Other names
None.
Type section
Type location
Wanless (1956) listed, but did not describe, the type section as located near the village of Palzo (SE¼ sec. 16, T 10 S, R 4 E).
Type author(s)
Wanless (1956).
Type status
Unknown.
Reference section
None.
Stratigraphic relationships
Willman et al. (1975) positioned the Palzo Sandstone beneath the Colchester Coal and overlying the Davis, Dekoven, and Seelyville Coals. These authors stated that the Palzo is the same as the Isabel and Sebree Sandstones. However, the Isabel lies below the Abingdon Coal and thus is older than the Palzo. In this report, the Palzo Sandstone is recognized as being identical to the Coxville Sandstone. Because the name Coxville has priority, the name Palzo Sandstone is hereby abandoned.
References
- Cady, G.H., 1942, Analyses of Illinois coals: U.S. Bureau of Mines, Technical Paper 641, 245 p.
- Wanless, H.R., 1956, Classification of the Pennsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey, Circular 217, 14 p.
- Weller, J.M., H.R. Wanless, L.M. Cline, and D.G. Stookey, 1942, Interbasin Pennsylvanian correlations, Illinois and Iowa: American Association of Petroleum Geologists Bulletin, v. 26, p. 1585–1593.
- Willman, H.B., E. Atherton, T.C. Buschbach, C. Collinson, J.C. Frye, M.E. Hopkins, J.A. Lineback, and J.A. Simon, 1975, Handbook of Illinois stratigraphy: Illinois State Geological Survey, Bulletin 95, 261 p.
ISGS Codes
Stratigraphic Code | Geo Unit Designation |
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