H. B. Willman and John C. Frye
The Levings Member of the McNairy Formation (Pryor and Ross, 1962, p. 19) is named for Levings, Pulaski County.
Levings is 1.5 miles northeast of the type section along a creek southwest of U.S. Dam 53 (NW SW 18, 15S-2E).
Extent and Thickness
The Levings occurs in the middle part of the McNairy Formation, is 0-70 feet thick, and is generally present throughout the northern part of the Mississippi Embayment.
The Levings Member is largely lignitic silt and clay with thin beds of lignite.
PRYOR, W. A., and C. A. ROSS, 1962, Geology of the Illinois parts of the Cairo, La Center, and Thebes Quadrangles: Illinois State Geological Survey Circular 332, 39 p.
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