Chart no. 6 (column 29, northern Illinois, collated by H.R. Wanless and J.M. Weller). Hicks limestone [unranked]. Shown on Pennsylvanian correlation chart as limestone in McLeansboro formation. Occurs below Hall limestone and above Turner limestone, [both new, unranked units in Mcleansboro formation]. Age is [Late Pennsylvanian]; Missourian; Stephanian.
[Shown on chart correlative with Buffkin limestone (unranked) in Wabash formation in Indiana (col. 25), Carthage limestone in western Kentucky (col. 26), Macoupin limestone (unranked) in McLeansboro formation in central Illinois (col. 28), and Westerville limestone of Kansas City group in Iowa, Missouri, Kansas and Nebraska (cols. 31-33, collated by R.C. Moore).]
Source: US geologic names lexicon (USGS Bull. 1200, p. 1753).
Pg. 11, pl. 1. Hicks limestone of McLeansboro group. Shown on correlation chart as limestone in McLeansboro group. Included in Hicks cyclothem. Age is Pennsylvanian. Type locality given.
Type locality: In NW/4 SW/4 sec. 33, T. 16 N., R. 11 E., Bureau Co., northern IL.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1753).
Pg. 38. Hicks limestone. Discontinued. Name Hicks preempted. No new name proposed.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1753).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).