- Usage in publication:
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- Hicks cyclothem
- Modifications:
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- Original reference
- AAPG geologic province:
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- Illinois basin
Summary:
Pg. 12, 16 (fig. 2). Hicks cyclothem. Pennsylvanian succession between the Gimlet and LaSalle cyclothems, exposed in upper Illinois valley, contains several prominent but thin limestones which are basis for recognition of incomplete cyclothems to which the names (ascending) Turner, Hicks, and Hall have been applied by H.B. Willman.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1752).
- Usage in publication:
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- Hicks cyclothem
- Modifications:
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- Principal reference
- Revised
- AAPG geologic province:
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- Illinois basin
Summary:
Pg. 11, pl. 1. Hicks cyclothem in McLeansboro group. Includes Hicks limestone. 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. 1752).
- Usage in publication:
-
- Hicks cyclothem
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Illinois basin
Summary:
Pg. 52 (table 2), pl. 1. Hicks cyclothem in Modesto formation (new) of McLeansboro group. Occurs above Trivoli cyclothem and below Hall cyclothem). Age is Pennsylvanian. Presentation of new rock-stratigraphic classification of Pennsylvanian strata in Illinois; cyclical classification is independent of rock-stratigraphic classification.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1752).
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 ([ ]).