- Usage in publication:
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- Harrisburg coal member
- Modifications:
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- Revised
- AAPG geologic province:
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- Illinois basin
Summary:
Pg. 34, 36, 47 (table 1), pl. 1. Harrisburg coal member of Carbondale formation of Kewanee group (new). Assigned member status in Carbondale formation. In southern area, occurs above Hanover limestone member and below St. David limestone member; in eastern area, occurs above Summum coal (No. 4) member and below Herrin (No. 6) coal member. Coal named by Shaw and Savage (1912 [1913], USGS Geol. Atlas of the US, Murphysboro-Herrin folio, no. 185). Age is Pennsylvanian. Presentation of new rock-stratigraphic classification of Pennsylvanian in Illinois.
Type locality: in coal mines in vicinity of Harrisburg, Saline Co., IL.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1685).
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 ([ ]).