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Geologic Unit: Jamestown
Map showing publication footprint
  • Usage in publication:
    • Jamestown coal member
  • Modifications:
    • Principal reference
  • AAPG geologic province:
    • Illinois basin
Publication:

Kosanke, R.M., Simon, J.A., Wanless, H.R., and Willman, H.B., 1960, Classification of the Pennsylvanian strata of Illinois: Illinois Geological Survey Report of Investigations, no. 214, 84 p.


Summary:

Pg. 34, 48 (table 1), pl. 1. Jamestown coal member of Carbondale formation of Kewanee group (new). Assigned member status in Carbondale formation. Occurs above Brereton limestone member and below Conant limestone member (new). Coal named by Bell and others (1931, Illinois Geol. Survey Illinois Petrol. Press Bull., no. 19). Age is Pennsylvanian. Presentation of new rock-stratigraphic classification of Pennsylvanian strata in Illinois.
Type locality: in NW/4 NE/4 sec. 34, T. 5 S., R. 4 W., in vicinity of Jamestown, Perry Co., southern IL.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1909-1910).


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 ([ ]).

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