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Geologic Unit: Greenup
Map showing publication footprint
  • Usage in publication:
    • Greenup cyclothem
  • Modifications:
    • Original reference
  • AAPG geologic province:
    • Illinois basin
Publication:

Newton, W.A., and Weller, J.M., 1937, Stratigraphic studies of Pennsylvanian outcrops in part of southern Illinois: Illinois Geological Survey Report of Investigations, no. 45, 31 p.


Summary:

Pg. 9, 26-27. Greenup cyclothem in McLeansboro Group. Present in southeastern Illinois. Lies above Newton cyclothem (new) and below Gila cyclothem (new). Includes Greenup limestone. Age is Pennsylvanian.
Type locality: just north of town of Greenup, Cumberland Co., southeastern IL.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1607).


Map showing publication footprint
  • Usage in publication:
    • Greenup cyclothem
  • Modifications:
    • Revised
  • 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. 52 (table 2), pl. 1. Greenup cyclothem in Mattoon formation (new) of Mcleansboro Group. Above Bogota cyclothem and below Woodbury 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. 1607).


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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