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Geologic Unit: Greenup
Map showing publication footprint
  • Usage in publication:
    • Greenup limestone
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
  • 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. 26-27. Greenup limestone. Included in Greenup cyclothem, McLeansboro group. Commonly light-gray limestone; fossiliferous. Thickness 2.5 to 3 feet. Overlies massive to thin-bedded sandstone that varies in thickness from few feet to more than 25 feet. Stratum above limestone may be thin-bedded to massive sandstone, or it may be poorly bedded slightly greenish shale which grades into basal member of Gila cyclothem above.
Type locality: near center W/2 NE/4 sec. 3, T. 9 N., R. 9 E., Cumberland Co., east-central IL.

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


Map showing publication footprint
  • Usage in publication:
    • Greenup limestone
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Illinois basin
Publication:

Weller, J.M., Henbest, L.G., and Dunbar, C.O., 1942, Stratigraphy of the fusuline-bearing beds of Illinois, IN Dunbar, C.O., and Henbest, L.G., Pennsylvanian Fusulinidae of Illinois: Illinois Geological Survey Bulletin, no. 67, p. 9-34., [1943]


Summary:

Pg. 19 (fig. 4), 28-29 [1943]. Greenup limestone of McLeansboro group. In Cumberland County, Illinois, consists of about 4 feet of light-gray earthy limestone that is nodular in places; thins southward and in Jasper County is represented by 1 foot of hard brownish-gray limestone or more or less inconspicuous zone of limestone nodules. No coal or underclay is present beneath the Greenup, and locally it is in direct contact with underlying sandstone. Age is Pennsylvanian.

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


Map showing publication footprint
  • Usage in publication:
    • Greenup limestone member
  • 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. 40, 41, 51 (table 1), 79, pl. 1. Greenup limestone member of Mattoon formation (new) of Mcleansboro Group. Assigned to member status in Mattoon formation. Occurs below Gila limestone member and above Bogota
limestone member. Thickness 3 feet at type outcrop. Age is Pennsylvanian. Presentation of new rock-stratigraphic classification of Pennsylvanian strata in Illinois.
Type locality: near center W/2 NE/4 sec. 3, T. 9 N., R. 9 E., Cumberland Co., east-central IL.

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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