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Geologic Unit: Towle
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Map showing publication footprint
  • Usage in publication:
    • Towle shale member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale

Map showing publication footprint
  • Usage in publication:
    • Towle shale formation
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Forest City basin
Publication:

Condra, G.E., 1935, Geologic cross-section, Forest City, Missouri to south of Du Bois, Nebraska: Nebraska Geological Survey Paper, no. 8, 23 p., Issued late in 1935. See also USGS unpub. corr. charts of Pennsylvanian and Permian rocks of KS and NE, compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, Oct. 1936


Summary:

Pg. 9. Towle shale formation of Admire group. About 2 to 2.5 feet of gray shale at top, 10 to 11 feet of red shale in middle, and 1+/- foot of gray shale at base. Total thickness 14+/- feet. Underlies Aspinwall limestone formation and overlies Brownville limestone formation. Basal formation of Admire group. Age is considered Permian (lower part of Big Blue).

Source: US geologic names lexicon (USGS Bull. 896, p. 2173); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.


Map showing publication footprint
  • Usage in publication:
    • Towle shale
  • Modifications:
    • Age modified
Publication:

Moore, R.C., 1936, Stratigraphic classification of the Pennsylvanian rocks of Kansas: Kansas Geological Survey Bulletin, no. 22, 256 p., See also "Modern classifications of the Pennsylvanian rocks of eastern Kansas and southeastern Nebraska," compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, USGS unpub. corr. chart, Oct. 1936, sheet 2


Summary:

Transferred all beds above Brownville limestone to Permian. (See "Modern classifications of the Pennsylvanian rocks of eastern Kansas and southeastern Nebraska," compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, USGS unpub. corr. chart, Oct. 1936, sheet 2.)

Source: US geologic names lexicon (USGS Bull. 896, p. 2173); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.


Map showing publication footprint
  • Usage in publication:
    • Towle shale
  • Modifications:
    • Overview
Publication:

Wilmarth, M.G., 1936, [Selected Geologic Names Committee remarks (ca. 1935-1938) on Carboniferous and Permian rocks of the Midcontinent], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p.


Summary:

E.C. Reed (Asst. State Geol. Nebraska), 1936 (letter dated Oct. 16). Type locality of Towle shale is Towle farm, 2 mi south and 3 mi west of Falls City, in SW/4 sec. 20, T. 1 N., R. 16 E., Richardson County, southeastern Nebraska.

Source: US geologic names lexicon (USGS Bull. 896, p. 2173).


Map showing publication footprint
  • Usage in publication:
    • Towle shale member*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Cherokee basin
    • Forest City basin
Publication:

Moore, R.C., and Mudge, M.R., 1956, Reclassification of some Lower Permian and Upper Pennsylvanian strata in northern Midcontinent, IN Geological notes: American Association of Petroleum Geologists Bulletin, v. 40, no. 9, p. 2271-2278. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 2273, 2274 (fig. 1). Towle shale member of Onaga shale. Rank reduced to member status in Onaga shale. Locally contains Indian Cave channel sandstone bed. Underlies Aspinwall limestone member; overlies Brownville limestone member of Wood Siding formation. Age is Early Permian (Wolfcampian).

Source: US geologic names lexicon (USGS Bull. 1200, p. 3934-3935).


Map showing publication footprint
  • Usage in publication:
    • Towle Shale Member*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Chautauqua platform
    • Cherokee basin
    • Forest City basin
    • Nemaha anticline
Publication:

Boardman, D.R., II, Wardlaw, B.R., and Nestell, M.K., 2009, Stratigraphy and conodont biostratigraphy of the uppermost Carboniferous and Lower Permian from the North American Midcontinent: Kansas Geological Survey Bulletin, no. 255, 253 p.


Summary:

Towle Shale Member of Onaga Shale of Admire Group. Overlies Brownville Limestone Member of Wood Siding Formation and underlies Aspinwall Limestone Member of Onaga. Consists of shale, mudstone (paleosols), and some limestone; locally includes fossiliferous shale or mudstone at base. Contains brachiopods and ADETOGNATHUS conodonts. Interpreted to be nearshore marine deposits. Age is Late Pennsylvanian (late Gzhelian; STREPTOGNATHODUS BELLUS conodont zone), based on stratigraphic position.
Described from measured sections in Chautauqua, Greenwood, Pottawatomie, and Wabaunsee Counties, eastern Kansas, and Osage County, northern Oklahoma. (Locs. 1, 2, 3, A2, A12, A15, A20.)

Source: Publication.


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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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).