Pg. 22. Blue Rapids shale member of Garrison formation of Council Grove group. Blue Rapids shale is new name for basal part of Speiser shale as originally defined [Condra, 1927, Nebraska Geol. Survey Bull., 2nd ser., no. 1]. It includes the beds between Crouse limestone below and Funston limestone above. Thickness in Nebraska 23 feet or more, decreasing southward to about 16 feet at Oklahoma line. From Junction City, Kansas, southward to Oklahoma, the lower part of the Blue Rapids is a slabby sandy shale. Fossils (gastropods, ostracodes). Age is Permian (Big Blue).
Type locality: in cuts of Highway 77, about 1.5 mi north of Blue Rapids, [Marshall Co.], eastern KS. Named from town of Blue Rapids, Marshall Co., eastern KS.

Source: US geologic names lexicon (USGS Bull. 896, p. 221-222); GNC KS-NE Permian Corr. Chart, Oct. 1936; supplemental information from GNU records (USGS DDS-6; Denver GNULEX).

Pg. 4, 6-7. Blue Rapids shale. Middle member of Bigelow limestone formation of Council Grove group. Shale with minor mudstone and sandy lime. Thickness 22+ feet. Overlies Crouse limestone member and underlies Funston limestone member. Age is Permian (Big Blue).

Source: Publication; US geologic names lexicon (USGS Bull. 896, Bigelow entry p. 183); GNC KS-NE Permian Corr. Chart, Oct. 1936.

Pg. 64-65. Condra (1935) employed term Bigelow limestone as comprising (ascending) Sabetha limestone (Crouse limestone), Blue Rapids shale, and Funston limestone. The Bigelow thus included strata between the Easly Creek shale and Speiser shale. To be consistent with classification applied to strata above and below them, these beds should be divided into formations.] Proposed that Bigelow be dropped as stratigraphic term and that Crouse limestone, Blue Rapids shale, and Funston limestone be recognized as formations. [In Council Grove group. Age is Permian (Wolfcamp).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 399).

Pg. 46. Blue Rapids shale. Gray, green, and red shale; contains local limestones and locally a coal bed in Geary County, Kansas. Thickness 15 to 30 feet. Underlies Funston limestone; overlies Crouse limestone. Age is Early Permian (Wolfcamp).

Source: US geologic names lexicon (USGS Bull. 1200, p. 399).

(Paleozoic Era; Permian System by H.G. O'Connor, D.E. Zeller, C.K. Bayne, J.M Jewett, and Ada Swineford, p. 47.) Blue Rapids Shale of Council Grove Group. In Kansas, a gray, green, and red shale locally containing some limestone. A thin coal bed occurs in the upper part in Geary County. Thickness about 15 to 30 feet. Overlies Crouse Limestone and underlies Funston Limestone, both of Council Grove Group. Age is Early Permian; Gearyan Provincial Stage (of H.G. O'Connor, 1963, AAPG Bull., v. 47, p. 1873-1877).

Source: Publication.