Pg. 6, 33. Sturm limestone member of Andrew (Lawrence) shale. Light-colored bluish impure limestone that weathers into nodular pellet-like forms. Thickness 6+/- feet. Is in Andrew (Lawrence) shale. Lies 4 feet above Nehawka limestone and 6 feet below Oreapolis limestone. Age is Pennsylvanian. Report includes measured sections, cross sections.
Well exposed along North Branch of Weeping Water Creek between 2 and 4 mi north of Nehawka, with several good exposures near Sturm's Schoolhouse, in sec. 12, T. 10 N., R. 12 E., Cass Co., southeastern NE. It is in bed of Weeping Water Creek 2 mi west-northwest of Nehawka, where it is marked by a ford in the creek. Named from Sturm's Schoolhouse.
Source: US geologic names lexicon (USGS Bull. 896, p. 2079); GNC KS-NE Pennsylvanian Corr. Chart, sheet 1, Oct. 1936; supplemental information from GNU records (USGS DDS-6; Denver GNULEX).
Pg. 34. Stated that Nehawka limestone is Iatan limestone, but no mention is made of Sturm limestone, and the name appears to have been dropped from the list of geologic units of Nebraska. If Nehawka limestone is Iatan limestone, the Sturm limestone is a bed in Lawrence shale.
Source: US geologic names lexicon (USGS Bull. 896, p. 2079).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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