Pg. 85, 91, 97. Fontana shale. Basal member of Cherryvale formation of Kansas City group. Underlies Block limestone member of Cherryvale and overlies Winterset limestone member of Dennis limestone of Bronson group. Age is Late Pennsylvanian (Missouri age).
Source: US geologic names lexicon (USGS Bull. 896, p. 748); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.
Pg. 19, 36-37. Fontana shale of Kansas City group. Argillaceous or calcareous shale, greenish gray or buff, 5 to 25 feet thick, comprising basal formation of Kansas City group as restricted by R.C. Moore. Overlies Winterset member of Dennis limestone of Bronson group and underlies Block limestone of Kansas City group. Age is Late Pennsylvanian (Missouri age).
Type exposures near Fontana, in roadcuts at northeast corner sec. 11, T. 18 S., R. 23 E., and at middle of west side of NW/4 sec. 36, T. 18 S., R. 23 E., Miami Co., eastern KS. Named from Fontana.
Source: US geologic names lexicon (USGS Bull. 896, p. 748); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.
Fontana shale of Kansas City group. Stated that Newell is author of this name. Thickness 5 to 25 feet. Age is Late Pennsylvanian (Missouri age).
Source: US geologic names lexicon (USGS Bull. 896, p. 748); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.
Pg. 2031 (fig. 4). Fontana shale member of Cherryvale formation. Underlies Block limestone member; overlies Winterset limestone member of Dennis formation. Age is Late Pennsylvanian (Missourian). This is classification agreed upon by State Geological Surveys of Iowa, Kansas, Missouri, Nebraska, and Oklahoma.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1382-1383).
Fontana formation. Considered formation in Nebraska; overlies Dennis formation; underlies Sarpy formation (new). Thickness 15 feet at type locality; 5 feet at Kansas City, 2 to 7 feet in Missouri; 6.5 feet in Sarpy County, Nebraska, and near Wimberton, Iowa. Age is Late Pennsylvanian (Missourian).
Source: US geologic names lexicon (USGS Bull. 1200, p. 1382-1383).
Pg. 27, fig. 5. Fontana shale member of Cherryvale formation. Lowermost member of Cherryvale. Consists of gray calcareous silty micaceous shale. Thickness 10 feet. Underlies Block limestone member; overlies Winterset member of Dennis limestone. Age is Late Pennsylvanian (Missourian).
Source: US geologic names lexicon (USGS Bull. 1200, p. 1382-1383).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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