Pg. 4 (table 1); App., p. A10-13 to A10-15. Chilton Member of Kewaunee Formation. Follows the informal usage of D.M. Mickelson (McCartney and Mickelson, 1982, GSA Bull., v. 93, p. 297-302). Consists of reddish-brown silt, clay, and sand till. Thickness 1 to 3 m. Distinctly overlies Branch River Member (new) of Kewaunee Formation or Horicon Formation (new). Abruptly underlies Glenmore Member (new) of the Kewaunee or lies at the surface. Occurs on east side of Green Bay Lobe in Wisconsin. Contact with equivalent Kirby Lake Member (new) of the Kewaunee, on west side of Green Bay Lobe, is an arbitrarily drawn vertical cutoff at the Fox River. Is also equivalent to Haven Member (new) and Valders Member of the Kewaunee in the Lake Michigan Lobe. Age is Pleistocene (late Wisconsinan).
Type section (=Glenmore Member type section): DePere site, north-facing exposure in gravel pit about 100 m northwest of large radio tower, north of County Trunk Highway X, near top of Silurian escarpment, in southeast corner of sec. 38, T. 23 N., R. 20 E., [approx. Lat. 44 deg. 24 min. 35 sec. N., Long. 88 deg. 00 min. 12 sec. W.], eastern edge DePere 7.5-min quadrangle, Brown Co., eastern WI.
Named from the city of Chilton, Chilton 7.5-min quadrangle, Calumet Co., eastern WI; name credited to David M. Mickelson.
Reference sections:
(1) Greenleaf quarry, on north side of WI Highway 96, 0.4 mi (0.7 km) east of Greenleaf, in SE/4 SW/4 sec. 4, T. 21 N., R. 20 E., [approx. Lat. 44 deg. 18 min. 48 sec. N., Long. 88 deg. 04 min. 54 sec. W.], Greenleaf 7.5-min quadrangle, Brown Co., eastern WI (=Branch River Member type section); and
(2) Brillion quarry, in SW/4 SW/4 SW/4 sec. 24, T. 20 N., R. 20 E., [Lat. 44 deg. 11 min. 08 sec. N., Long. 88 deg. 03 min. 36 sec. W.], Brillion 7.5-min quadrangle, Calumet Co., eastern WI.
[Additional locality information from Syverson and others, 2011, Wisconsin lexicon of Pleistocene units, Wisconsin Geol. Nat. Hist. Survey Tech. Rpt., no. 1; supplemented from USGS historical topographic map collection TopoView and Wisconsin Highways www.wisconsinhighways.org, accessed on June 9, 2018.]

Source: Publication; US geologic names lexicon (USGS Bull. 1565, p. 62-63).

[Not synopsized to date. Lithology, thickness, distinguishing characteristics, contacts, sections, areal extent, age, correlations discussed.]
Pg. 4 (fig. 2), 7 (fig. 3), 8, 134-135. Chilton Member of Kewaunee Formation.

Source: NA