Pg. 71; Illinois Bull., no. 95, p. 226, 1975. Batavia Member of Henry Formation. Upland unit of outwash sand, gravel, and silt, largely deposited along fronts of many Wisconsinan moraines. Thickness up to 30 feet. Overlies Wedron Formation or older deposits and commonly underlies Richland Loess. Age is Pleistocene (Wisconsinan Age; Atltonian Subage).
Type section: in gravel pit 8 mi (12.8 km) north of Batavia, in SW/4 sec. 1, T. 40 N., R. 8 E., Kane Co., northeastern IL. Named from village of Batavia, Kane Co., northeastern IL.
Source: Publication; Hdbk Illinois stratigraphy (Illinois Geol. Survey Bull. 95, p. 226); US geologic names lexicon (USGS Bull. 1520, p. 19).
Pg. 16, 18, 56-57. Batavia facies (informal) in Henry Formation of Mason Group. The lithogenetic-defined Batavia Member of Willman and Frye is retained as an informal sedimentary facies useful in understanding glacial history and in mapping glacial deposits. [Age is considered Pleistocene (Wisconsinan Age; Woodfordian Subage), based on age of Henry Formation.]
Source: Publication.
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