Pg. 11. Argusville Formation. Gray clay. Lacustrine, unbedded, with marbled appearance; contains balls of silt and pebble-loam. Thickness 5.5 m. Overlies pebble-loam; conformably underlies Brenna Formation or unconformably underlies Sherack Formation; grades laterally into Huot Formation. Age is Pleistocene (Wisconsinan).
Type section: Boring 2, North Dakota State Highway Dept. Structure I-29-89, Rose Coulee Bridge, in SW/4 SW/4 SW/4 sec. 26, T. 139 N., R. 49 W., Cass Co., ND. Named from village of Argusville, east-central ND.
Source: US geologic names lexicon (USGS Bull. 1564, p. 5).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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