- Usage in publication:
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- Harwood Member
- Modifications:
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- Original reference
Summary:
Pg. 8. Harwood Member of Poplar River Formation. Consists mostly of gray, gray-brown clay with mealy texture; 1.8 m thick at type section. Unconformably overlies Brenna Formation; conformably underlies West Fargo Member of Poplar River or unconformably underlies Sherack Formation. Deposits represent fluvial-overbank. Age is Pleistocene (Wisconsinan).
Type section (subsurface): North Dakota Geological Survey test hole, Boring T-18, SW/4 SW/4 SW/4 sec. 11, T. 147 N., R. 49 W., Traill Co., ND. Named from village of Harwood, Cass Co., east-central ND.
Source: US geologic names lexicon (USGS Bull. 1564, p. 72-73).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).