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National Geologic Map Database

Geologic Unit: Falun

Usage:

Falun Member of Trade River Formation (WI)


Geologic age:

Quaternary (Pleistocene; Wisconsinan)


Type section, locality, area and/or origin of name:

Type section: btw. 280 and 283 m elevation in excavation (June 1992) on south side of WI State Highway 70, about 1.9 mi (3 km) east of Grantsburg, in NE/4 NW/4 NE/4 sec. 19, T. 38 N., R. 18 W., [approx. Lat. 45 deg. 46 min. 20 sec. N., Long. 92 deg. 38 min. 15 sec. W.], Grantsburg 7.5-min quadrangle (1983 ed.), Burnett Co., northwestern WI (Johnson, 2000; see also Syverson and others, 2011).
Named from community of Falun, Burnett Co., northwestern WI, [at type section] (Johnson, 2000; see also Syverson and others, 2011).
Reference sections (Johnson, 2000; see also Syverson and others, 2011):
(1) gravel pit on north side of M-Y Road, in NW/4 SW/4 SW/4 sec. 3, T. 37 N., R. 18 W., [approx. Lat. 45 deg. 43 min. 00 sec. N., Long. 92 deg. 35 min. 12 sec. W.], Trade Lake 7.5-min quadrangle, Burnett Co., northwestern WI; and
(2) excavation (June 1992) on farm property, in NE/4 SE/4 NW/4 sec. 10, T. 39 N., R. 20 W., [approx. Lat. 45 deg. 53 min. 04 sec. N., Long. 92 deg. 49 min. 37 sec. W.], Cedar Lake 7.5-min quadrangle, Pine Co., eastern MN.


AAPG geologic province:

Wisconsin arch


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 ([ ]).