Usage:
Falconer Formation (MN)
Falconer Formation of Coleharbor Group (ND)
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 84 to 123 ft, University of North Dakota-Grand Forks, Witmer Hall, Boring No. 3, in SE/4 SE/4 SE/4 sec. 5, T. 151 N., R. 50 W., Grand Forks 7.5-min quadrangle, Grand Forks Co., eastern ND (Harris and others, 1974, p. 19, fig. 7, 38-39).
Reference sections (subsurface), North Dakota State Water Commission (NDSWC) Testholes 2430, 2431, 2433, 2609, Grand Forks area, Grand Forks 7.5-min quadrangle, Grand Forks Co., eastern ND (Harris and others, 1974, p. 19, fig. 7, 40-46):
(1) depth-interval 74 to 118 ft, No. 2430, in NE/4 SE/4 SE/4 sec. 29, T. 152 N., R. 50 W.
(2) depth-interval 68 to 118 ft, No. 2431, in NW/4 NW/4 NW/4 sec. 22, T. 151 N., R. 50 W.
(3) depth-interval 76 to 124 ft, No. 2433, in SE/4 NE/4 SE/4 sec. 6, T. 151 N., R. 50 W.
(4) depth-interval 69 to 124 ft, No. 2609, in SE/4 SE/4 SE/4 sec. 36, T. 152 N., R. 51 W.
Named from Falconer Twp., Grand Forks area, Grand Forks 7.5-min quadrangle, Grand Forks Co., eastern ND (Harris and others, 1974).
AAPG geologic province:
Sioux uplift
Williston basin
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 ([ ]).