Usage:
Lone Formation (AK*)
Geologic age:
Neoproterozoic(?)*
Type section, locality, area and/or origin of name:
Type section: directly south of type section of Big River Dolostone (new), along north-trending ridge 3.0 km west of Lone Mountain, in NW/4 NE/4 SE/4 sec. 14, T. 28 N., R. 30 W., McGrath C-4 quadrangle (scale 1:63,360), Alaska (Babcock and others, 1994).
Reference section along northwest-trending ridge in SW/4 NE/4 NW/4 sec. 23, T. 28 N., R. 30 W., McGrath C-4 quadrangle (scale 1:63,360), Alaska (Babcock and others, 1994).
AAPG geologic province:
Alaska West-Central region*
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 ([ ]).