Usage:
Laketown Dolomite (ID*,NV*,UT*,WY*)
Laketown Dolostone (ID*,NV*,UT*)
Laketown Formation (MT)
Laketown Dolomite is preferred usage of the NV Geol. Survey.
Subunits:
(alphabetical): Bell Hill Member (UT*), Decathon Member (NV,UT), Gettel Member (UT), Harrisite Member (UT*), High Lake Member (UT), Jack Valley Member (NV,UT), Lost Sheep Member (UT*), Portage Canyon Member (NV,UT), Thursday Member (UT). Tony Grove Lake Member (NV, UT).
Geologic age:
Silurian (Llandovery to Ludlow?)*
Type section, locality, area and/or origin of name:
Named from exposures in Laketown Canyon, Rich Co., northeastern UT (US geologic names lexicons, USGS Bull. 896, 1200).
AAPG geologic province:
Great Basin province*
Green River basin*
Idaho Mountains province*
Snake River basin*
Wasatch uplift*
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 ([ ]).