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National Geologic Map Database

Geologic Unit: Laketown

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:

Early to early Late(?) Silurian*


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).