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National Geologic Map Database

Geologic Unit: Lehman

Usage:

Lehman Formation of Pogonip Group (NV,UT)
Lehman Limestone of Pogonip Group (NV*,UT*)


Geologic age:

Middle Ordovician (Whiterockian; Arenig to Llanvirn)*


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

Ibex section, in SE/4 sec. 24, T. 22 S., R. 15 W., Millard Co., UT. Named from exposures near Lehman Caves in Snake River Range, White Pine Co., NV (Hintze, 1951).


AAPG geologic province:

Great Basin province*


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 ([ ]).