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National Geologic Map Database

Geologic Unit: Poe

Usage:

Poe Evaporite Member of Nesson Formation (MT*,ND*)
Poe Member of Piper Formation (ND)


Subunits:

Dunham Salt Bed (ND).


Geologic age:

Jurassic, Middle*
Bajocian*


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

Type section (subsurface): depth-interval 6,947 to 7,065 ft, Phillips-Skelly-Gulf No.1 Hoehn (Poe Unit) well, in center NE/4 SE/4 sec. 13, T. 152 N., R. 102 W., McKenzie Co., ND (Nordquist, 1955).


AAPG geologic province:

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