U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Nesson

Usage:

Nesson Formation (MT*,ND*,SD*?)


Subunits:

(alphabetical): Kline Member (MT*,ND*), Picard Shale Member (MT*,ND*), Poe Evaporite Member (MT*,ND*).


Geologic age:

Jurassic, Early(?)*
Jurassic, Middle*


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

Type section (subsurface): depth-interval 5,730 to 5,990 ft, Amerada No. 1 Clarence Iverson well, in center SW/4 SW/4 sec. 6, T. 155 N., R. 95 W., Williams 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 ([ ]).