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National Geologic Map Database

Geologic Unit: H T Butte

Usage:

H T Butte lignite bed (informal) (ND)

Informal. The rank or lithologic term should not be capitalized.


Geologic age:

Tertiary
Paleocene, late
Tiffanian


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

Not designated. Apparently named from H T Butte, a conspicuous landmark in T. 134 N., R. 102 W., Slope Co., ND, that rises about 500 ft above surrounding plain to altitude of 3,414 ft (Hares, 1928).


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 ([ ]).