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- Usage in publication:
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- Brown County bed
- Modifications:
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- Original reference
- Dominant lithology:
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- Marl
- AAPG geologic province:
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- Salina basin
Summary:
Pg. 137. Brown County bed of Valentine formation of Ogallala group. Name applied to a 2-foot bed of diatomaceous marl, from which arboreous flora was collected and described by Chaney and Elias, 1936 [Late Tertiary floras from the High Plains, Carnegie Inst. Washington Pub., no. 476]. Is at a slightly lower horizon than Niobrara River channel sand of the Valentine. Age is Pliocene.
[Notable exposures in Brown Co., northwestern NE.]
Source: US geologic names lexicon (USGS Bull. 1200, p. 495, Valentine entry p. 4042-4043).
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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).