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Geologic Unit: Reager
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Map showing publication footprint
  • Usage in publication:
    • Reager ash bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Volcanic ash
  • AAPG geologic province:
    • Central Kansas uplift
Publication:

Carey, J.S., Frye, J.C., Plummer, Norman, and Swineford, Ada, 1952, Kansas volcanic ash resources: Kansas Geological Survey Bulletin, no. 96, pt. 1, p. 1-68.


Summary:

Pg. 9-13, 27. Reager ash bed of Ash Hollow member of Ogallala formation. Name applied to volcanic ash bed. Approximately 10 feet thick. Lies near middle of member and stratigraphically above Calvert ash bed (new) and stratigraphically below an unnamed ash bed. Age is Pliocene.
Type locality: in NW/4 NE/4 sec. 35, T. 2 S., R. 25 W., Norton Co., northwestern KS. Named from exposures 1 mi north of stop on Burlington Railroad in west-central part of county.

Source: US geologic names lexicon (USGS Bull. 1200, p. 3212).


Map showing publication footprint
  • Usage in publication:
    • Reager ash bed
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Central Kansas uplift
Publication:

Swineford, Ada, Frye, J.C., and Leonard, A. Byron, 1955, Petrography of the late Tertiary volcanic ash falls in the central Great Plains [Kansas-Nebraska]: Journal of Sedimentary Petrology, v. 25, no. 4, p. 243-261. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 244 (fig. 1), 254. Reager ash bed of Ash Hollow member of Ogallala formation. Listed in stratigraphic sequence as overlapping Dellvale ash bed (new) and underlying Reamsville ash bed (new). Present in northwestern Kansas. Age is Pliocene.
[GNC remark (ca. 2010): Ash Hollow Member later discarded by the Kansas Geol. Survey. See Ludvigson and others, 2009, Kansas Geol. Survey Bull., no. 256, pt. 2.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 3212).


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 ([ ]).