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National Geologic Map Database
Geologic Unit: Detonti
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Map showing publication footprint
  • Usage in publication:
    • Detonti sand*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Clay
    • Sand
    • Lignite
  • AAPG geologic province:
    • Ouachita folded belt
Publication:

Gordon, Mackenzie, Jr., Tracey, J.I., Jr., and Ellis, M.W., 1958, Geology of the Arkansas bauxite region: U.S. Geological Survey Professional Paper, 299, 268 p. [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp299]


Summary:

Pg. 11 (fig. 4), 55-58, pls. Detonti sand of Wilcox group. Homogeneous sand unit containing some interbedded gray clay lenses and a prominent lignite bed at base. Best known from drillholes; as interpreted from logs thickness ranges from 207 to 412 feet. Unconformably overlies Saline formation (new); covered at many localities by deposits of gravel of late Tertiary age. Age is Eocene.
Type section: on east bank of first prominent gully west of Detonti on Detonti-Tull Road near center of NW/4 NW/4 NW/4 sec. 4, T. 3 S., R. 14 W., Saline Co., [Tull 7.5-min quadrangle], central AR. Named from settlement of Detonti on Missouri Pacific RR. Crops out in irregular northwestward-trending belt up to 3 mi wide and is probably continuous across bauxite region. Cut off at northeast by overlap of sediments higher in section and by Quaternary alluvial sediments of Arkansas River flood plain.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1100).


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 ([ ]).