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Geologic Unit: Dixon
Map showing publication footprint
  • Usage in publication:
    • Dixon formation
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
    • Sandstone
    • Limestone
  • AAPG geologic province:
    • Illinois basin
Publication:

Glenn, L.C., 1912, The geology of Webster County, IN Report of progress of the Survey, 1910-1911: Kentucky Geological Survey Report of Progress, 3rd series, p. 25-35.


Summary:

Pg. 26. Dixon formation. Chiefly calcareous shale, with 20-foot bed of limestone in upper half, Vanderburg sandstone (25 feet thick) in middle, and Dixon sandstone (10 to 60 feet thick) at base. Thickness about 340 feet in Webster County, western Kentucky. Unconformably overlies Lisman formation (Pennsylvanian), and unconformably underlies Lafayette formation (Pliocene). [Age is Pennsylvanian.]

Source: US geologic names lexicon (USGS Bull. 896, p. 615).


Map showing publication footprint
  • Usage in publication:
    • Dixon formation†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Illinois basin
Publication:

Wilmarth, M.G., 1925, [Selected Geologic Names Committee remarks (ca. 1900-1925) on Carboniferous rocks of the Illinois basin], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p.


Summary:

†Dixon formation abandoned. Replaced with Henshaw formation. Preoccupied in Silurian of Tennessee [Dixon clay of Foerste, 1903].
Named from Dixon, Webster Co., western KY.

Source: US geologic names lexicon (USGS Bull. 896, p. 615).


Map showing publication footprint
  • Usage in publication:
    • Dixon formation
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Illinois basin
Publication:

Wanless, H.R., 1939, Pennsylvanian correlations in the Eastern Interior and Appalachian coal fields: Geological Society of America Special Paper, 17, 130 p.


Summary:

Pg. 81. Dixon formation. Highest Pennsylvanian formation in western Kentucky. Includes beds younger than Lisman formation. Consists of (descending) Mount Gilead sandstone, Mount Gilead shale, Vanderburg sandstone, Bald Hill shale, and Dixon sandstone. [Age is Pennsylvanian.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1125-1126).


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 ([ ]).

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