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Map showing publication footprint
  • Usage in publication:
    • Fox Ford bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sandstone
    • Conglomerate
  • AAPG geologic province:
    • Llano uplift
Publication:

Drake, N.F., 1893, Report on the Colorado coal field of Texas, IN Fourth annual report of the Geological Survey of Texas, 1892: Geological Survey of Texas Annual Report, v. 4, p. 357-444. [Available online from the University of Texas-Austin library: http://www.lib.utexas.edu/books/dumble/]


Summary:

Pg. 374, 378. Fox Ford bed in Strawn division. Sandstone, about 500 feet thick. Member of Strawn division [Strawn is 2nd from base of 5 Carboniferous divisions of Cummins, 1891]. Overlies Bed No. 8 (250 to 300 feet of clay interstratified with sandstone at base) and underlies Horse Creek clays and shales. Age is Pennsylvanian.
[Named from Fox ford on Colorado River, Colorado River region, in central TX mineral region.]

Source: US geologic names lexicon (USGS Bull. 896, p. 767).


Map showing publication footprint
  • Usage in publication:
    • Fox Ford bed
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Fort Worth syncline
Publication:

Zimmerman, D.A., and Glover, G.D., 1956, Summary of geological nomenclature, Morrow, Bend, and Strawn series, Fort Worth basin area [Texas]: Society of Economic Paleontologists and Mineralogists, Permian Basin Section, Field Trip Guidebook, Spring meeting and field symposium, May 11-12, 1956, p. 70-78.


Summary:

Pg. 76. Fox Ford bed in Strawn series. Sandstone about 500 feet thick. Underlies Horse Creek clays and shales; overlies bed No. 8. [Age is Pennsylvanian; age of Strawn not discussed.]
[Report area in Parker County, central Texas.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1410-1411); supplemental information from GNU records (USGS DDS-6; Denver GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Fox Ford bed
  • Modifications:
    • Not used
  • AAPG geologic province:
    • Fort Worth syncline
    • Llano uplift
Publication:

Eargle, D.H., 1960, Stratigraphy of Pennsylvanian and Lower Permian rocks in Brown and Coleman Counties, Texas, IN Stafford, P.T., and others, Pennsylvanian and Lower Permian rocks of parts of west and central Texas: U.S. Geological Survey Professional Paper, 315-D, p. D55-D77. [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp315D]


Summary:

Pg. 58, pl. 27. [†Fox Ford bed of Strawn formation not used by the USGS; a local term considered obsolete. See also entry under Strawn.] Drake (1893) separated rocks of Strawn group [division] into 20 units of alternating sandstone and shale beds. He gave local names to these units, or "beds" as he termed them, and numbered them from bottom to top, 4 to 23. Only Drake's name for upper unit, the Ricker, is in common use today, and that name has been restricted to the base of Drake's Ricker bed.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1410-1411).


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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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