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Map showing publication footprint
  • Usage in publication:
    • Arkansas marls*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sand
    • Clay
    • Marl
  • AAPG geologic province:
    • Denver basin
Publication:

Hayden, F.V., 1869, [Third annual] Preliminary field report of the United States Geological Survey of Colorado and New Mexico: U.S. Geological and Geographical Survey of the Territories (Hayden), Annual Report, [3], 155 p., Reprinted 1873, p. 103-251


Summary:

Pg. 75-91. Arkansas marls. In valley of Arkansas north of Poncha Pass, [Freemont County], central southern Colorado, is a fine development of light-colored marls, doubtless of same age as Santa Fe marls, which I have designated by name of Arkansas marls. They occupy entire valley of the Arkansas, which is about 40 miles long and 5 to 10 miles wide. Assigned to Pliocene.
[GNC remark (ca. 1936, US geologic names lexicon, USGS Bull. 896, p. 72): †Arkansas marls abandoned. Same as Santa Fe formation, of late Miocene and Pliocene age.]

Source: US geologic names lexicon (USGS Bull. 896, p. 72).


Map showing publication footprint
  • Usage in publication:
    • Arkansas marl
  • Modifications:
    • Not used
Publication:

Van Alstine, R.E., 1969, Geology and mineral deposits of the Poncha Springs NE quadrangle, Chaffee County, Colorado: U.S. Geological Survey Professional Paper, 626, 52 p., (incl. geologic map, scale 1:24,000)


Summary:

Rocks in Eagle basin assigned to Arkansas marl by Hayden (1869) are reassigned to the Miocene and Pliocene Dry Union Formation in this report.

Source: GNU records (USGS DDS-6; Denver GNULEX).


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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