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Geologic Unit: Agathla
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Map showing publication footprint
  • Usage in publication:
    • Agathla shale
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Black Mesa basin
Publication:

Hager, Dorsey, 1924, Stratigraphy, northeast Arizona, southeast Utah: California Chamber of Mines and Oil, Mining and Oil Bulletin, v. 10, no. 2, p. 135-139, 167., See also Mining and Oil Bull., v. 10, no. 4, p. 383-385, 423-439


Summary:

Pg. 137; No. 4, p. 383-384, 423, 437. Agathla shale. 40 to 50 feet thick, underlies Agathla sandstone and overlies Kaibab limestone near Agathla Peak, northeastern Arizona [northern part of Navajo County]. Is local representative of Moencopie beds. Age is Early Triassic.

Source: US geologic names lexicon (USGS Bull. 896, p. 17).


Map showing publication footprint
  • Usage in publication:
    • Agathla shale
  • Modifications:
    • Not used
  • AAPG geologic province:
    • Black Mesa basin
Publication:

Baker, A.A., and Reeside, J.B., Jr., 1929, Correlation of the Permian of southern Utah, northern Arizona, northwestern New Mexico, and southwestern Colorado: American Association of Petroleum Geologists Bulletin, v. 13, no. 11, p. 1413-1448. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 1441, etc. Agathla shale. Agathla sandstone, Agathla shale, Kaibab limestone, Coconino sandstone, and underlying shale of Hager's 1924 report all belong to true Moenkopi formation.

Source: US geologic names lexicon (USGS Bull. 896, p. 17).


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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