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Geologic Unit: Altuda
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Map showing publication footprint
  • Usage in publication:
    • Altuda member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sand
    • Shale
  • AAPG geologic province:
    • Permian basin
Publication:

King, P.B., 1927, The Bissett formation, a new stratigraphic unit in the Permian of West Texas: American Journal of Science, 5th series, v. 14, no. 81, p. 212-221.


Summary:

Pg. 217. Altuda member of Vidrio formation. Middle member of Vidrio formation. Thin-bedded dolomites, characterized by considerable amounts of sandy and shaly material. Thickness 0 to 400 feet. Is separated from underlying Word formation by several hundred feet of very massive cliff-forming dolomites, making up lower part of Vidrio formation. To west these thin and gradually merge with Altuda member. Overlain by 1,000+/- feet of massive dolomites, which represent upper part of Vidrio formation and interfinger with lower part of overlying Gilliam formation. Age is Permian.
Named from exposures in vicinity of Altuda section house, Glass Mountains, Brewster Co., western TX.

Source: US geologic names lexicon (USGS Bull. 896, p. 41-42).


Map showing publication footprint
  • Usage in publication:
    • Altuda member*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Permian basin
Publication:

King, P.B., 1930, The geology of the Glass Mountains, Texas; Part 1, Descriptive geology: University of Texas Bulletin, no. 3038, 167 p., [Issued 1931]


Summary:

Pg. 75, 131, 134, 136, quarto. Treated Altuda member as a member of Capitan formation, and gave several detailed sections, in some of which he descirbed it as chiefly limestone with considerable siliceous shale, and in others as almost wholly dolomite, and gave thicknesses of 347, 477, and 734 feet. [See also 1930 (1931) entry under Capitan.]

Source: US geologic names lexicon (USGS Bull. 896, p. 41-42).


Map showing publication footprint
  • Usage in publication:
    • Altuda shaly member*
  • Modifications:
    • Areal extent
  • Dominant lithology:
    • Shale
    • Limestone
  • AAPG geologic province:
    • Permian basin
Publication:

King, P.B., 1934, Permian stratigraphy of Trans-Pecos Texas: Geological Society of America Bulletin, v. 45, no. 4, p. 697-798.


Summary:

Pg. 737. Changed name to Altuda shaly member of Capitan limestone, and also treated the Vidrio, Gilliam, and Tessey as members of Capitan limestone. Age is Permian.

Source: US geologic names lexicon (USGS Bull. 896, p. 41-42).


Map showing publication footprint
  • Usage in publication:
    • Altuda formation*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Permian basin
Publication:

King, P.B., 1942, Permian of West Texas and southeastern New Mexico: American Association of Petroleum Geologists Bulletin, v. 26, no. 4, p. 535-763. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 655. Altuda formation. Rank raised to formation. Recognized in western Texas. Age is Permian (Guadalupe).

Source: US geologic names lexicon (USGS Bull. 1200, p. 68).


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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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