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Map showing publication footprint
  • Usage in publication:
    • Holbrook sandstone
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • Black Mesa basin
Publication:

Hager, Dorsey, 1922, Oil possibilities of the Holbrook area in northeast Arizona: California Chamber of Mines and Oil, Mining and Oil Bulletin, v. 8, no. 2, p. 71-74, 81, 94., Also issued in private publication with same title, 1921; Mining and Oil Bull., v. 8, no. 1, p. 23-26, 33-34, and no. 3, p. 135-140, 1922


Summary:

(Nos. 1, 2, 3, Jan., Feb., Mar., p. 26, 33-34, 73, 81-94). Holbrook sandstone. Thinly cross-bedded sandstones with a few shale intercalations; the sandstone dark-gray on fresh fracture and contains black specks and mudstone pellets; all weathers dark red and changes laterally to massive cross-bedded sandstone. Top member of Moenkopie formation in Holbrook area. Exposed in form of cliffs just north of RR between Winslow and Holbrook, [Navajo County], eastern Arizona. Unconformably underlies Shinarump conglomerate and lies on red gypsiferous shales of the Moenkopie. Age is Early Triassic.

Source: US geologic names lexicon (USGS Bull. 896, p. 968).


Map showing publication footprint
  • Usage in publication:
    • Holbrook member*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Black Mesa basin
    • Plateau sedimentary province
Publication:

McKee, E.D., 1951, Triassic deposits of the Arizona-New Mexico border area, IN Smith, C.T., and Silver, Caswell, eds., Guidebook of the San Juan basin [covering south and west sides], New Mexico and Arizona: New Mexico Geological Society Field Conference Guidebook, no. 2, p. 85.


Summary:

Pg. 86, 87 (fig. 1). Holbrook sandstone member of Moenkopi formation. Characterized by red beds (shaly siltstones and structureless mudstones) alternating with resistant thick-bedded sandstones. Estimated thickness 110 feet. Overlies Winslow member (new); underlies Shinarump conglomerate. Age of Moenkopi is considered Early and Middle(?) Triassic.
Exposed in Little Colorado River area, Coconino and Navajo Cos., northeastern AZ.

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 1778-1779).


Map showing publication footprint
  • Usage in publication:
    • Holbrook member
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Plateau sedimentary province
Publication:

McKee, E.D., 1954, Stratigraphy and history of the Moenkopi formation of Triassic age: Geological Society of America Memoir, 61, 133 p.


Summary:

Pg. 18 (table 4). Holbrook sandstone member of Moenkopi formation. Present classification of Moenkopi in Little Colorado River area is (ascending) Wupatki, Moqui (new), and Holbrook members. Thickness of Holbrook 25 to 138 feet. Fossils. Age of Moenkopi is considered Early and Middle(?) Triassic.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1778-1779); supplemental information from GNU records (USGS DDS-6; Denver GNULEX).


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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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