Holbrook Member of Moenkopi Formation

Usage of Geologic Unit Name:
Holbrook Member*
Triassic, Early*
Triassic, Middle?*
Geologic Province:
Black Mesa basin*
Plateau sedimentary province*
Areal Extent:
Type Locality:
Not designated; exposed in cliffs between Winslow and Holbrook, for which unit probably named, Navajo Co., AZ (Hager, 1922).
Unit Name History:
Named as upper sandstone of Moenkopi Formation (Hager, 1922). Reduced to member rank and assigned to Moenkopi Formation as upper of three members (McKee, 1951). Revised (McKee, 1954; Cooley, 1958).

Hager, Dorsey, 1922, Oil possibilities of the Holbrook area in northeast Arizona: Mining and Oil Bulletin, v. 8, no. 2, p. 71-74, 81, 94, Also, 1922, v. 8, no. 1, p. 23-26, 33-34; no. 3, p. 135-140.

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

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

Cooley, M.E., 1958, The Mesa Redondo member of the Chinle formation, Apache and Navajo Counties, Arizona: Plateau, v. 31, no. 1, p. 7-15.

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* show accepted USGS usage.
Note that data on this page contains information that has been partly revised from bibliographic resources available via the National Geologic Map Database GEOLEX:
The URL is: https://gotbooks.miracosta.edu/gonp/coloradoplateau/lexicon/moenkopi_holbrook.htm
Last modified: 1/7/2011