Glen Canyon Group

Usage of Geologic Unit Name:
Glen Canyon Group (AZ*,CO*,NV*,NM*,UT*)
Glen Canyon Sandstone (CO*,UT*)
Glen Canyon Group
Glen Canyon Group (undifferentiated) crops out in Glen Canyon. This view is along the Colorado River below Glen Canyon Dam.
Jurassic, Early*
Geologic Province:
Black Mesa basin*
Great Basin province*
Green River basin*
Paradox basin*
Piceance basin*
Plateau sedimentary province*
San Juan basin*
Uinta uplift*
Areal Extent:
Type Locality:
Not designated. Named for exposures in walls that form the Glen Canyon of the Colorado River, Coconino Co., AZ, and San Juan Co., UT (Gregory and Moore, 1931).
Group rank (alphabetical): Kayenta Formation (AZ*,CO*,UT*), Moenave Formation (AZ*,NV*,UT*), Navajo Sandstone (AZ*,CO*,NM*,UT*), Wingate Sandstone (AZ*,CO*,NM*,UT*)
Unit Name History:
Overview (Gilluly and Reeside, 1928). Named (Gregory and Moore, 1931). Revised, Kayenta Formation named (Baker, 1936). Revised, assigned Shurtz Sandstone Tongue (new) and Lamb Point Tongue (new) to Navajo sandstone, and Cedar City Tongue (new) and Tenney Canyon Tongue (new) to Kayenta formation (Averitt and others, 1955). Overview; Revised, Moenave Formation assigned and Wingate Sandstone divided into newly named Rock Point and Lukachukai members (Harshbarger and others, 1957). Age modified (Lewis and others, 1961). Upper contact revised (Phoenix, 1963). Rank reduced to Glen Canyon Sandstone; Areal limits (Poole and Stewart, 1964). Areal limits (Wilson and Stewart, 1967). Areal limits; Overview (Green, 1974). Upper contact revised; Overview (Peterson and Pipiringos, 1979). Mapped 1:24k in southwest Moffat Co, CO (Rowley and Hansen, 1979). Age modified (Padian, 1989). Age modified; Lower contact revised (Dubiel, 1989). Areal limits (Condon, 1992).


Gilluly, James and Reeside, J.B., Jr., 1928, Sedimentary rocks of the San Rafael Swell and some adjacent areas in eastern Utah, IN Shorter contributions to general geology, 1927: U.S. Geological Survey Professional Paper, 150-D, p. D61-D110.

Gregory, H.E. and Moore, R.C., 1931, The Kaiparowits region, a geographic and geologic reconnaissance of parts of Utah and Arizona: U.S. Geological Survey Professional Paper, 164, 161 p.

Baker, A.A., 1936, Geology of the Monument Valley-Navajo Mountain region, San Juan County, Utah: U.S. Geological Survey Bulletin, 865, 106 p., Also, U.S. Geological Survey Oil and Gas Investigations Map OM-168, and Bulletin 1087-D.

Averitt, Paul, Wilson, R.F., Detterman, J.S., Harshbarger, J.W. and Repenning, C.A., 1955, Revisions in correlation and nomenclature of Triassic and Jurassic formations in southwestern Utah and northern Arizona: American Association of Petroleum Geologists Bulletin, v. 39, no. 12, p. 2515-2524.

Harshbarger, J.W., Repenning, C.A. and Irwin, J.H., 1957, Stratigraphy of the uppermost Triassic and the Jurassic rocks of the Navajo country: U.S. Geological Survey Professional Paper, 291, 74 p.

Lewis, G.E., Irwin, J.H. and Wilson, R.F., 1961, Age of the Glen Canyon Group (Triassic and Jurassic) on the Colorado Plateau: Geological Society of America Bulletin, v. 72, no. 9, p. 1437-1440.

Phoenix, D.A., 1963, Geology of the Lees Ferry area, Coconino County, Arizona: U.S. Geological Survey Bulletin, 1137, 86 p.

Poole, F.G. and Stewart, J.H., 1964, Chinle Formation and Glen Canyon Sandstone in northeastern Utah and northwestern Colorado, IN Geological Survey research 1964: U.S. Geological Survey Professional Paper, 501-D, p. D30-D39, Also, 1964, Intermountain Association of Petroleum Geologists, 13th Annual Field Conference, Guidebook to the geology and mineral resources of the Uinta basin, Utah's hydrocarbon storehouse, p. 93-104.

Wilson, R.F. and Stewart, J.H., 1967, Correlation of Upper Triassic and Triassic(?) formations between southwestern Utah and southern Nevada, IN Contributions to stratigraphy, 1966: U.S. Geological Survey Bulletin, 1244-D, p. D1-D20.

Green, M.W., 1974, The Iyanbito Member (a new stratigraphic unit) of the Jurassic Entrada Sandstone, Gallup-Grants area, New Mexico, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1395-D, p. D1-D12.

Rowley, P.D. and Hansen, W.R., 1979, Geologic map of the Plug Hat quadrangle, Moffat County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1514, 1 sheet, scale 1:24,000.

Peterson, Fred and Pipiringos, G.N., 1979, Stratigraphic relationships of the Navajo Sandstone to Middle Jurassic formations in parts of southern Utah and northern Arizona, IN Unconformities, correlations, and nomenclature of some Triassic and Jurassic rocks, Western Interior United States: U.S. Geological Survey Professional Paper, 1035-B, p. B1-B43, Supersedes 1979, U.S. Geological Survey Open-File Report, OF-79-281, 179 p.

Padian, K., 1989, Presence of dinosaur Scelidosaurus indicates Jurassic age for the Kayenta Formation (Glen Canyon Group, northern Arizona): Geological Society of America, Geology, v. 17, no. 5, p. 438-441.

Dubiel, R.F., 1989, Sedimentology and revised nomenclature of the Upper Triassic Chinle Formation and the Lower Jurassic Wingate Sandstone, northwestern New Mexico and northeastern Arizona, IN Anderson, O.J., and others, editors, Southeastern Colorado Plateau: New Mexico Geological Society Guidebook, no. 40, p. 213-223.

Condon, S.M., 1992, Geologic framework of pre-Cretaceous rocks in the Southern Ute Indian Reservation and adjacent areas, southwestern Colorado and northwestern New Mexico, IN Geology and mineral resources of the Southern Ute Indian Reservation: U.S. Geological Survey Professional Paper, 1505-A, p. A1-A56.

Beitler, Brenda., Chan, Marjorie A., Parry, William T., 2003, Bleaching of Jurassic Navajo Sandstone on Colorado Plateau Laramide highs., evidence of exhumed hydrocarbon supergiants? Geology (Boulder), v. 31, no. 12, p. 1041-1044.

Sues, Hans-Dieter., Clark, James M., Jenkins, Farish A., Jr., 1997, A review of the Early Jurassic tetrapods from the Glen Canyon Group of the American Southwest: In, In the shadow of the dinosaurs., early Mesozoic tetrapods: Fraser, Nicholas C., Sues, Hans-Dieter, editors, Cambridge University Press.

Lockley, Martin G., Hunt, Adrian P., Meyer, Christian., Rainforth, Emma C., Schultz, Rebecca J., 1998, A survey of fossil footprint sites at Glen Canyon National Recreation Area (Western USA)., a case study in documentation of trace fossil resources at a national preserve Ichnos (Chur, Switzerland), v. 5, no. 3, p. 177-211.

Robertson, Jacques F., O'Sullivan, Robert B., 2001, The Middle Jurassic Entrada Sandstone near Gallup, New Mexico: The Mountain Geologist, v. 38, no. 2, p. 53-69.

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Last modified: 1/7/2011