USGS - science for a changing world

Geology of National Parks, 3D and Photographic Tours

Mowry Shale

Usage of Geologic Unit Name:
Mowry Shale (UT*,WY*)
Mowry Shale of Mancos Group (CO*,UT*)
Mowry Shale of Colorado Group (MT*,ND*,SD*,UT,WY*)
Mowry Formation of Dakota Group (ND)
Mowry Member of Colorado Shale (MT,WY)
Mowry Member of Benton Shale (CO)
Mowry Member of Graneros Shale (SD,WY)
Mowry Member of Mancos Shale (UT*)
Age:
Cretaceous, Late*
Cenomanian, early*

Geologic Province:
Big Horn basin*
Central Montana uplift*
Chadron arch*
Denver basin*
Green River basin*
Montana folded belt province*
North Park basin*
Powder River basin*
Sweetgrass arch*
Uinta uplift*
Williston basin*
Wind River basin*
Yellowstone province*

Areal Extent:
CO*
MT*
ND*
SD*
UT*
WY*
Type Locality:
Not designated. Named for Mowrie Creek, northwest of Buffalo, Johnson Co., WY (Darton, 1904). Spelling changed to Mowry in 1906 [Geologic names lexicons, USGS Bull. 896, 1200].
Reference section designated on north side of Rocky Creek Canyon, SW/4 sec. 20, T. 2 S., R. 7 E., Gallatin Co., MT (Roberts, 1972).
Subunits:
Formation rank (alphabetical): Bow Island Sandstone Member (MT), Clay Spur Bentonite Bed (MT*,SD*,WY*), Dynneson Sandstone Member (MT), Vaughn Member (MT*).
Unit Name History:
Named Mowrie beds (N.H. Darton, 1904, GSA Bull., v. 15, p. 394-401) [Geologic names lexicons, USGS Bull. 896, 1200]. Areal limits (Darton, 1905). Overview (Wegemann, 1911). Revised; Areal limits (Lupton, 1916). Overview (Hancock, 1920; Rubey, 1929). Revised; Redescribed as "Mowry siliceous shale"; Overview (Rubey, 1931). Revised (Thom and Spieker, 1931). Revised; Age modified (Reeside, 1944). Age modified; Biostratigraphic dating (Cobban and Reeside, 1951). Revised (Love and Hose, 1951). Overview (Cobban, 1951; Crowley, 1951; Waage, 1955). Areal limits; Overview (Hansen, 1955). Overview (Eicher, 1958). Revised; Overview (Reeside and Cobban, 1960). Dynneson Sandstone Member named; Overview (Wulf, 1962). Areal limits (MacKenzie, 1965). Revised (Fraser and others, 1969; Maughan, 1972). Reference (Roberts, 1972). Overview (Harshman, 1972). Isotopic dating (Marvin and Dobson, 1979). Mapped 1:24k, Moffat Co, CO (Rowley and Hansen, 1979). Mapped 1:24k, Garfield Co, CO (O'Sullivan, 1985). Revised (Crabtree, 1988). Areal limits (Braddock and others, 1988a, 1988b, 1988c, 1988d, 1989; Courtright and Braddock, 1989). Biostratigraphic dating; Age modified (Aubrey, 1989; Cobban and Kennedy, 1989). Isotopic dating (Antweiler and others, 1989). Revised; Areal limits (Tysdal and others, 1989a). Overview (Tysdal and others, 1989b). Revised, assigned as basal formation of Mancos Group (Molenaar and Wilson, 1990). Areal limits (Fox, 1993). Isotopic dating (Obradovich, 1993).

References

Darton, N.H., 1904, Comparison of the stratigraphy of the Black Hills, Bighorn Mountains, and Rocky Mountain Front Range: Geological Society of America Bulletin, v. 15, p. 379-448.

Darton, N.H., 1905, Description of the Sundance quadrangle [Wyoming-South Dakota]: U.S. Geological Survey Geologic Atlas of the United States, Sundance folio, no. 127, 12 p.

Wegemann, C.H., 1911, The Salt Creek oil field, Natrona County, Wyoming, IN Woodruff, E.G., and Wegemann, C.H., The Lander and Salt Creek oil fields, Wyoming: U.S. Geological Survey
Bulletin, 452, p. 37-83.

Lupton, C.T., 1916, Oil and gas near Basin, Big Horn County, Wyoming, IN Contributions to economic geology, 1915; Part 2, Mineral fuels: U.S. Geological Survey Bulletin, 621-L, p. L157-L190.

Hancock, E.T., 1920, The Upton-Thornton oil field, Wyoming, IN Contributions to economic geology, 1920; Part 2, Mineral fuels: U.S. Geological Survey Bulletin, 716-B, p. B17-B34.

Rubey, W.W., 1929, Origin of the siliceous Mowry shale of the Black Hills region, IN Shorter contributions to general geology, 1928: U.S. Geological Survey Professional Paper, 154-D, p. D153-D170.

Thom, W.T., Jr. and Spieker, E.M., 1931, The significance of geologic conditions in Naval Petroleum Reserve No. 3 , Wyoming: U.S. Geological Survey Professional Paper, 163, 64 p.

Rubey, W.W., 1931, Lithologic studies of fine-grained Upper Cretaceous sedimentary rocks of the Black Hills region, IN Shorter contributions to general geology, 1930: U.S. Geological Survey Professional Paper, 165-A, p. A1-A54.

Reeside, J.B., Jr., 1944, Maps showing thickness and general character of the Cretaceous deposits in the Western Interior of the United States: U.S. Geological Survey Oil and Gas Investigations Map, OM-10, 1 sheet, scale 1:13,939,200.

Cobban, W.A. and Reeside, J.B., Jr., 1951, Lower Cretaceous ammonites in Colorado, Wyoming, and Montana: American Association of Petroleum Geologists Bulletin, v. 35, no. 8, p. 1892-1893.

Crowley, A.J., 1951, Possible Lower Cretaceous uplifting of Black Hills, Wyoming and South Dakota: American Association of Petroleum Geologists Bulletin, v. 35, no. 1, p. 83-90.

Cobban, W.A., 1951, Colorado shale of central and northwestern Montana and equivalent rocks of the Black Hills: American Association of Petroleum Geologists Bulletin, v. 35, no. 10, p. 2170-2198.

Love, J.D. and Hose, R.K., 1951, Stratigraphic sections of Cretaceous rocks in northeastern Teton County, Wyoming: U.S. Geological Survey Oil and Gas Investigations Chart, OC-43, 2 sheets.

Waage, K.M., 1955, Dakota group in northern Front Range foothills, Colorado, IN Shorter contributions to general geology, 1955-57: U.S. Geological Survey Professional Paper, 274-B, p. B15-B51.

Hansen, D.E., 1955, Subsurface correlations of the Cretaceous Greenhorn-Lakota interval in North Dakota: North Dakota Geological Survey Bulletin, no. 29.

Eicher, D.L., 1958, The Thermopolis shale in eastern Wyoming, IN Bibb, T.W., Jr., chairman, Powder River basin: Wyoming Geological Association Field Conference Guidebook, no. 13, p. 79-83.

Reeside, J.B., Jr. and Cobban, W.A., 1960, Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada: U.S. Geological Survey Professional Paper, 355, 126 p.

Wulf, G.R., 1962, Lower Cretaceous Albian rocks in northern Great Plains: American Association of Petroleum Geologists Bulletin, v. 46, no. 8, p. 1371-1415.

MacKenzie, D.B., 1965, Depositional environments of Muddy Sandstone, western Denver basin, Colorado: American Association of Petroleum Geologists Bulletin, v. 49, no. 2, p. 186-206.

Fraser, G.D., Waldrop, H.A. and Hyden, H.J., 1969, Geology of the Gardiner area, Park County, Montana: U.S. Geological Survey Bulletin, 1277, 118 p.

Harshman, E.N., 1972, Geology and uranium deposits, Shirley basin area, Wyoming: U.S. Geological Survey Professional Paper, 745, 82 p.

Roberts, A.E., 1972, Cretaceous and early Tertiary depositional and tectonic history of the Livingston area, southwestern Montana, IN Geology of the Livingston area, southwestern Montana: U.S. Geological Survey Professional Paper, 526-C, p. C1-C120, (incl. geologic map, scale 1:62,500).

Maughan, E.K., 1972, Geologic map of the Devil Slide quadrangle, Hot Springs County, Wyoming: U.S. Geological Survey Geologic Quadrangle Map, GQ-1041, 1 sheet, scale 1:24,000.

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.

Marvin, R.F. and Dobson, S.W., 1979, Radiometric ages; compilation "B", U.S. Geological Survey: Isochron/West, no. 26, p. 3-32.

O'Sullivan, R.B., 1985, Preliminary geologic map of the Rio Blanco quadrangle, Rio Blanco and Garfield Counties, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map, MF-1816, 1 sheet.

Crabtree, D.R., 1988, Mid-Cretaceous ferns in situ from the Albino Member of the Mowry Shale, southwestern Montana: Palaeontographica, Abt. B, Lfg. 1-3, Bd. 209, p. 1-27.

Braddock, W.A., Nutalaya, Prinya and Colton, R.B., 1988, Geologic map of the Crater Lake Reservoir quadrangle, Boulder and Larimer Counties, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1628, 1 sheet, scale 1:24,000.

Braddock, W.A., Houston, R.G., Colton, R.B. and Cole, J.C., 1988, Geologic map of the Lyons quadrangle, Boulder County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1629, 1 sheet, scale 1:24,000.

Braddock, W.A., Wohlford, D.D. and Connor, J.J., 1988, Geologic map of the Livermore quadrangle, Larimer County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1618, 1 sheet, scale 1:24,000.

Braddock, W.A., Connor, J.J., Swann, G.A. and Wohlford, D.D., 1988, Geologic map of the LaPorte quadrangle, Larimer County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1621, 1 sheet, scale 1:24,000, Supersedes U.S. Geological Survey Open-File Report OF-73-30.

Aubrey, W.M., 1989, Mid-Cretaceous alluvial plain incision related to eustasy, southeastern Colorado Plateau: Geological Society of America Bulletin, v. 101, no. 4, p. 443-449.

Tysdal, R.G., Dyman, T.S. and Nichols, D.J., 1989, Lower Cretaceous bentonitic strata in southwestern Montana assigned to Vaughn Member of Mowry Shale (east) and of Blackleaf Formation (west): The Mountain Geologist, v. 26, no. 2, p. 53-61.

Antweiler, J.C., Love, J.D., Prostka, H.J., Kulik, D.M., Anderson, L.A., Williams, F.E., Jinks, J.E. and Light, T.D., 1989, Mineral resources of the Teton Wilderness and adjacent areas, Teton, Fremont, and Park Counties, Wyoming: U.S. Geological Survey Bulletin, 1781, 105 p., (incl. geologic map, scale 1:125,000).

Cobban, W.A. and Kennedy, W.J., 1989, The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming, IN Evolution of sedimentary basins; Uinta and Piceance basins: U.S. Geological Survey Bulletin, 1787-L, p. L1-L11.

Braddock, W.A., Calvert, R.H., O'Connor, J.T. and Swann, G.A., 1989, Geologic map of the Horsetooth Reservoir quadrangle, Larimer County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1625, 1 sheet, scale 1:24,000, Supersedes U.S. Geological Survey Open-File Report OF-73-29.

Courtright, T.R. and Braddock, W.A., 1989, Geologic map of the Table Mountain quadrangle and adjacent parts of the Round Butte and Buckeye quadrangles, Larimer County, Colorado, and Laramie County, Wyoming: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1805, 1 sheet, scale 1:24,000.

Tysdal, R.G., Dyman, T.S. and Nichols, D.J., 1989, Correlation chart of Lower Cretaceous rocks, Madison Range to Lima Peaks area, southwestern Montana: U.S. Geological Survey Miscellaneous Field Studies Map, MF-2067, 15 p., 1 sheet.

Molenaar, C.M. and Wilson, B.W., 1990, The Frontier Formation and associated rocks of northeastern Utah and northwestern Colorado, IN Evolution of sedimentary basins; Uinta and Piceance basins: U.S. Geological Survey Bulletin, 1787-M, p. M1-M21.

Obradovich, J.D., 1993, A Cretaceous time scale, IN Caldwell, W.G., and Kauffman, E.G., editors, Evolution of the Western Interior basin: Geological Association of Canada Special Paper, 39, p. 379-396.

Fox, J.E., 1993, Stratigraphic cross sections showing electric logs of Upper Cretaceous and older rocks, Powder River basin, southeastern Montana and northeastern Wyoming: U.S. Geological Survey Oil and Gas Investigations Chart, OC-135 to OC-138, 4 sheets, sections A-A' trhough F-F'; G-G' through L-L'; M-M' through R-R'; S-S' through V-V'

Roberts, Laura N. R., 2003, Structure contour map of the top of the Dakota Sandstone, Uinta-Piceance Province, Utah and Colorado: In, Petroleum systems and geologic assessment of oil and gas in the Uinta-Piceance Province, Utah and Colorado: U. S. Geological Survey Digital Data Series, DDS-0069-B, 11 p.

Kirschbaum, Mark A., 2003, Geologic assessment of undiscovered oil and gas resources of the Mancos/Mowry total petroleum system, Uinta-Piceance Province, Utah and Colorado: In, Petroleum systems and geologic assessment of oil and gas in the Uinta-Piceance Province, Utah and Colorado: U. S. Geological Survey Digital Data Series, DDS-0069-B, 42 p.

Oboh-Ikuenobe, Francisca E., Holbrook, J. M., Evetts, M. J., and Scott, R. W. 2002,
Palynofacies model of marine transgressions; Mid-Cretaceous flooding, Western Interior Seaway: Palynology, v. 26, p. 272.

Stewart, J D; Bilbey, Sue Ann; Chure, Daniel J; Madsen, Scott K., 1994, Vertebrate fauna of the Mowry Shale (Cenomanian) in northeastern Utah: Journal of Vertebrate Paleontology, v. 14, no. 3, Supplement, p. 47.

Return to Main Page

* show accepted USGS usage. Note that data on this page is modified from information available via the National Geologic Map Database GEOLEX:
http://ngmdb.usgs.gov/Geolex/geolex_qs.html.

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://3dparks.wr.usgs.gov/coloradoplateau/lexicon/mowry.htm
Page Contact Information: Education Webmaster
Page Last Modified: 03-May-2017@08:54