Stratigraphy of the Cambrian and Ordovician rocks of east-central Alaska /

Upper Cambrian-Lower Ordovician Notch Peak Formation in western Utah /
by: Hintze, Lehi F.
Published: (1988)

Cambrian-Ordovician geology of the Ottawa region /
Published: (1992)

Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia /
by: Ryder, Robert T.
Published: (2003)

Cambrian and Ordovician rocks of southern Arizona and New Mexico and westernmost Texas /
by: Hayes, Philip T. (Philip Thayer), 1923-
Published: (1975)

Glauconite in the Cambrian-Ordovician Bliss formation near Silver City, New Mexico /
by: Lewis, Douglas W.
Published: (1962)

Stratigraphy, sedimentology, and Cambro-Ordovician paleogeography of the Frederick Valley, Maryland /
by: Reinhardt, Juergen, 1946-
Published: (1974)

Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern midcontinent, U.S.A /
Published: (1986)

Cambrian and early Ordovician stratigraphy and paleontology of the Basin and Range Province, Western United States : Las Vegas, Nevada to Salt Lake City, Utah July 1-7, 1989 /
Published: (1989)

Hydrogeology of the Cambrian-Ordovician aquifer system in the northern midwest, United States /
by: Young, H. L.
Published: (1992)

Cambrian stratigraphy of the Wendover area, Utah and Nevada /
by: McCollum, Linda Busby
Published: (1991)

Summary of ground-water hydrology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States /
by: Young, H. L.
Published: (1992)

Late Cambrian-Ordovician geology of the southern midcontinent, 1989 symposium : proceedings of a symposium held October 18-19, 1989, at Norman, Oklahoma /
Published: (1991)

Stratigraphy of Middle Ordovician rocks in the zinc-lead district of Wisconsin, Illinois, and Iowa /
by: Agnew, Allen F., 1918-2012
Published: (1956)

Subsurface projection of Cambro-Ordovician sediments in the Pennsylvania-New York region.
by: Swartz, Frank McKim, 1899-
Published: (1950)

Cambrian rocks of the Pioche mining district, Nevada /
by: Merriam, Charles Warren, 1905-
Published: (1964)

Upper Cambrian Orr Formation : its subdivisions and correlatives in western Utah /
by: Hintze, Lehi F., et al.

The Moore Hollow Group of central Texas /
by: Barnes, Virgil E. (Virgil Everett), 1903-1998
Published: (1977)

Stratigraphy and geologic history of Middle Ordovician rocks of central Tennessee.
by: Wilson, Charles William, 1905-
Published: (1962)

Precambrian and Lower Ordovician rocks in east-central Idaho.
Published: (1975)

Stratigraphy of the Winnipeg and Deadwood formations in North Dakota.
by: Carlson, C. G. (Clarence Gustav)
Published: (1960)

Petroleum source-rock potential of Arbuckle and Ellenburger Groups, southern mid-continent, United States /
by: Cardwell, A. Lynn
Published: (1977)

Pre-Knox (Cambrian) stratigraphy in Indiana /
by: Becker, Leroy E.
Published: (1978)

Upper Precambrian and Lower Cambrian strata in the southern Great Basin California and Nevada /
by: Stewart, J. H., 1928-2013
Published: (1970)

Geochemistry of the Cambrian-Ordovician aquifer system in the Northern Midwest, United States /
by: Siegel, Donald I.
Published: (1989)

Ordovician and older rocks of the Bayhorse area, Custer County, Idaho /
by: Hobbs, S. W. (Samuel Warren), 1911-
Published: (1990)

Geologic, geochemical, and isotopic studies of a carbonate- and siliciclastic-hosted Pb-Zn deposit at Lion Hill, Vermont.
Published: (1995)

Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Lake County, Ohio, to Juniata County, Pennsylvania /
by: Ryder, Robert T.
Published: (2002)

Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia /
by: Ryder, Robert T.
Published: (2008)

Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia /
by: Ryder, Robert T.
Published: (2008)

Stratigraphy and structure of Middle and Upper Ordovician rocks in the Sedgwick Basin and adjacent areas, south-central Kansas /
by: Adkison, W. L.
Published: (1972)

Uppermost Precambrian and lowest Cambrian rocks in southeastern Idaho /
by: Oriel, Steven S., et al.
Published: (1971)

Lower and Middle Cambrian stratigraphy in the Great Basin area /
by: Wheeler, Harry E. (Harry Eugene), 1907-1987
Published: (1944)

The Precambrian-Cambrian boundary /
Published: (1989)

Middle Ordovician rocks of the Tellico-Sevier Belt, Eastern Tennessee.
by: Neuman, Robert B., 1920-
Published: (1955)

Petrology and diagenesis of Upper Cambrian rocks of central and western Colorado /
by: Lewis, John Hubbard
Published: (1965)

Faunas and stratigraphy of the Snowy Range formation (Upper Cambrian) in southwestern Montana and northwestern Wyoming /
by: Grant, Richard E., 1927-1994
Published: (1965)