Glauconite in the Cambrian-Ordovician Bliss formation near Silver City, New Mexico /

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

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

Cambrian and Ordovician stratigraphy and oil and gas possibilities in Indiana.
by: Gutstadt, Allan M.
Published: (1958)

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: (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)

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)

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

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

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)

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)

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

Petrography and depositional environments of the Lower Ordovician El Paso Formation /
by: Clemons, Russell E.
Published: (1991)

The glauconite deposits on the Agulhas Bank, South Africa /
by: Birch, G. F.
Published: (1971)

Geology of the Upper Proterozoic to Lower Cambrian Three Sisters formation, Gypsy quartzite, and Addy quartzite, Stevens and Pend Oreille counties, northeastern Washington /
by: Lindsey, Kevin A., 1957-
Published: (1990)

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

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

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

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

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

The Precambrian-Cambrian boundary /
Published: (1989)

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)

Cambro-Ordovician carbonate banks and siliciclastic basins of the United States Appalachians : Knoxville, Tennessee to Hagerstown, Maryland June 30-July 9, 1989 /
Published: (1989)

Lower and middle Cambrian formation of the Mohave Desert.
by: Clark, Clifton Wirt, 1888-
Published: (1921)

The Shawangunk Formation (Upper Ordovician(?) to Middle Silurian) in eastern Pennsylvania /
by: Epstein, Jack Burton, 1935-, et al.
Published: (1972)

The ecology of the Cambrian radiation /
Published: (2001)

Cambrian of the new world /
by: Holland, C. H. (Charles Hepworth)
Published: (1971)

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

The pre-Cambrian-Cambrian succession ; the general and economic geology of these systems, in portions of South Australia /
by: Segnit, Ralph Walter
Published: (1939)

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

Cambrian and Devonian stratigraphic problems of Eastern Alabama /
Published: (1977)

Itinerary: 1. Lithostratigraphy of the Ordovician Lexington limestone and Clays Ferry formation of the central Bluegrass area near Lexington, Kentucky /
by: Black, Douglas F. B.
Published: (1965)

The Tommotian stage and the Cambrian lower boundary problem = Tommotskii yarus i problema nizhnei granitsy kembriya /
Published: (1981)

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

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