The Eagle Valley Evaporite, Northwest Colorado--A Regional Synthesis (open access)

The Eagle Valley Evaporite, Northwest Colorado--A Regional Synthesis

The following report presents a regional study of the extent, thickness, lithology, stratigraphic relations, age, depositional environment, and tectonic history of thick sulfate deposits and associated salts of sodium and potassium.
Date: 1971
Creator: Mallory, William W.
System: The UNT Digital Library
Mineral Resources of the Glacier Primitive Area, Wyoming (open access)

Mineral Resources of the Glacier Primitive Area, Wyoming

The following report follows a mineral survey of the Glacier Primitive Area and adjoining area in Wyoming, that was made in 1968 and 1969.
Date: 1971
Creator: Granger, H. C.; McKay, E. J.; Mattick, Robert E.; Patten, Lowell L. & McIlroy, Paul
System: The UNT Digital Library
Revisions in Stratigraphic Nomenclature of the Columbia River Basalt Group (open access)

Revisions in Stratigraphic Nomenclature of the Columbia River Basalt Group

From abstract: New stratigraphic nomenclature for units within the Columbia River Basalt Group is introduced to revise and expand that currently in use; it is based largely on subdivisions made informally by T. L. Wright, M. J. Grolier, and D. A. Swanson in 1973. The Yakima Basalt is raised to subgroup status, and three formations-the Grande Ronde Basalt, Wanapum Basalt, and Saddle Mountains Basalt, in order of decreasing age-are defined within it.
Date: 1979
Creator: Swanson, Donald A.; Bentley, Robert Donald; Hooper, P. R. & Wright, Thomas L.
System: The UNT Digital Library
Bibliography and Index of U.S. Geological Survey Publications Relating to Coal, 1882-1970 (open access)

Bibliography and Index of U.S. Geological Survey Publications Relating to Coal, 1882-1970

A bibliography that lists about 1,300 U.S. Geological Survey publications related to coal and published prior to January 1, 1971.
Date: 1972
Creator: Averitt, Paul & Lopez, Lorreda
System: The UNT Digital Library
Index of Generic Names of Fossil Plants, 1820-1965 (open access)

Index of Generic Names of Fossil Plants, 1820-1965

An index of fossil names between 1820 and 1965. Diatoms, spores, and pollen are excluded from this index.
Date: 1970
Creator: Andrews, Henry N.
System: The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1969 (open access)

Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1969

A report about the stratigraphic nomenclature changes in geology.
Date: 1970
Creator: Cohee, George V.; Bates, Robert G. & Wright, Wilna B.
System: The UNT Digital Library