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The Helderberg Group and the Position of the Silurian-Devonian Boundary in North America
A paper that reviews the Helderberg Group and its relation to the Silurian-Devotion boundary.
Date:
1964
Creator:
Berdan, Jean M.
Object Type:
Report
System:
The UNT Digital Library
Coal Resources of Lawrence County Pennsylvania
A report about the coal-bearing rocks found in Lawrence County, Pennsylvania. Lawrence County is in west-Central Pennsylvania in the northern part of the Appalachian coal field.
Date:
1964
Creator:
Van Lieu, J. A. & Patterson, Elmer D.
Object Type:
Report
System:
The UNT Digital Library
The Role of Clays in Fixing Lithium
A report about lithium inside of clay minerals. Lithium can be present in clays as impurities, inclusions, lattice cavities, or by isomorphous substitution.
Date:
1982
Creator:
Starkey, Harry C.
Object Type:
Report
System:
The UNT Digital Library
Selenium in Some Oxidized Sandstone-type Uranium Deposits
A report about selenium and other trace metals in samples from some oxidized sandstone-type uranium deposits that demonstrate that concentrations of as much as 0.1 percent selenium are not uncommon in the immediate vicinity of uranium concentrations.
Date:
1963
Creator:
Davidson, D. F.
Object Type:
Report
System:
The UNT Digital Library
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.
Object Type:
Report
System:
The UNT Digital Library
Split Rock Formation (Miocene) and Moonstone Formation (Pliocene) in Central Wyoming
A paper about Split Rock formation of Miocene age in central Wyoming. It contains mostly consolidated quartz sandstone with lesser amounts of tuff, pumicite, limestone, and claystone.
Date:
1961
Creator:
Love, J. D.
Object Type:
Report
System:
The UNT Digital Library
Cenozoic Geology in the Mammoth Area Pinal County, Arizona
A report about the lower San Pedro Valley in Arizona. This report shows how mapping discrete units of the valley may lead to a broadened understanding of Cenozoic history of intermontane basins in Arizona.
Date:
1963
Creator:
Heindl, L. A.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1975
The following document provides a list of publications about geology which relates to nomenclatural changes.
Date:
1976
Creator:
Cohee, George V. & Wright, Wilna B.
Object Type:
Report
System:
The UNT Digital Library
Geology of the Duck Creek Pass Quadrangle Montana
A report about the Duck Creek Pass quadrangle which forms a large part of the bedrock of western Montana and adjoins other areas in which geologic studies are already completed or in progress.
Date:
1963
Creator:
Nelson, Willis H.
Object Type:
Report
System:
The UNT Digital Library
Geology and Mineral Fuels of Parts of Routt and Moffat Counties, Colorado
A report about minerals fuels and geologies located in parts of the Routt and Moffat counties, Colorado.
Date:
1955
Creator:
Bass, N. Wood; Eby, J. Brian & Campbell, Marius R.
Object Type:
Report
System:
The UNT Digital Library
Nomenclature of Precambrian Rocks in Colorado
Abstract: "The Precambrian rocks of Colorado consist of a metaphoric complex more than 1,700 million years in age, three groups of igneous rocks about 1,700, 1,400, and 1,000 million years in age, here designated informal age groups, and two areally restricted units of sedimentary rocks, one between 1,400 and 1,700 million years in age and one between 950 and 1,400 million years. A systematic nomenclature for many of the rocks does not exist, but the present state of knowledge will permit establishment of a comprehensive nomenclature. Numerous formal names that have been applied to elements of the Precambrian assemblage are appraised and classified in a table, and eight names are abandoned."
Date:
1977
Creator:
Tweto, Ogden
Object Type:
Report
System:
The UNT Digital Library
Coal Resources of the United States
A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
Date:
January 1, 1974
Creator:
Averitt, Paul
Object Type:
Report
System:
The UNT Digital Library
Distribution and Thickness of Devonian Rocks in Williston Basin and in Central Montana and North-Central Wyoming
A report which includes 200,000 square miles in the southern part of the Williston basin of North Dakota, South Dakota, and Montana. The Devonian rocks consist mostly of marine carbonate, evaporite, and shale beds.
Date:
1961
Creator:
Sandberg, Charles A.
Object Type:
Report
System:
The UNT Digital Library
Laccolith Complexes of Southeastern Utah: Time of Emplacement and Tectonic Setting - Workshop Proceedings
This report summarizes much of the materials presented at the workshop and provides an extensive list of selected references pertaining to geochronology and tectonics of the Colorado Plateau to facilitate further research.
Date:
1998
Creator:
Friedman, Jules D. & Huffman, A. Curtis, Jr.
Object Type:
Report
System:
The UNT Digital Library
Gold in the Black Pine Mining District, Southeast Cassia County, Idaho
A report about base and precious metals in the Black Pine mining district in the Black Pine Mountains . Two different types of mineral deposits are identified.
Date:
1984
Creator:
Brady, Bruce T.
Object Type:
Report
System:
The UNT Digital Library
Selected Annotated Bibliography on the Geochemistry of Gold
A bibliography of about 200 selected references which contain information on source materials dealing with the genesis and geochemistry of gold and geochemical prospecting for gold deposits.
Date:
1971
Creator:
Cooper, Margaret
Object Type:
Report
System:
The UNT Digital Library
Mineralogy and Geochemistry of Some Belt Rocks, Montana and Idaho
A report which compares 20,000 feet of Belt rocks in the Mission Mountains Primitive Area in Montana with 40,000 feet of Belt rocks in the Pend Oreille area in Idaho and Montana.
Date:
1970
Creator:
Harrison, J. E. & Grimes, D. J.
Object Type:
Report
System:
The UNT Digital Library
Minerals of Colorado: A 100-Year Record
A report about the known facts about the minerals that make up the rocks, soils, and ore deposits of Colorado.
Date:
1961
Creator:
Eckel, Edwin B.
Object Type:
Report
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1973
A paper which provides a list of nomenclatural changes. The list also contains publications, the authors, and the names of the reports.
Date:
1975
Creator:
Cohee, George V. & Wright, Wilna R.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy of the State Bridge Formation in the Woody Creek Quadrangle, Pitkin and Eagle Counties, Colorado
A report about the lithologic units within a red-bed sequence that help to interpret the history and structure of the Woody Creek quadrangle, west-central Colorado.
Date:
1971
Creator:
Freeman, Val I.
Object Type:
Report
System:
The UNT Digital Library
Clinoptilolite of Possible Economic Value in Sedimentary Deposits of the Conterminous United States
A report about clinoptilolite. It is a common zeolite, it is potentially valuable for many industrial and agricultural processes, and it might be useful in controlling water pollution by removing ammonia from wastewater.
Date:
1971
Creator:
Sheppard, Richard A.
Object Type:
Report
System:
The UNT Digital Library
A Manual on Fire Assaying and Determination of the Noble Metals in Geological Materials
A report that provides details about fire assaying techniques to separate and concentrate the noble metals from many varieties of samples.
Date:
1977
Creator:
Haffty, Joseph; Riley, L. B. & Goss, W. D.
Object Type:
Report
System:
The UNT Digital Library
New Cretaceous Formations in the Western Wyoming Thrust Belt
A report about six cretaceous rock formations in the western Wyoming thrust belt.
Date:
1973
Creator:
Rubey, William W.
Object Type:
Report
System:
The UNT Digital Library
Stewart Gulch Tongue—A New Tongue of the Eocene Green River Formation, Piceance Creek Basin, Colorado
A report about mapping in the northern and central parts of the Piceance Creek basin of northwestern Colorado where several relatively thin dominantly marlstone units tongue northward into the Eocene Uinta Formation.
Date:
1977
Creator:
Hail, William J., Jr.
Object Type:
Report
System:
The UNT Digital Library