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Coal Resources of Lawrence County Pennsylvania

Description: 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.
Partner: UNT Libraries Government Documents Department
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The Role of Clays in Fixing Lithium

Description: 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.
Partner: UNT Libraries Government Documents Department
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Selenium in Some Oxidized Sandstone-type Uranium Deposits

Description: 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.
Partner: UNT Libraries Government Documents Department
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Index of Generic Names of Fossil Plants, 1820-1965

Description: An index of fossil names between 1820 and 1965. Diatoms, spores, and pollen are excluded from this index.
Date: 1970
Creator: Andrews, Henry N.
Partner: UNT Libraries Government Documents Department
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Cenozoic Geology in the Mammoth Area Pinal County, Arizona

Description: 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.
Partner: UNT Libraries Government Documents Department
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Geology of the Duck Creek Pass Quadrangle Montana

Description: 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.
Partner: UNT Libraries Government Documents Department
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Nomenclature of Precambrian Rocks in Colorado

Description: 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 estab… more
Date: 1977
Creator: Tweto, Ogden
Partner: UNT Libraries Government Documents Department
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Coal Resources of the United States

Description: 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
Partner: UNT Libraries Government Documents Department
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Selected Annotated Bibliography on the Geochemistry of Gold

Description: 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
Partner: UNT Libraries Government Documents Department
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Mineralogy and Geochemistry of Some Belt Rocks, Montana and Idaho

Description: 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.
Partner: UNT Libraries Government Documents Department
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Minerals of Colorado: A 100-Year Record

Description: 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.
Partner: UNT Libraries Government Documents Department
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