Technical Report Archive & Image Library (TRAIL) - 2,772 Matching Results
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- Mafic and Ultramafic Xenoliths from Volcanic Rocks of the Western United States
- From abstract: Mafic and ultramafic xenoliths in the Western United States are present in volcanic rocks ranging from lamprophyric to dacitic in composition and are found in every major tectonic province from the Coast ranges from California to the Great Plains. Xenoliths from 68 localities are described here, but new localities are being discovered, and much remain to be learned about their distribution with respect to the tectonic and geophysical framework of the Western United States.
- Muscovite in the Spruce Pine District, North Carolina
- From Abstract: "This report describes the occurrence of the mica and its physical properties among which is an unusually wide range of colors. A table is presented showing the results of power-factor measurements made by the National Bureau of Standards on 196 samples of sheet mica from 109 mica mines and 15 feldspar mines.It is concluded that more systematic planning of mica mining, for the district as a whole. would result in an average yearly production of at least 90,000 pounds of relatively clear sheet and possibly much more."
- A Geographic Dictionary of Rhode Island
- A paper designed to aid in finding any geographic feature upon the atlas sheets of Rhode Island published by the U. S. Geological Survey. It contains the names given upon those sheets.
- A Geological Reconnaissance in Northwest Wyoming
- A paper about the geography, topography, and stratigraphy in Wyoming.
- 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.
- Dissolved Radon and Uranium, and Ground-Water Geochemistry in an Area Near Hylas, Virginia
- Report describing the results of experiments to test for radon and uranium in ground water from samples taken near Hylas, Virginia.
- Some Insects of Special Interest from Florissant, Colorado and Other Points in the Tertiaries of Colorado and Utah
- A report about the characteristics of a few Oligocene insects of different orders which, from some peculiarity, have been thought worthy of special study out of serial course.
- The Slumgullion Earth Flow: A Large-Scale Natural Laboratory
- A report about the Slumgullion slide and landslides. It discusses climate changed and how landslides are measured.
- On the Form and Position of the Sea Level
- A report about sea level change and problems and methods pertaining to measuring it.
- 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.
- 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.
- Specification of Source Zones, Recurrence Rates, Focal Depths, and Maximum Magnitudes for Earthquakes Affecting the Savannah River Site in South Carolina
- Report presenting documentation for the development of seismicity parameters to be used as input for probabilistic seismic hazard analyses at the Savannah River Site in South Carolina.
- Magnetic and Gravity Study of the Paducah 1°x2° CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri
- Report outlining magnetic and gravity data pertaining to Illinois, Indiana, Kentucky, and Missouri.
- Bibliography and Index of North American Geology, Paleontology, Petrology, and Mineralogy for the Year 1895
- A report which presents a record of publications on North American geology, paleontology, petrology, and mineralogy for the year 1895.
- The Laramie and the Overlying Livingston Formation in Montana
- This paper provides an account of a series of beds embraced within the Laramie and covering the greater part of the state of Montana east of the Rocky mountains.
- Dolomite Deposit Near Marble Stevens County Washington
- A report about a deposit of dolomite near Marble, Stevens County Washington.
- The Trap Dikes of the Lake Champlain Region
- A paper pertaining to the trap dikes of the region around Lake Champlain.
- 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.
- The Geology of the Fort Riley Military Reservation and Vicinity: Kansas
- A report about the Fort Riley Military Reservation's geology in Kansas.
- 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.
- Origin of Primary and Diagenetic Carbonates in the Lacustrine Green River Formation (Eocene), Colorado and Utah
- A report that used isotopic, mineralogic, and oil-yield data to delineate major hydrologic states, establish the origin of carbonate mineral phases, and determine the controls on the geochemical cycles of carbon and oxygen.
- Base- and Precious-Metal Concentrations of Early Proterozoic Massive Sulfide Deposits in Arizona- Crustal and Thermochemical Controls of Ore Deposition
- A report about early proterozoic massive sulfide deposits associated with submarine mafic to felsic metavolcano rocks are present throughout central, west-central, and northwestern Arizona. Also, production data for copper, lead, zinc, gold, and silver for most of the known deposits and prospects in 13 metallic mineral districts are summarized.
- 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.
- 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.
- The Shelf-Slope Transition-Canyon and Upper Slope Sedimentary Processes on the Southern Margin of Georges Bank
- A report about sedimentary processes on the southern margin of Georges Bank which is based on observations from research submersibles of bottom features, on size analyses of sediment samples, and on measurements of current strength and flow direction.
- Clastic Pipes of Probable Solution-Collapse Origin in Jurassic Rocks of the Southern San Juan Basin, New Mexico
- A report about pipes which contain downdropped strata located in the southwestern part of the San Jun Basin, New Mexico.
- Earthquakes in California in 1896 and 1897
- A report that contains the records of all the shocks observed or felt on Mount Hamilton and all those reported to the Lick Observatory by letter, as well as newspaper reports of such earthquakes.
- Processing and Analysis of Commercial Satellite Image Data of the Nuclear Accident Near Chernobyl, U.S.S.R.
- A report which presents the results of the processing and analysis of commercial satellite image data acquired over the nuclear power plant at Chernobyl in the Soviet Ukraine.
- 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.
- 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.
- 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.
- The 1992 Eruptions of Crater Peak Vent Mount Spurr Volcano, Alaska
- A report which provides an overview of eruptions from Mount Spurr and the Alaska Volcano Observatory's response to them.
- 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."
- 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.
- 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.
- Patterns of Diagenesis in Lower and Middle Pennsylvania Sandstones of the Illinois Basin, Illinois, Indiana, and Kentucky.
- This following report discusses the study of Lower and Middle Pennsylvanian sandstones of the Illinois Basin examined for evidence of regional diagenetic and fluid-flow patterns.
- Geologic, Geochemical, and Isotopic Studies of a Carbonate- and Siliciclastic-Hosted Pb-Zn Deposit at Lion Hill, Vermont
- A report about the potential for Irish-type Pb-Zn deposits in a platform rocks of western Vermont; however, at Lion Hill they contain enrichments of Pb, Zn, and Cu rather than a Pb, Zn, and Ag association.
- Pleistocene and Recent Deposits in the Denver Area Colorado
- A report on the Pleistocene and recent deposits in the Denver area, Colorado. It presents the results of studies that have been conducted intermittently since February 1948.
- Chloride Flux and Surface Water Discharge Out of Yellowstone National Park, 1982-1989
- A report about the chloride flux from Yellowstone National Park (the Park) and the major rivers draining the Park.
- 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.
- Catalogue and Index of Contributions to North American Geology 1732-1891
- A bibliography of geologic literature published in North America, and such literature on North America wherever published. It contains publications from 1732 to those received prior to the close of 1891.
- 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.
- The Educational Series of Rock Specimens
- This report was prepared with 29 specimens of rock which are described in this report.
- A Biographic Index of North American Carboniferous Invertebrates
- A bibliographic list which catalogs the researches among the Carboniferous faunas of North America.
- A Graphic Dictionary of Connecticut
- This report aids in finding any geographic feature upon the atlas sheets of Connecticut published by the U.S. Geological Survey.
- A Geographic Dictionary of Massachusetts
- A report designed to aid in finding any geographic feature upon the atlas sheets of Massachusetts which are published by the U.S. Geological Survey.
- Earthquakes in California in 1893
- A report about recorded shock waves observed or felt on Mount Hamilton, and all those reported to the Lick Observatory by letter, as well as newspaper reports of such earthquakes that occurred in California during that year.
- Earthquakes in California in 1892
- The following report contains all of the shocks observed or felt on Mount Hamilton in 1892, and all those reported to the Lick Observatory by letter, as well as newspaper reports of earthquakes.
- Latitudes and Longitudes of Certain Points in Missouri, Kansas, and New Mexico
- A report about the latitudes and longitudes which were determined by the telegraphic method with respect to the observatory of Washington University.
- 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.