Technical Report Archive & Image Library (TRAIL) - 142 Matching Results
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- 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.
- 40Ar/39Ar Age Spectra and Total-Fusion Ages of Tektites from Cretaceous-Tertiary Boundary Sedimentary Rocks in the Beloc Formation, Haiti
- A report about Haitian tektites at the paleontological K-T boundary along with an Ir abundance anomaly and shocked quartz.
- Advances in Research on Mineral Resources, 1994
- This report talks about some of the current domestic and international research activities of the Office of Mineral Resources, Geological Division of the USGS.
- Advances Related to United States and International Mineral Resources: Developing Frameworks and Exploration Technologies
- The following report provides information for the public good about the origin, quality, and quantity of mineral resources world-wide. This Bulletin reports progress on some of the current activities of the Office of Mineral Resources and reflects the necessity for an international perspective regarding mineral resources and research technology.
- Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada
- From abstract: This report contains the analysis of the southern part of the Canadian Shield and the subsurface of the southern interior platform where they comprise two Archean cratons and three Early Proterozoic collisional orogens.
- Area Adjacent to the Turkey Creek Caldera, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
- From introduction: This report supplements similar reports prepared for the four 7.5-minute quadrangles that cover the Turkey Creek caldera and geologic map of the caldera.
- 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.
- Bedrock Geology of the Paducah 1°x2° CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri
- The following report interprets the geologic history of the Paducah quadrangle, focusing on depositional and tectonic evolution, particularly tectonic events that influenced sedimentation.
- The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization
- From introduction: The purpose of this study is to establish a stratigraphic framework of the Bisbee Group in the Tombstone Hills, and to use this stratigraphy to unravel the complex history of folding, faulting, intrusion, and mineralization.
- Burial and Thermal History of the Paradox Basin, Utah and Colorado, and Petroleum Potential of the Middle Pennsylvanian Paradox Formation
- From abstract: This is a report on the burial and thermal history of the Paradox basin in Utah and Colorado, and the petroleum potential of the middle Pennsylvanian Paradox Formation.
- Cambrian Through Mississippian Rocks of the Powder River Basin, Wyoming, Montana, and Adjacent Areas
- From abstract: This report describes Cambrian through Mississippian rocks in the Powder River Basin representing five depositional sequences that reflect both the biological evolution and the tectonic development of western North America.
- Carbon Dioxide in Mississippian Rocks of the Paradox Basin and Adjacent Areas, Colorado, Utah, New Mexico, and Arizona
- From abstract: This report is about six gas samples that were obtained from the Mississippian Leadville Limestone in the McElmo field, Colorado, and the Lisbon field, Utah. These samples were recorded to contain a high reading of carbon dioxide and the report investigates these results.
- The Chemical Analysis of Argonne Premium Coal Samples
- A report about methods used to determine concentrations of 67 elements in 8 argonne premium coal samples.
- 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.
- Chronology of Late Cretaceous Igneous and Hydrothermal Events at the Golden Sunlight Gold-Silver Breccia Pipe, Southwestern Montana
- A report about gold mineralization at the Golden Sunlight breccia pipe, southwestern Montana, is related to emplacement of Late Cretaceous alkali-calcic rhyolite and subsequent collapse of the Belt Supergroup wallrock and rhyolite in the pipe.
- 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.
- Coastal Sedimentation Along a Segment of the Interior Seaway of North America, Upper Cretaceous Baxter Shale, and Blair and Rock Springs Formations, Rock Springs Uplift, Southwest Wyoming
- A report which examines the sedimentary rocks deposited along a segment of the west coast of the interior seaway of North America in southwest Wyoming during the late Santonian and early Campanian subages of the Late Cretaceous Epoch.
- Colorado Yule Marble—Building Stone of the Lincoln Memorial
- A report about the quality and consistency of the Colorado Yule marble mined in Marble, Colorado.
- Comparison of the Cretaceous-Tertiary Boundary Impact Events and the 0.77-Ma Australasian Tektite Event: Relevance to Mass Extinction
- A report that discusses the interpretation of impact shock evidence found in the K-T boundary sections and discusses the constraints imposed by the Australasian tektites and microtektites on the role of the 180-km Chicxulub crater in mass extinction.
- Complete Bouguer and Isostatic Residual Gravity Maps of the Anadarko Basin, Wichita Mountains, and Surrounding Areas, Oklahoma, Kansas, Texas, and Colorado
- From abstract: This report contains the complete Bouger and isostatic residual gravity maps of the Anadarko basin, Wichita Mountains, and surrounding areas on parts of Oklahoma, Kansas, Texas and Colorado that were compiled using gravity data from 11,023 stations.
- Correlation of the West Canyon, Lake Point, and Bannock Peak Limestones (Upper Mississippian to Middle Pennsylvanian), Basal Formations of the Oquirrh Group, Northern Utah and Southeastern Idaho
- The following report presents detailed lethologic and conodont biostratigraphic data from four measured sections in the lower part of the Oquirrh Group in the Oquirrh Mountains of Utah and the Deep Creek and Samaria Mountains of Idaho.
- The Crummies Member (New Name) of the Pennsylvanian Breathitt Formation, Eastern Kentucky—Its Distribution and Biostratigraphy
- A report about the Crummies Member of the Breathitt Formation which is a marine unit archaically called the Cannelton Limestone located in the Kanawha River valley of West Virginia.
- 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.
- Distribution of Benthic Foraminifers (>125 µm) in the Surface Sediments of the Arctic Ocean
- A report which discusses the distribution of benthic foraminifers in surface sediment samples from 49 box cores collected by the U.S. Geological Survey.
- The Distribution of Rare-Earth Elements in Minerals of the Monazite Family
- A report about rare-earth metals located inside minerals of the monazite family.
- Economic geology of the aluminum phosphate zone on property owned by the American Agricultural Chemical Company, land-pebble phosphate district, Florida
- This report presents all analytical data on the aluminum phosphate zone on lands owned by the American Agricultural Chemical Co. (A. A. C. Co.), and is one of a series of reports on lands of the companies active in the Land-Pebble Phosphate district.
- Engineering Geology Applied to the Design and Operation of Underground Coal Mines
- A report which discusses in detail how the disciplines of geology and geotechnology, also known as engineering geology, apply to exploration, design, and operation of underground coal mines.
- Environmental Considerations of Active and Abandoned Mine Lands: Lessons from Summitville, Colorado
- A report about some of the environmental impacts of the Summitville open-pit mine that was abandoned after 1992.
- Environmental Studies of Mineral Deposits in Alaska
- A report about metal necessary for economic or industrial development and how the metals are toxic to plants, animals, and humans.
- [Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters W and X]
- From abstract: Bulletin W is about the deformation of the Mesozoic Franciscan Complex of the Eastern Santa Maria basin in California. Bulletin X is about the regional thermal maturity of the surface rocks of the mentioned basin as well as the Santa Barbara-Ventura basin area in California.
- [Evolution of Sedimentary Basins/Onshore Oil and Gas Investigations--Santa Maria Province: Chapters Y and Z]
- From abstract: A complex Neogene history characterizes the offshore Santa Maria basin and the northwest margin of the western Transverse Ranges, California. This history includes the transition from subduction to a transtensional and then transpressional plate boundary, including about 900 of clockwise rotation of the western Transverse Ranges. This report uses seismic reflection data to document the geometry of structures that accommodated this deformation and offshore well data to date and correlate the sediments which were affected by the different tectonic episodes.
- [Evolution of Sedimentary Basins--Paradox Basin: Chapters C and D]
- From abstract: The report for document C is about the tectonic trends of the northern part of the Paradox Basin of southeastern Utah and southwestern Colorado, as derived from Landsat multispectral scanner imaging and geophysical and geologic mapping. The report for document D is about an uncontrolled X-band airborn radar-image mosaic that was compiled for the western three-fifths of the Moab 1° x 2° quadrangle of southeastern Utah and southwestern Colorado.
- [Evolution of Sedimentary Basins--San Juan Basin: Chapters J and K]
- From introduction to each respective report: Report J summarizes the results of several studies concerning the stratigraphy and sedimentology of uppermost Jurassic to lowermost Upper Cretaceous rocks in the San Juan basin and adjacent areas. Report K describes using X-ray diffraction techniques to determine the occurrence and distribution of clay minerals in the upper part of the Brushy Basin Member and in the Burro Canyon Formation in the Four Corners area.
- Facies Analysis, Genetic Sequences, and Paleogeography of the Lower Part of the Minturn Formation (Middle Pennsylvanian), Southeastern Eagle Basin, Colorado
- From abstract: Siliciclastic and minor carbonate rocks of the lower part of the Middle Pennsylvanian Minturn Formation of north-central Colorado were deposited in alluvial-fan, braidplain, Gilbert-delta, shoreline, and paralic, and offshore-marine environments. These strata can be divided into twelve genetic sequences that are generally bounded by transgressive surfaces of erosion or paralic flooding surfaces, and are characterized by thin and thick transgressive units. This report examines the paleogeography of this area.
- Feasibility Study of Material-Balance Assessment of Petroleum from the New Albany Shale in the Illinois Basin
- A report about which intends to determine the feasibility of conducting a material-balance assessment of petroleum within a sedimentary basin.
- Fife Peak Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
- From abstract: The information presented in this report supplements the geologic map of the Fife Peak quadrangle and supports ongoing investigations of the evolution of the Turkey Creek caldera.
- Fluid Inclusions and Biomarkers in the Upper Mississippi Valley Zinc-Lead District: Implications for the Fluid-Flow and Thermal History of the Illinois Basin
- A report about the fluid inclusions in the upper Mississippi valley zinc-lead district. It discusses the consequences of fluid flow.
- Fluvial Architecture of the Lower Cretaceous Lakota Formation, Southwestern Flank of the Black Hills Uplift, South Dakota
- From introduction This report describes large-scale depositional units referred to as architectural elements, interpreted from outcrops of three distinct fluvial sandstone units of the Lakota Formation in the southwestern Black Hills area of Custer and Fall River Counties, South Dakota. These fluvial deposits formed near the end of an episode of continental deposition that began when the Jurassic Sundance sea regressed from the region and ended when the Early Cretaceous Skull Creek sea encroached from the north in Albian time.
- The Frontier Formation and Associated Rocks of Northeastern Utah and Northwestern Colorado
- From abstract: The Frontier Formation of the Mancos Group in northeastern Utah and northwesternmost Colorado (proposed new rank designations; formerly known as the Frontier Sandstone Member of the Mancos Shale) consists of several facies of marine and nonmarine rocks of Late Cretaceous (Turonian) age that grade eastward into totally marine rocks in easternmost Utah and northwestern Colorado.
- Gazetteer of Planetary Nomenclature 1994
- A report about nomenclature related to planets in the solar system. It contains detailed information about all names of topographic and albedo features on planets and satellites.
- Geochemical, Biogeochemical, and Sedimentological Studies of the Green River Formation, Wyoming, Utah, and Colorado
- A report about new geochemical, biogeochemical, and sedimentological data gathered from the depositional basins of the Green River Formation.
- Geochemical Signatures of Silver and Gold Deposits, Tonopah 1° x 2° Quadrangle, Nevada: Description and Applications to Exploration
- The following report presents geochemical data results of 34 elements in 951 samples of altered and mineralized rock samples from mines, prospects, dumps, and drillholes in the Tonopah quadrangle, Nevada.
- Geochemical Survey of the Craig Study Area--Craig and Dixon Entrance Quadrangles and the Western Edges of the Ketchikan and Prince Rupert Quadrangles, Southeast Alaska
- The following report documents results taken from a reconnaissance geochemical survey that was conducted in the northwest-trending Alexander terrane, Gravina-Nutzotin overlap assemblage, and Taku terrane in southeast Alaska in the Craig and Dixon Entrance quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles.
- Geochemical Survey of the Valdez 1° x 3° Quadrangle, South-Central Alaska
- The following report follows a geochemical survey and its findings in the Valdez quadrangle in south-central Alaska.
- Geochemistry, Mineralogy, and Geochronology of the U.S. Virgin Islands
- A report about the geochemical and mineralogic study of the U.S. Virgin Islands indicates the presence of a previously undocumented Sn-Pb and precious metals.
- Geochemistry of Mariano Lake-Lake Valley Cores, McKinley County, New Mexico
- From abstract: The primary goal of the U.S. Geological Survey-Bureau of Indian Affairs drilling project in the Upper Jurassic Morrison Formation in McKinley County, New Mexico, was to better understand the relationship between host-rock stratigraphy and uranium mineralization. As part of this project, geochemical studies of approximately 280 samples from 8 cores and 1 outcrop were undertaken; samples from 4 of the cores show uranium enrichment. Geochemical relationships between samples of weathered outcrop, oxidized core, reduced (unmineralized) core, and ore-bearing core were contrasted by comparison of element abundances.
- Geologic Controls of Deep Natural Gas Resources in the United States
- A report about the natural gas drilling frontier in deep sedimentary basins. Papers presented here are intended to introduce the petroleum community to a set of geologic tools that may be used to predict deep undiscovered natural gas accumulations.
- 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.
- Geologic Investigations of the 1986 Marryat Creek, Australia, Earthquake: Implications for Paleoseismicity in Stable Continental Regions
- A report regarding geologic investigations of the 1986 Marryat Creek, Australia, Earthquake, and implications for paleoseismicity in Stable Continental Regions.
- Geologic Investigations of the 1988 Tennant Creek, Australia, Earthquakes: Implications for Paleoseismicity in Stable Continental Regions
- From introduction: This report summarizes the results of our efforts to document the timing of the last prehistoric movement on the faults that ruptured during the 1988 Tennant Creek earthquake sequence.