Technical Report Archive & Image Library (TRAIL) - 105 Matching Results
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- 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.
- 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.
- 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.
- 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.
- The Sedimentary Carbonate-Hosted Giant Bayan Obo REE-Fe-Nb Ore Deposit of Inner Mongolia, China: A Cornerstone Example for Giant Polymetallic Ore Deposits of Hydrothermal Origin
- A report which describes the overall characteristics of Bayan Obo ore deposit. The paper examines Bayan Obo as a cornerstone example of giant ore deposits of hydrothermal origin.
- The Seaman Volcanic Center—A Rare Middle Tertiary Stratovolcano in Southern Nevada
- A report about the Seaman volcanic center which is a composite, middle Tertiary stratovolcano in southern Nevada.
- Problems with Applying Topographically Driven Flow to Genesis of the Upper Mississippi Valley Zinc-Lead District and to Fluid Flow in the Illinois Basin
- A report about how topographically driven ground-water flow and other processes that involve dewatering of basins fail to account for the temperatures indicated by fluid inclusion and sulfur isotope studies in the Upper Mississippi Valley zinc-lead district on the northern edge of the Illinois Basin.
- 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.
- 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.
- An Overview of Pleistocene and Holocene Inland Dunes in Georgia and the Carolinas--Morphology, Distribution, Age, and Paleoclimate
- A report about dunes which are vegetated, inactive, and are made of quartz.
- Paleomagnetic and 40Ar/39Ar Results from the Grant Intrusive Breccia and Comparison to the Permian Downeys Bluff Sill—Evidence for Permian Igneous Activity at Hicks Dome, Southern Illinois Basin
- A report about applying 40Ar/39Ar dating methods, along with other rock techniques, to determine the age of emplacement and the cooling history of the Grant intrusive breccia at Hicks dome in Illinois.
- 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.
- Hydrothermal Alteration in the Mount Hood Area, Oregon
- A report which describes the hydrothermal alteration of numerous outcrop samples collected in the vicinity of Mount Hood, as well as drill cuttings from 13 of the geothermal drill holes for which we were able to obtain sample splits.
- 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.
- Rockfalls and Debris Avalanches in the Smugglers Notch Area, Vermont
- A report about rockfalls and debris avalanches on the southern approach to Smuggles Notch in Vermont.
- 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.
- Isotopic Ages and Stratigraphy of Cenozoic Rocks of the Marysvale Volcanic Field and Adjacent Areas, West-Central Utah
- A report about the Marysvale volcanic field that lies at the east end of the Pioche-Marysvale igneous belt.
- Source Rock Potential of the Lower Part of the Mississippian St. Louis Limestone in South-Central Indiana
- A report about the carbonate-evaporite sequence of the lower part of the Mississippian St. Louis Limestone. There is organic rich strata that may be good to excellent hydrocarbon source rocks.
- Paleocene Vertebrates from Jabal Umm Himar, Kingdom of Saudi Arabia
- A report about fossils in Saudi Arabia. The report discusses locality, higher taxon, and specimens within the taxon from a given locality.
- 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.
- 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.
- Timing and Effect of Detachment-Related Potassium Metasomatism on 40Ar/39Ar Ages from the Windous Butte Formation, Grant Range, Nevada
- A report about studying volcanic rocks. It discusses faults, thermal, and chemical problems.
- Geology and Mineral Deposits of the Venezuelan Guayana Shield
- Abstract: The U.S. Geological Survey and the Corporación Venezolana de Guayana, Técnica Minera, C.A., conducted a cooperative mapping, exploration, and mineral resource estimation study in Venezuela from 1987 to 1992. The work was conducted in the Venezuelan Guayana Shield, an Archean to Early and Middle Proterozoic craton in southern and eastern Venezuela of almost 415,000 km2 that is mostly covered by jungle and savanna. Results obtained from this project contribute a new understanding of the geology and evolution of the Venezuelan Guayana Shield and the nature of its mineral occurrences. Personnel from Técnica Minera, C.A., were trained both in the field and in the office to conduct modern mineral exploration and geologic mapping and research programs. This five-year project was supported financially by the Corporación Venezolana de Guayana.
- 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.
- Sedimentological Descriptions and Depositional Interpretations, in Sequence Stratigraphic Context, of Two 300-Meter Cores from the Upper Cretaceous Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah
- The following report provides detailed analyses of two 300-meter cores from upper Turonian to lower Campanian strata of the Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah.
- Geology and Mineral Resources of the Hailey 1°x2° Quadrangle and the Western Part of the Idaho Falls 1°x2° Quadrangle, Idaho
- Report containing a series of chapters discussing the geologic and mineral resources of the Hailey Quadrangle and Western part of the Idaho Falls Quadrangle in Idaho.
- 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.
- Stratigraphy and Structure of the Seaman Range and Fox Mountain, Lincoln and Nye Counties, Nevada
- From introduction: This report describes the stratigraphy and structure of the Seaman Range in southeastern Nevada, consisting of three main structural blocks that are bounded by major normal faults and adjacent valley fills.
- Regional Potential of Selected Paleozoic Carbonate Units in the Northern Midcontinent for Undiscovered Mississippi Valley-Type Deposits
- From abstract: This report attempts to identify areas where geologic conditions for the Mississippi Valley-type (MVT) deposits are favorable.
- [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.
- Geology of Pre-Pennsylvanian Rocks in the Paradox Basin and Adjacent Areas, Southeastern Utah and Southwestern Colorado
- From abstract: This report is about the geology of pre-Pennsylvanian rocks in the Paradox basin and its adjacent areas--such as the Mississippian strata, the Upper Devonian rocks, and the Upper Cambrian--in southeastern Utah and southwestern Colorado.
- 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.
- Geology of the Pennsylvanian and Permian Cutler Group and Permian Kaibab Limestone in the Paradox Basin, Southeastern Utah and Southwestern Colorado
- From abstract: This report talks about the geology of the Pennsylvanian and Permian Cutler Group that consists of the lower Cutler beds, Cedar Mesa Sandstone, Organ Rock Formation, White Rim Sandstone, and De Chelly Sandstone. The report also talks about the Permian Kaibab Limestone in the Paradox Basin that overlays the Cutler.
- Submarine Landslides: Selected Studies in the U.S. Exclusive Economic Zone
- From the foreward: This report is meant to expand the knowledge behind what marine geologists call geohazards, submarine landslides.
- Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona
- From abstract: At the request of the U.S. Bureau of Land Management, approximately 19,300 acres of the Black Mountains North Wilderness Study Area (AZ-020-009) and 23,310 acres of the Burns Spring Wilderness Study Area (AZ-020-010) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to, collectively or individually, as the 'wilderness study area' or simply 'the study area'; any reference to the Black Mountains North or Burns Spring Wilderness Study Areas refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The study area is located in western Arizona, about 30 mi northwest of Kingman. There are no identified resources in the study area.
- Mineral Resources of the Warm Springs Wilderness Study Area, Mohave County, Arizona
- From abstract: At the request of the U.S. Bureau of Land Management, approximately 113,500 acres of the Warm Springs Wilderness Study Area (AZ-020-028/029) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to as the "wilderness study area" or "study area"; any reference to the Warm Springs Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested. This study area is located in west-central Arizona. The U.S. Geological Survey and the U.S. Bureau of Mines conducted geological, geochemical, and geophysical surveys to appraise the identified mineral resources (known) and assess the mineral resource potential (undiscovered) of the study area. Fieldwork for this report was carried out largely in 1986-1989.
- Mineral Resources of the Deep Creek Mountains Wilderness Study Area, Juab and Tooele Counties, Utah
- From abstract: The Deep Creek Mountains Wilderness Study Area (UT-020-060/UT-050-020) includes most of the Deep Creek Range of west-central Utah. The area is near the Utah-Nevada State line, south of Wendover, Utah, and northwest of Delta, Utah. Eleven areas of mineralized rock in and near the study area were evaluated by the U.S. Bureau of Mines. Four of these areas contain identified resources: (1) an indicated resource of 5,000 short tons of 16.5 ounces silver per short ton, 4.1 percent lead, 4.6 percent zinc, and 0.25 percent copper, at the Willow Springs area, which is almost surrounded by the study area in the northeast corner although it is not part of the study area; (2) an indicated gold resource of 774,000 short tons of 0.4 ounces per short ton and an inferred gold resource of 5.7 million short tons of 0.4 ounces per short ton in the Goshute Canyon area immediately east of the study area; (3) an indicated gold resource of 75,000 short tons of 0.22 ounces per short ton in the Queen of Sheba mine just west of the study area; and (4) an inferred gold resource of 3,800 short tons of 0.26 ounces per short ton in the Gold Bond area immediately east of the study area.
- Mineral Resources of the Cockscomb and Wahweap Wilderness Study Areas, Kane County, Utah
- Summary: At the request of the U.S. Bureau of Land Management, two wilderness study areas in southern Utah (fig. 1) were studied in order to appraise their identified mineral resources and assess their potential mineral resources. The areas studied are the Cockscomb (UT-040-275) Wilderness Study Area, 5,100 acres (8 square miles), and the Wahweap (UT-040-248) Wilderness Study Area, 70,380 acres (110 square miles), both in Kane County, Utah. In this report the areas studied are called "wilderness study areas," simply "study areas," or "Cockscomb area" or "Wahweap area," as appropriate. The Cockscomb area (fig. 1) lies along the steeply east-dipping East Kaibab monocline, and the Wahweap area, farther to the east, consists of flat-lying but gently folded rocks. These areas adjoin the Paria-Hackberry Wilderness Study Area (UT-040-247) to the west.
- Mineral Resources of the Coal Canyon, Spruce Canyon, and Flume Canyon Wilderness Study Areas, Grand County, Utah
- From abstract: The Coal Canyon (UT-060-1000), Spruce Canyon (UT-060-100D), and Flume Canyon (UT-060-100B) Wilderness Study Areas are in the Book Cliffs in Grand County, eastern Utah. Demonstrated coal reserves totaling 22,060,800 short tons, and demonstrated subeconomic coal resources totaling 39,180,000 short tons are in the Coal Canyon Wilderness Study Area. Also, inferred subeconomic coal resources totaling 143,954,000 short tons are within the Coal Canyon Wilderness Study Area. No known deposits of industrial minerals are in any of the wilderness study areas. All three of the wilderness study areas have a high resource potential for undiscovered deposits of coal and for undiscovered oil and gas.
- Mineral Resources of the Desolation Canyon, Turtle Canyon, and Floy Canyon Wilderness Study Areas, Carbon, Emery, and Grand Counties, Utah
- From abstract: In 1985, 1986, and 1988, the U.S. Bureau of Mines and the U.S. Geological Survey studied the Desolation Canyon (UT-060-068A), Turtle Canyon (UT-060-067), and Floy Canyon (UT-060-068B) Wilderness Study Areas, which are contiguous and located in Carbon, Emery, and Grand Counties in eastern Utah. The study areas include 242,000 acres, 33,690 acres, and 23,140 acres respectively. Coal deposits underlie the Desolation Canyon, Turtle Canyon, and Floy Canyon study areas.
- Mineral Resources of the Raymond Mountain Wilderness Study Area, Lincoln County, Wyoming
- From abstract: This report concerns the resource extraction potential of the Raymond Mountain Wilderness Study Area, which has no identified (known) mineral or energy resources.
- 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.
- Sedimentology, Mineralogy, Palynology, and Depositional History of Some Uppermost Cretaceous and Lowermost Tertiary Rocks Along the Utah Book and Roan Cliffs East of the Green River
- From abstract: This report analyzes the 4-5 million years of depositional history of the Upper Cretaceous Lower Tertiary Rocks along the Green River.
- Middle Cretaceous Stratigraphy on the South and East Sides of the Uinta Basin, Northeastern Utah and Northwestern Colorado
- From abstract: Middle Cretaceous rocks (Aptian to Coniacian) on the south side of the Uinta Basin include the nonmarine Cedar Mountain Formation and Dakota Sandstone and the lower part of the overlying marine Mancos Shale. This report examines the rocks contained within this area of the basin.
- 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.
- 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.
- Rustler Park Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
- From abstract: Information in this report supplements the geologic map of the Rustler Park quadrangle and supports ongoing investigations of the Turkey Creek caldera.
- Stanford Canyon Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
- From abstract: Information in this report supplements the geologic map of the Stanford Canyon quadrangle that provides chemical data, thin sections, and hand specimens for each of the samples collected in the quadrangle.
- Structural Context of Mid-Tertiary Mineralization in the Mammoth and San Manuel Districts, Southeastern Arizona
- From introduction: This study examines mid-Tertiary mineralization of the area in the context of both detachment and basin-range faulting.
- Landslides in Colluvium
- From introduction: This report describes the Delhi Pike area, which is an area of landsliding we believe to be representative of landslides in colluvium throughout the Cincinnati metropolitan area. The area has been the focus of several detailed studies reported in other chapters in this bulletin. The purpose of the report is to describe the physical setting and movement styles of the landslides and, thus, to provide a context for the more narrowly focused chapters that follow.