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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.
1995 Midnite Mine Radiation Survey
Abstract: During the week of September 4, 1995, personnel from the U.S. Bureau of Mines conducted a Ra-226 survey at the Midnite Mine. One hundred thirty measurements were made on a rectangular grid with 150-m spacings. Concurrently, Shepherd Miller, Inc., took gross gamma readings in gR/h at the same grid points. In addition, the USBM collected 17 soil samples to be analyzed for radium, thorium, and potassium. The results of this survey are summarized in this report.
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.
Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs
"The program concerning Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs was entitled in FY76 with the objective of validating the application of acoustic emission (AE) to monitor nuclear reactor pressure-containing components during operation to detect cracking."
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.
Airborne radioactivity survey of the Miller Hill area, Carbon County, Wyoming
Aerial image shows the result of an airborne radioactive survey over an area of 65 square miles in the vicinity of Miller Hill, Carbon County, Wyoming with the approximate location of eleven radioactivity anomalies found. Text describes methods used and discusses the anomalies.
Appendix A: A/E Flaw Characterization Electronic Drawings No. 0790-00 Through 0790-06
Eighteen electronic drawings detailing hardware from the sensor through the two console racks for the acoustic emission instrument system.
Appendix A. Station Reliability Tables
"The appendix contains daily and monthly tabulations of running time for each station" monitoring earthquake activity in the Western Ohio - Indiana region. (p. A1)
Appendix B: Arrival Time Data
"This appendix contains phase arrival information for local and near-regional events which have been well recorded by the Anna Seismic Network." (p. B1)
Appendix B: Software
Dataset documenting the software programs used in the acoustic emission (AE) instruments systems developed under the U. S. Nuclear Regulatory Commission (NRC) / Pacific Northwest Laboratory (PNL) AE program.
Application of Field Measurements and Computer Modeling to Evaluate Deep Mine Shaft Stability in Northern Idaho
Abstract: Researchers at the U.S. Bureau of Mines have developed personal-computer-based data acquisition, instrumentation, and mine visualization and modeling techniques to evaluate a mine accessway in a deep hard-rock mine in northern Idaho. These techniques were applied to a mine shaft in a large silver mine that has been in operation for many years. A very deep, rectangular, timber-supported shaft extending to depths exceeding 2.3 km (7,500 ft) had been deforming continuously as a result of nearby mining, resulting in operational problems. Preliminary visual observations and rock and support monitoring confirmed that severe diagonal distortion was occurring. Extensive field measurements and data analysis confirmed initial observations, provided insights into the cause of deformation, and defined a general approach to structural modeling. Computer analysis of the problem was initiated by developing a three-dimensional model of the terrain. This represented a volume of rock approximately 80 km3 (40 x 1010 ft) and an area on the surface surrounding the mine 9 km2 (3 square miles). Based on this model, a three-dimensional, finiteelement analysis was conducted to establish boundary conditions for sequentially more detailed two- and three-dimensional submodels of the shaft area. Results from the computer study are being used to develop new approaches to mine design and to provide design guidelines for deep mine accessways subject to severe rock-mass loading conditions.
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.
Beach and Borrow Site Sediment Investigation for a Beach Nourishment at Ocean City, Maryland
Report describing the methodology used to sample and analyze sediment at Ocean City, Maryland as part of a beach nourishment project. During the project, sediment was moved from borrow sites to construct parts of the beach area; both the borrow sites and native beach were tested.
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 Biology and Population Status of Marine Turtles in the North Pacific Ocean
From objectives and scope of work: The objective of this report is to provide a comprehensive review of the biology and population status of sea turtles potentially subject to entanglement in North Pacific high-seas driftnet fisheries. The report will assist National Marine Fisheries Service efforts to assess the impacts of the driftnet fisheries on threatened and endangered sea turtle populations.
Birds of the Kilbuck and Ahklun Mountain Region, Alaska
Summary of the birds of the Kilbuck and Ahklun Mountain region, including geographical distribution, population status, migration habits, nesting habitat, and zoogeography.
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.
Burns Harbor, Indiana, Monitoring Study, Volume 1: Overview of Approach and Results
From introduction: The program's objective is to acquire information through intensive monitoring of coastal projects in an effort to improve project purpose and attainment, design procedures, construction methods, and operation and maintenance techniques.
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.
Catch and Effort from Hawaii's Longline Fishery Summarized by Quarters and Five Degree Squares
This report provides quarterly and yearly summaries of Hawaii's pelagic longline catch (numbers of fish) and effort (hooks) reported by five-degree (latitude by longitude) squares based on the National Marine Fisheries Service longline logbook program. Species summarized include albacore, bigeye tuna, yellowfin tuna, striped marlin, blue marlin, black marlin, swordfish, mahimahi, and wahoo.
Changing Oceans and Changing Fisheries: Environmental Data for Fisheries Research and Management
The following report is the proceedings of a workshop convened at NOAA's Pacific Fisheries Environmental Group in Pacific Grove, California, on July 16-18 1996, to examine the uses of environmental data for fisheries.
Characterization of Dredged River Sediments in 10 Upland Disposal Sites of Alabama
Abstract: The U.S. Bureau of Mines, Tuscaloosa Research Center, in cooperation with the U.S. Army Corps of Engineers under interagency Agreement No. 14-09-0078-1510, conducted a comprehensive sampling program of 10 upland disposal sites along the Alabama, Black Warrior, and Tombigbee River systems in Alabama. Samples from each site were characterized according to particle size, chemical analysis, mineralogical content, and potential end use. Additionally, samples were subjected to the Toxic Characteristic Leachate Procedure to determine the presence of potentially harmful heavy metals. Based on the results of these studies, each sample was determined to have properties amenable for use as aggregate in general-purpose portland cement concretes and certain asphalt concrete applications.
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.
Coal Reserves of the Boltsfork Quadrangle, Kentucky: A Coal Recoverability Study
Abstract: "This report presents a U.S. Bureau of Mines study that incorporates coal mining factors, cola recovery factors, and economic factors into the definition of an economically recoverable coal resource. The relationship between these factors to the Energy Information Administration's estimate of U.S. coal resources--the "Demonstrated Reserve Base"--is discussed. The Boltsfork 7 1/2-minute quadrangle in eastern Kentucky was selected as the stud area. Results indicate that of the original 280.2 M tons of resource in the quadrangle, only 99.8 M tons (35.6%) is recoverable at a mining cost of $25 per ton or less" (p. 1).
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.
A Compilation of Historical Monk Seal, Monachus schauinslandi, Counts
The following document is meant to facilitate an analysis and review of historical counts of the Hawaiian monk seal. Provided here are tables ordered on an island-by-island or atoll-by-atoll basis, beginning in the early 1800s and on through the 1980s.
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.
Computer Analysis of Geochemical Data of Stream Sediment and Waters of the Montrose 1° X 2° Quadrangle, Colorado
The following preliminary report is a computer analysis of HSSR data from the Montrose 1x2 Quadrangle, Colorado.
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.
Data Dictionary and Discussion for the Midnite Mine GIS Database
Abstract: A geographic information system (GIS) database has been developed by the U.S. Bureau of Mines (USBM) for the Midnite Mine and surroundings in northeastern Washington State (Stevens County) on the Spokane Indian Reservation. The mine is an open pit uranium mine which has been inactive since 1981. The GIS database was compiled to serve as a repository and source of historical and research information on the mine site. The database supported USBM hydrological and reclamation research on the mine site. The database also will be used by the Bureau of Land Management and the Bureau of Indian Affairs (as well as others) for environmental assessment and reclamation planning for future remediation and reclamation of the site. This report describes the data in the GIS database and their characteristics. The report also discusses known backgrounds on the data sets and any special considerations encountered by the USBM in developing the database. Most of the database also is planned to be available to the public as a two-CD-ROM set, although separately from this report.
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.
Dust Control Considerations for Deep-Cut Mining when Utilizing Exhaust Ventilation and a Scrubber
Abstract: The U.S. Bureau of Mines conducted a series of laboratory tests to investigate the effectiveness of using a flooded-bed scrubber with exhaust ventilation in deep-cut faces of up to 12.2 m in length. An experimental test program to determine the impact on respirable dust levels resulting from changes in face airflow, curtain setback distance, operator positioning, and operating parameters of the external spray system on the miner was completed. Gravimetric sampling was conducted in the immediate return and at three sampling locations on the off-curtain side of the entry. Statistically significant differences in dust levels on the order of 0.5 to 1.2 mg/m3 were observed between specific sampling locations and changes in several test parameters. Several of the statistically significant relationships were found at the inby operator position, which is the least desirable of the operator locations that were tested. The relative effectiveness of the dust control at the other sampling locations was not severely impacted with the scrubber operating. Dust control was the primary focus of this research; results indicated that a flooded-bed scrubber and exhaust ventilation can be a viable system for extracting deep cuts up to 12.2 m in length. The impact on methane was not evaluated.
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.
Estimation of Sea Turtle Take and Mortality in the Hawai'i-Based Longline Fishery, 1994-96
The following report provides documents of estimates of provided annual reports concerning sea turtle morality takes in the Hawai'i-based longline fishery, between the years 1994 to 1996.
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