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Summary and Analysis of Cultural Resource Information on the Continental Shelf from the Bay of Fundy to Cape Hatteras: Final Report, Volume 4 -- Management

Description: This is the fourth volume in a four volume set on the study of archaeological and historical shipping on the Atlantic Continental Shelf. This volume focuses on management, methods, and materials for use in the study.
Date: 1979
Creator: Roberts, Michael E.
Partner: UNT Libraries Government Documents Department

A Summary and Analysis of Cultural Resource Information on the Continental Shelf from the Bay of Fundy to Cape Hatteras: Final Report, Volume 1 -- Physical Environment

Description: This study covers the well researched Atlantic Continental Shelf of North America. The focus of this study analyzes the process of shore-face retreat, role of erosion, and creation of conceptual models of the fate of subaerial surfaces.
Date: 1979
Creator: Moir, Randall
Partner: UNT Libraries Government Documents Department

Solid Minerals Reclamation Handbook

Description: A document by the Bureau of Land Management that details the organization's long-term goals to shape, stabilize, and treat disturbed areas so as to make productive use of the land.
Date: unknown
Creator: United States. Department of the Interior Bureau of Land Management.
Partner: UNT Libraries Government Documents Department

National Atlas of the United States

Description: This is the website for the National Atlas, which provides a comprehensive, maplike view into the enormous wealth of geospatial and geostatistical data collected for the United States. It includes many detailed, interactive maps of the nation on a wide variety of subjects such as the environment, history, government, population, and climate, as well as fully documented digital cartographic datasets and articles. The website was removed from service on September 30, 2014.
Date: September 22, 2014
Creator: United States. Department of the Interior. Geological Survey
Partner: UNT Libraries Digital Projects Unit

Federal Offshore Statistics, 1993. Leasing, exploration, production, and revenue as of December 31, 1993

Description: This document contains statistical data on the following: federal offshore lands; offshore leasing activity and status; offshore development activity; offshore production of crude oil and natural gas; federal offshore oil and natural gas sales volume and royalties; revenue from federal offshore leases; disbursement of federal offshore revenue; reserves and resource estimates of offshore oil and natural gas; oil pollution in US and international waters; and international activities and marine minerals. A glossary is included.
Date: December 31, 1994
Creator: Francois, D. K.
Partner: UNT Libraries Government Documents Department

Noncontacting NDE for materials characterization

Description: This report describes research performed at the Idaho National Engineering Laboratory from May 1983 to September 1995, funded by the Interior Department`s Bureau of Mines, on ultrasonic methods (particularly noncontacting methods) for nondestructive evaluation and process control. The abilities of ultrasonic techniques to measure microstructural features in metals, ceramics, and composite materials were demonstrated. A major emphasis in this project was the development of noncontacting ultrasonic techniques, based on laser generation and detection of elastic waves, for process monitoring and control in high-temperature, harsh environments without close coupling to the material being processed. Laser ultrasonic measurements were utilized for in situ process monitoring during ceramic sintering, high temperature annealing, and molten metal solidification.
Date: October 1, 1995
Creator: Telschow, K. L.
Partner: UNT Libraries Government Documents Department

Federal offshore statistics: 1995 - leasing, exploration, production, and revenue as of December 31, 1995

Description: This report provides data on federal offshore operations for 1995. Information is included for leasing activities, development, petroleum and natural gas production, sales and royalties, revenue from federal offshore leasing, disbursement of federal revenues, reserves and resource estimates, and oil pollution in U.S. and international waters.
Date: July 1, 1997
Creator: Gaechter, R. A.
Partner: UNT Libraries Government Documents Department

Polyphosphazene membranes for metal ion separations

Description: The Idaho National Engineering Laboratory (INEL), under sponsorship by the Bureau of Mines, evaluated the use of polyphosphazene-based polymer membranes for chemical separations. Synthetic membranes based on phosphazene inorganic polymers offer the promise of new industrial chemical separation technologies that are more energy efficient and economical than traditional phase change separation processes and extraction techniques. The research focused on the separation of metal ions from aqueous solutions. The polyphosphazene membranes were also tested for gaseous separations, results of which are presented in a separate Report of Investigation. Historically, membranes used for chemical separation have been prepared from organic polymers. In general, these membranes are stable only at temperatures less than 100{degrees}C, within narrow pH ranges, and in a very limited number of organic media. As a result, many organic- based membranes are unsuitable for industrial applications, which often involve harsh environments. In recent years, membrane research has focused on ceramic and metal membranes for use in the adverse environments of separation applications. These membranes are suitable for gas and liquid sieve separation applications, where molecules may be separated based on their molecular size. These membranes are not effective where additional selectivity is needed. A membrane that separates on the basis of solubility and that can perform separations in adverse environments is needed, and this need motivated the investigation of polyphosphazene membranes.
Date: May 1, 1996
Creator: Stone, M. L.
Partner: UNT Libraries Government Documents Department

Laser-assisted electrochemistry

Description: The effect of laser irradiation on electrodeposition processes has been investigated. These studies demonstrated that the addition of laser irradiation to an electroplating process can dramatically enhance plating rates and current efficiencies, as well as improve the morphology of the resultant electrodeposit. During the course of these investigations, the mechanism for the laser enhancement of electrodeposition processes was determined. Experimental evidence was obtained to show that laser irradiation of the substrate results in increased metal ion concentrations at the surface of the electrode due to a laser-induced Soret effect. The laser-induced Soret effect has important implications for laser-assisted electrochemical processing. The increase in the surface concentration of ions allows efficient electrodeposition from dilute solutions. As such, laser- assisted electrodeposition may develop into an environmentally conscious manufacturing process by reducing waste and limiting worker exposure to toxic chemicals.
Date: May 1, 1995
Creator: Glenn, D. F.
Partner: UNT Libraries Government Documents Department

Gas separation performance of inorganic polyphosphazene membranes

Description: The objective of this research program was to develop, characterize, and evaluate the potential of phosphazene polymers for separations performed in harsh environments. The program was divided into two general areas, gas separations and metal ion separations involving aqueous solutions. Each of these two areas is the subject of a topical report; this report deals with the gas separations. Throughout the world, there is rapidly growing interest in membrane separation as an energy efficient way to separate components of a process stream or waste stream, such as in desalination of water or clarification of fruit juices. In some cases membranes perform separations that are otherwise very difficult, such as breaking azeotropes. In the early stages of the work reported here, there was interest in separating acid gases from process flue gases and in natural gas sweetening. As a result, research was undertaken to characterize membrane performance. First, a pure gas test apparatus was developed to determine the permeabilities of a number of gases through various membranes at a variety of temperatures. Second, an automated mixed gas test cell was developed in which membranes could be exposed to mixtures of pairs of gases. Each of these approaches has its advantages and each will be discussed separately.
Date: July 1, 1995
Creator: Stone, M. L.
Partner: UNT Libraries Government Documents Department

Seismicity and focal mechanisms for the Southern Great Basin of Nevada and California in 1990

Description: For the calendar year 1990, the Southern Great Basin seismic network (SGBSN) recorded about 1050 earthquakes in the SGB, as compared to 1190 in 1989. Local magnitudes, M{sub L}, ranged from 0.0 for various earthquakes to 3.2 for an earthquake on April 3, 1990 5:47:58 UTC, 37.368{degrees} North, 117.358{degrees} West, Mud Lake, Nevada quadrangle. 95% of those earthquakes have the property, M{sub L} {le} 2.4. Within a 10 km radius of the center of Yucca Mountain, the site of a potential national, high-level nuclear waste repository, one earthquake with M{sub L} = 0.6 was recorded at 40-Mile Wash. The estimated depth of focus of this earthquake is 3.8 km below sea level. Other, smaller events may have also occurred in the immediate vicinity of Yucca Mountain, but would have been below the detection threshold (M{sub L}{approx}0.0 at Yucca Mountain). Focal mechanisms are computed for seventeen earthquakes in the Nevada Test Site (NTS) and in the SGB west of the NTS for the year 1990. Solutions are mostly strike-slip, although normal slip is observed for a hypocenter at Stonewall Flat, Nevada, and reverse slip is observed for a hypocenter at Tucki Mountain, California. The average direction of the focal mechanism P-axes is North 47{degrees} East, with nearly horizontal inclination, and the average direction of the T-axes is North 42{degrees} West, with nearly horizontal inclination, consistent with a regional tectonic model of active northwest extension during the Holocene epoch.
Date: December 31, 1991
Creator: Harmsen, S. C.
Partner: UNT Libraries Government Documents Department

Preliminary hydrogeologic assessment of boreholes UE-25c No. 1, UE-25c No. 2, and UE-25c No. 3, Yucca Mountain, Nye County, Nevada; Water-resources investigations report 92-4016

Description: The purpose of this report is to characterize the hydrogeology of saturated tuffaceous rocks penetrated by boreholes UE-25c No. 1, UE-25c No.2, and UE-25c No. 3. These boreholes are referred to collectively in this report as the C-holes. The C-holes were drilled to perform multiwell aquifer tests and tracer tests; they comprise the only complex of closely spaced boreholes completed in the saturated zone at Yucca Mountain. Results of lithologic and geophysical logging, fracture analyses, water-level monitoring, temperature and tracejector surveys, aquifer tests, and hydrochemical sampling completed at the C-hole complex as of 1986 are assessed with respect to the regional geologic and hydrologic setting. A conceptual hydrogeological model of the Yucca Mountain area is presented to provide a context for quantitatively evaluating hydrologic tests performed at the C-hole complex as of 1985, for planning and interpreting additional hydrologic tests at the C-hole complex, and for possibly re-evaluating hydrologic tests in boreholes other than the C-holes.
Date: December 31, 1993
Creator: Geldon, A. L.
Partner: UNT Libraries Government Documents Department

Simulated water-level declines caused by withdrawals from wells J-13 and J-12 near Yucca Mountain, Nevada

Description: Simulations were done to examine the effects of ground-water withdrawals from wells J-13 and J-12 near Yucca Mountain, Nevada. These simulations were done using a two-dimensional finite-element model of the subregional groundwater flow system of Yucca Mountain and vicinity. Eight different withdrawal rates ranging from 36 gallons per minute (the minimum average for well J-13) to 1,390 gallons per minute (the maximum for both J-13 and J-12 combined) were used in conjunction with specific-yield values of 0.001, 0.005, and 0.01. Drawdown was analyzed for each withdrawal rate by plotting contours of drawdown after 10 years of simulated withdrawals, and by plotting drawdown as a function of time for model locations corresponding to well J-13, well J-12, one-half mile south of well J-12, 2 miles north of the town of Amargosa Valley, and about 5 miles northwest of the Ash Meadows area. Because the range in simulated withdrawal rate was large, the range in resultant drawdown was correspondingly large. The simulated drawdowns after 10 years for the withdrawal rate of 90 gallons per minute from well J-13, based on a specific yield of 0.01 (which was considered to be a minimum value for the aquifer system) were 0.95 foot at well J-13, 0.53 foot at Amargosa Valley, and 0.16 foot northwest of Ash Meadows.
Date: December 1, 1992
Creator: Czarnecki, J. B.
Partner: UNT Libraries Government Documents Department

Trace Elements Reconnaissance in Florida : Section 1, Radioactivity of Some Florida Sands ; Section 2, Radioactivity of Phosphates and Other Rocks in Florida

Description: The following document contains two reports providing results from reconnaissance missions in Florida. These missions tested the radioactivity in Florida sands and the radioactivity in phosphates and rocks found in Florida.
Date: September 1945
Creator: Slaughter, A. L.
Partner: UNT Libraries Government Documents Department

The Occurrence of Xenon

Description: This report is the second in the series of reports carried by the Geological Survey on rare or uncommon elements and their possible sources. The report discusses xenon, an element belonging in a group of elements known as the inert gases, characterized by its lack of reactivity.
Date: May 1945
Creator: Fleischer, Michael
Partner: UNT Libraries Government Documents Department

Forty-Niner, King Solomon Ridge, and West End Claims Near Clancy, Jefferson County, Montana

Description: Abstract: Secondary minerals of the uranite group occur in dense quartz veins and in altered aplitic granite along and near the crest of the east-trending ridge about one mile west of Clancy, Montana. Brief examination suggests that the radioactive minerals are erratically distributed, but a more thorough study of the area will be made by the Geological Survey during the coming field season.
Date: August 1950
Creator: Klepper, M. R.
Partner: UNT Libraries Government Documents Department

Milford Wind Corridor Project Millard and Beaver Counties, Utah

Description: A report which analyses the environmental consequences of the Milford Wind Corridor Project. The information inside the paper assists the Bureau of Land Management in evaluating whether to grant a right-of-way (ROW) on public lands.
Date: October 15, 2008
Creator: United States. Department of the Interior Bureau of Land Management.
Partner: UNT Libraries Government Documents Department

An Evaluation of Water-Quality Data Obtained at Four Streamflow Daily-Record Stations in Idaho

Description: From introduction: This study is limited to four U.S. Geological Survey stream-flow stations located in Idaho (figure 1). The 6 to 22 years of stations were assembled and evaluated through use of computer techniques for data plotting and regression analysis developed by Steele (1972). Objectives of this evaluation were were (1) to show which parameters were highly correlative with the levels of specific conductance and(or) discharge and (2) to see if any changes in overall chemical character of the stream had occurred over the long term.
Date: August 1973
Creator: Dyer, Kenneth L.
Partner: UNT Libraries Government Documents Department