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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.
Abernathyite, a New Uranium Mineral of the Metatorbernite Group
A report about a new uranium mineral from the Fuemrol No. 2 mine, Emery County, Utah, named abernathyite.
The Absorption Spectra of Complexes of Uranium (VI) with Some [beta]-Diketones
Abstract: "The absorption spectra of the complexes of uranium (VI) with four [beta]-diketones were determined under various conditions of pH, concentration of uranium, and alcohol concentration. Under optimum conditions, the maximum molar absorptivity (31,200) is obtained using 2-furoyltri-fluoroacetone. This compares with about 4,000 and 19,000 for the thiocyanate and dibenzoylmethane complexes, respectively."
Abstracts of the Literature Synthesis of Apatites and Some Related Phosphates: Part 1
Report presenting abstracts and major findings from physiological, biochemical, soil chemical, geological, and mineral studies of the apatite group of minerals.
Abundance and Distribution of Uranium and Thorium in Zircon, Sphene, Apatite, Epidote, and Monazite in Granitic Rocks
The following report covers investigations of uranium and thorium discovered within host minerals in the earth's crust, zircon, sphene, apatite, epidote, and monazite. The object of this investigation has been to obtain an approximate measure of the abundance and distribution of uranium and thorium among these five mineral phases.
Additional Physical Property Data, U12g.01 Tunnel, Nevada Test Site, Nye County, Nev.
Introduction: "This report presents physical property analyses for 28 additional samples and is a supplement to Geological Survey Technical Letter: Area-12-1, which gave a brief summary of the geology, descriptive data on the tunnel, and X-ray, chemical, semiquantitative spectrographic analyses, and some physical properties determinations of samples collected in the U12g.01 tunnel."
Adsorbent Clays: Their Distribution, Properties, Production, and Uses
From Abstract: "This bulletin is a summary of present knowledge of the adsorbent or bleaching clays-their distribution, field and laboratory identification, physical and chemical properties, uses, quality, and value. Problems in the drying, treating with acids, and washing are discussed, and methods of testing and rating decolorizing efficiency are described."
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.
Aerial Photographs in Geologic Interpretation and Mapping
Abstract: Aerial photographs today are widely used to obtain both qualitative and quantitative geologic information; vertical aerial photographs are used almost to the exclusion of other types. Techniques and procedures described herein relate primarily to vertical photography.
Age Determination of Zircon Crystals From Ceylon
From Abstract: "Age determinations have been made on 21 crystals of gem quality zircon from Ceylon which are believed to have been derived from pegmatites of pre-Cambrian age."
Age Determinations of the Rocks of the Batholiths of Baja and Southern California, Sierra Nevada, Idaho, and the Coast Range of Washington, British Columbia, and Alaska
A report about the ages of the four great batholiths in the western United States.
Age Determinations on New Hampshire Granites
From abstract: "Age determinations by the Larsen method are reported for the four Paleozoic plutonic series of New Hampshire."
Age of the Boulder Batholith and Other Batholiths of Western Montana
Report presenting new data on the age of the Boulder, Philipsburg, and Idaho batholiths of western Montana.
An Air Concentrator for Very Low Grade Colorado Plateau Uranium Ores
Report discussing the use of an air concentrator on uraniferous sandstones for producing concentrates with over ten times the amount of uranium as original sandstone. A description of the concentrator, information regarding its operation, results of the concentration, information on the concentrator's applications, and a general summary are included.
Airborne and Ground Reconnaissance of Part of the Syenite Complex Near Wausau, Marathon County, Wisconsin
Report documenting the radioactive mineral resources found in Wisconsin during reconnaissance surveys, with descriptions of methods, findings, and recommendations regarding the minerals.
Airborne radioactivity survey of part of Saratoga NW quadrangle, Carbon County, Wyoming
"The accompanying map shows the results of an airborne radioactivity survey in 133 square miles of Saratoga NW quadrangle, Wyoming."
Airborne radioactivity survey of parts of Baggs SW and Baggs SE quadrangles, Carbon and Sweetwater Counties, Wyoming
A map of Baggs SW and Baggs SE quadrangles in Carbon and Sweetwater Counties, Wyoming, used in relation to an airborne radioactivity survey of parts of the Quadrangles.
Airborne radioactivity survey of parts of Sand Creek SW and Sand Creek SE quadrangles, Sweetwater County, Wyoming
"The accompanying map shows the results of an airborne radioactivity survey in 125 square miles of Sand Creek SW and Sand Creek SE quadrangles, Sweetwater County, Wyoming"
Airborne radioactivity survey of parts of Savery NW and Savery NE quadrangles, Carbon County, Wyoming
"The accompanying map shows the results of an airborne radioactivity survey in 266 squae miles of Savery NW and Savery NE quadrangles, Wyoming"
Airborne Radioactivity Survey of Parts of Savery SW and Savery SE Quadrangles, Carbon County, Wyoming
"The accompanying map shows the results of an airborne radioactivity survey in 222 square miles of Savery SW and Savery SE Quadrangles, Carbon County, Wyoming."
Airborne radioactivity survey of parts of the North and South Carolina Atlantic Ocean beach
Shows coastal areas of greater-than-average radioactivity.
Airborne radioactivity survey of portions of the Defiance Uplift and Carrizo Mountains, Apache County, Arizona
Aerial image shows the result of an airborne radioactive survey over an area of 940 square miles in Apache County, Arizona with the approximate location of radioactivity anomalies found. Text describes methods used and discusses the anomalies.
Airborne radioactivity survey of the Aspen Mountain area, Sweetwater County, Wyoming
Aerial image shows the result of an airborne radioactive survey over an area of 700 square miles in Sweetwater County, Wyoming with the approximate location of three radioactivity anomalies found. Text describes methods used and discusses the anomalies.
Airborne radioactivity survey of the Gulf of Mexico beach between Sanibel Island and Caladesi Island, Florida
Shows coastal areas of greater-than-average radioactivity.
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.
Airborne radioactivity survey of the Pumpkin Buttes area, Campbell and Johnson Counties, Wyoming
The accompanying map shows the results of an airborne radioactivity survey in an area of 800 square miles in Campbell and Johnson Counties, Wyoming.
Airborne Radioactivity Survey of the Red Desert Region, Sweetwater County, Wyoming
From abstract: An airborne radioactivity survey of a selected area in the Red Desert, Sweetwater County, Wyoming, containing outcrops of radioactive lignites and shales of known surface extent and uranium content, was flown on flight lines at three levels, respectively 250, 500, and 1,000 feet above the ground and spaced at one-quarter mile intervals. Measurements from three identical dual-channel radiation detectors were simultaneously recorded to obtain data at various distances from natural radioactive sources of known configuration. The radiation intensity measurements were fully corrected for all extraneous effects and were compiled as profiles of radiation intensity, as an isoradioactivity contour map, and as curves showing the relationship between radiation intensity and distance from the source.
Airborne radioactivity survey of the Tabernacle Buttes area, Sublette and Fremont Counties, Wyoming [cartographic material]
Aerial image shows the result of an airborne radioactive survey over an area of 670 square miles in Sublette and Fremont Counties, Wyoming with the approximate location of five radioactivity anomalies found. Text describes methods used and discusses the anomalies.
Airborne radioactivity survey of the West Lonetree area, Uinta County, Wyoming
Aerial image shows the result of an airborne radioactive survey over an area of 154 square miles in Uinta County, Wyoming with the approximate location of one radioactivity anomaly found. Text describes methods used and discusses the anomaly.
Airborne Radioactivity Surveys for Phosphate in Florida
Introduction: Deposits of phosphate in Florida, located beyond the limits of known producing areas, have been reported by prospectors and mining companies. Much of the information has been based upon prospecting and exploration which was undertaken many years ago and as a result the published data relating to the occurrence of these deposits are fragmentary, and few details relating to specific locations and extent are available.
Airborne Radioactivity Surveys for Phosphate in Florida
Report discussing airborne radioactivity surveys, aimed at finding uraniferous phosphate deposits, in ten areas of Florida. A subsequent ground investigation of two radioactivity anomalies out of eight was conducted. Information on radioactivity measurements for each area is given as well as conclusions.
Airborne Radioactivity Surveys in Geologic Exploration
The following report describes the use of airborne radioactivity surveying and analytical techniques in geologic exploration by examples of the analysis or evaluation of airborne data related to specific geologic settings. The airborne radioactivity surveying program was begun in 1949 by the U.S. Geological Survey to assist in uranium exploration.
Airborne Radioactivity Surveys in the Mojave Desert Region, Kern, Riverside, and San Bernardino Counties, California
From abstract: Airborne radioactivity surveys in the Mojave Desert region, Kern, Riverside, and San Bernardino counties were made in five areas recommended as favorable for the occurrence of radioactive raw materials: (1) Rock Corral area, San Bernardino County. (2) Searles Station area, Kern County. (3) Soledad area, Kern County, (4) White Tank area, Riverside and San Bernardino counties. (5) Harvard Hills area, San Bernardino County. Anomalous radiation was detected in all but the Harvard Hills area.
Altitude and Generalized Configuration of the Top of the Floridian Aquifer, St. Johns County, Florida
From introduction: This map shows the approximate altitude and configuration of the top of the Floridian aquifer...This map was prepared from geologic, geophysical, and drillers' logs on file with the Florida Bureau of Geology, U.S. Geological Survey, St. Johns River Water Management District, and from logs in published reports.
Aluminous Lateritic Soil of the Republic of Haiti, W.I.
From abstract: Aluminous lateritic soil containing as much as 50 percent of alumina (A120) Is found in several places in the Republic of Haiti. The largest deposits are on the Rochelois Plateau southwest of Miragoane on the Southern Peninsula. Mapping and drilling of the deposits indicate fifteen million long tons in place (dried basis). It is estimated that a minimum of 10 million long tons of this reserve is recoverable. The average chemical composition of this material is as follows: A1203, 46.8 percent; SiO2, 3.4 percent; T1O2, 2.8 percent; Fe20, 21.9 percent ; P206, 0.6 percent ; MnO5, 0.5 percent ; and loss on ignition, 24.1 percent. Other localities in which similar lateritic soil occurs are Beaumont in the Massif de la Hotte ; the vicinity of Savane Zombi in the Massif de la Selle ; and Savane Terre Rouge on the plateau northwest of Gonaives. In none of these regions were large deposits found.
The Aluminum Phosphate Zone in the Peace River Area, Land-Pebble Phosphate Field, Florida
Report discussing information on the aluminum phosphate zone of the Peace River area. At the time of the report, the first plant to treat aluminum phosphate was probably to be located in this area. Information on the geology of the area, weathering/erosion, mineralogy, occurrence and distribution of aluminum, chemical relations and variations of aluminum phosphate, relation of geologic features, mining plans, and tonnage/grade of the zone are included.
The Anadarko Basin (of parts of Oklahoma, Texas, Kansas, and Colorado)
Abstract: This report is a synthesis of published and unpublished data on the rocks of the Anadarko basin.
Analog Model Analysis of the North Coast Limestone Aquifers, Puerto Rico
This report presents an analysis of "three limestone aquifers on the north coast of Puerto Rico west of the RÍo de la Plata" using "analog modeling techniques."
Analog-Model Simulations for Secondary Canal Controls and Forward Pumping Water-Management Schemes in Southeast Florida
From purpose and scope: The purpose of this investigation is to evaluate, through electrical analog model simulation, the effects of two specific water-management proposals in Dade County. Proposal one is the installation of a secondary control on Snake Creek Canal and proposal two is the forward pumping scheme.
Analyses of Rocks with a Chapter on Analytic Methods Laboratory of the United States Geological Survey 1880 to 1896
A report which provides information about the analysis of rocks, minerals, ores, waters, sediments, coals, metals, and many more.
Analyses of Waters of the Yellowstone National Park With an Account of the Methods of Analyses Employed
A report about 43 different waters made up of geysers, hot springs, mud springs, cold springs, and surface waters found within the limits of Yellowstone Park.
An Analysis of Gravity Data in Area 12, Nevada Test Site
This report summarizes the gravity data of the Area 12, Nevada Test Site.
An Analysis of Salinity in Streams of the Green River Basin
Abstract: Dissolved-solids concentrations and loads can be estimated from streamflow records using a regression model derived from chemical analyses of monthly samples. The model takes seasonal effects into account by the inclusion of simple-harmonic time functions. Monthly mean dissolved-solids loads simulated for a 6-year period at U.S. Geological Survey water-quality stations in the Green River Basin of Wyoming agree closely with corresponding loads estimated from daily specific-conductance records. In a demonstration of uses of the model, an average gain of 114,000 tons of dissolved solids per year was estimated for 6-year period in a 70-mile reach of the Green River from Fontemelle Reservoir to the town of Green River, including the lower 30-mile reach of the Big Sandy River.
Analysis of Selected Benthic Communities in the Florida Everglades with Reference to Their Physical and Chemical Environment
From purpose and scope: The purpose of this investigation is to document the types of aquatic benthic organisms found within the Everglades and to determine the extent to which the chemical and physical character of surface water and bottom materials affect their distribution and community structure.
Analysis of Stream Quality in the Yampa River Basin, Colorado and Wyoming
From introduction: This report relates to the first of the above objectives by describing stream quality in the Yampa River basin through 1976, with particular emphasis on conditions from August 1975 through September 1976. The content of this report is, at times, relatively technical. This is intentional. The report is aimed not at planners and decision makers but rather at those persons assigned the task of having to design, implement, and interpret a river basin assessment. The techniques and procedures used to determine ambient stream quality in the Yampa River basin have been presented in detail so that their applicability to other river basins can be determined. For the planner and decision maker, the results presented in this report are summarized in less technical terms in phase-l (Steele and others, 1979) and phase-ll summary reports.
An Analysis of Stream Temperatures, Green River Basin, Wyoming
From abstract: This report presents a method for estimating temperatures of streams in the Green Water Basin, Wyoming.
Analysis of the August 14, 1980, Rainstorm and Storm Runoff to the South Platte River in the Southern Denver Metropolitan Area, Colorado
From purpose and scope: The purpose of this report is to present an analysis of the August 14, 1980, rainstorm in Denver, Colorado, and describe its effects on the South Platte River and six of its tributaries (figure 1).
Analysis of Three Tests of the Unconfined Aquifer in Southern Nassau County, Long Island, New York
This report presents the analysis of "data from three two-day aquifer tests of the unconfined aquifer (water-table_ aquifer in southern Nassau Count, Long Island, during the autumn of 1979.
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