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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.
Date:
1995
Creator:
Keith, Terry E. C.
System:
The UNT Digital Library
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.
Date:
1993
Creator:
Dalrymple, G. Brent; Izett, Glen A.; Snee, Lawrence W. & Obradovich, John D.
System:
The UNT Digital Library
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.
Date:
August 1954
Creator:
Thompson, M. E.; Ingram, Blanche & Gross, E. B.
System:
The UNT Digital Library
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."
Date:
October 1956
Creator:
Feinstein, H. I.
System:
The UNT Digital Library
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.
Date:
December 1950
Creator:
Jaffe, Elizabeth B.
System:
The UNT Digital Library
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.
Date:
November 1956
Creator:
Hurley, P. M. & Fairbairn, H. W.
System:
The UNT Digital Library
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."
Date:
October 5, 1962
Creator:
Emerick, W. L.; Snyder, R. F. & Hoover, D. L.
System:
The UNT Digital Library
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."
Date:
1943
Creator:
Nutting, P. G.
System:
The UNT Digital Library
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.
Date:
1994
Creator:
Berger, Byron R.
System:
The UNT Digital Library
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.
Date:
1993
Creator:
Scott, Richard W., Jr.; Detra, Pamela S. & Berger, Byron R.
System:
The UNT Digital Library
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.
Date:
1960
Creator:
Ray, Richard G.
System:
The UNT Digital Library
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."
Date:
September 1954
Creator:
Gottfried, David; Senftle, F. & Waring, C.
System:
The UNT Digital Library
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.
Date:
August 1957
Creator:
Larsen, E. S., Jr.; Gottfried, David; Jaffe, H. W. & Waring, C. L.
System:
The UNT Digital Library
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."
Date:
July 1955
Creator:
Lyons, J. B.; Gottfried, D.; Smith, W. L.; Jaffe, H. W. & Waring, C. L.
System:
The UNT Digital Library
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.
Date:
May 1954
Creator:
Chapman, Randolph W.; Gottfried, David & Waring, Claude L.
System:
The UNT Digital Library
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.
Date:
January 1953
Creator:
Stieff, L. R. & Erickson, E. S., Jr.
System:
The UNT Digital Library
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.
Date:
August 5, 1955
Creator:
Vickers, Rollin C.
System:
The UNT Digital Library
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.
Date:
July 1951
Creator:
Nelson, R. A.; Sharp, William N. & Stead, Frank W.
System:
The UNT Digital Library
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.
Date:
August 1953
Creator:
Moxham, Robert Morgan
System:
The UNT Digital Library
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.
Date:
August 1953
Creator:
Moxham, R. M.
System:
The UNT Digital Library
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.
Date:
August 1958
Creator:
Moxham, R. M.
System:
The UNT Digital Library
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.
Date:
July 1952
Creator:
Moxham, Robert Morgan
System:
The UNT Digital Library
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.
Date:
1984
Creator:
Spechler, Rick M.
System:
The UNT Digital Library
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.
Date:
1948
Creator:
Goldich, Samuel S. & Bergquist, Harlan R.
System:
The UNT Digital Library