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Controlled Atmospheres for Spectrochemical Analysis
The following report describes preliminary investigations on the use of controlled atmospheres, discussing the method of semiquantitative spectrographic analysis used in conjunction with the final gas jet design.
Date:
June 1956
Creator:
Annell, C. S.
System:
The UNT Digital Library
Tectonically Controlled Fan Delta and Submarine Fan Sedimentation of Late Miocene Age, Southern Temblor Range, California
From introduction: The objectives of this report are to (1) document the stratigraphic framework of the Santa Margarita Formation and part of the Monterey Shale in the southern Temblor Range, (2) interpret the environments of deposition and depositional processes of the above units, and (3) evaluate the influence of tectonism on Santa Margarita sedimentation, with special attention given to testing the hypothesis of Berry and others (1968).
Date:
1989
Creator:
Ryder, Robert T. & Thomson, Alan
System:
The UNT Digital Library
Geological Survey Research, 1965: Chapter A
Report summarizing results of research conducted by the U.S. Geological Survey during fiscal year 1965. It provides an overview of the economic and scientific work of the organization.
Date:
1965
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library
Laccolith Complexes of Southeastern Utah: Time of Emplacement and Tectonic Setting - Workshop Proceedings
This report summarizes much of the materials presented at the workshop and provides an extensive list of selected references pertaining to geochronology and tectonics of the Colorado Plateau to facilitate further research.
Date:
1998
Creator:
Friedman, Jules D. & Huffman, A. Curtis, Jr.
System:
The UNT Digital Library
Selected Annotated Bibliography of the Uranium Geology of Igneous and Metamorphic Rocks in the United States and Territories
"This bibliography is an annotated list of selected reports that were publicly available as of May 31, 1956, pertaining to the uranium content and/or radioactivity of igneous and metamorphic rocks and minerals in the United States, Alaska, and Hawaii."
Date:
July 1956
Creator:
Curtis, Diane
System:
The UNT Digital Library
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1975
The following document provides a list of publications about geology which relates to nomenclatural changes.
Date:
1976
Creator:
Cohee, George V. & Wright, Wilna B.
System:
The UNT Digital Library
Revision of the Documentation for a Model for Calculating Effects of Liquid Waste Disposal in Deep Saline Aquifers
Abstract: Details of additions and modifications to a computer code described in an earlier report entitled "A model for calculating effects of liquid waste disposal in deep saline aquifers,: USGS WRI 76-61, NTIS-PB256 903/AS are documented. These additions and modifications include free water surface, vertical recharge, equilibrium controlled linear absorption and a first order irreversible rate reaction. These, plus additional modifications, make this model more adaptable to general hydrologic problems and those involving waste disposal with simple chemical reactions.
Date:
July 1979
Creator:
Intera Environmental Consultants
System:
The UNT Digital Library
Selected Annotated Bibliography of the Uranium Geology of Igneous and Metamorphic Rocks in the United States and Territories
From introduction: This bibliography is an annotated list of selected reports that were publicly available as of May 31, 1956, pertaining to the uranium content and/or radioactivity of igneous and metamorphic rocks and minerals in the United States.
Date:
July 1956
Creator:
Curtis, Diane
System:
The UNT Digital Library
The Geological Survey's Work on the Geology of Uranium and Thorium Deposits
From abstract: The Geological Survey has been studying the geology of uranium and thorium continuously since 1939, when it began a comprehensive investigation of the vanadium-uranium deposits of the Colorado Plateau. Greatly increased demand for uranium arising from the advent of controlled fission in 1942 resulted in widening of the study in 1944 to include other possible sources and in further expansion on behalf of the U. S. Atomic Energy Commission since 1947. The wide variety of materials investigated in this study are embraced by five somewhat arbitrary groups of related types of deposits as follows: (1) Igneous rocks, pegmatites, veins, and related deposits; (2) Deposits in sandstone of carnotite, copper-uranium, and other minerals; (3) Other consolidated sedimentary rocks; (4) Placers; and (5) Natural fluids.
Date:
1952
Creator:
Butler, Arthur P., Jr.
System:
The UNT Digital Library
A Dictionary of Geographic Positions in the United States
From introduction: For several years the Division of Topography of the United States Geological Survey has been engaged in compiling positions determined within the United States which are believed to be of sufficient accuracy for use in the preparation of its maps. This compilation has been found extremely useful in the office, and it is believed that its usefulness will be greatly extended by placing it before the public. This list comprises between 9,000 and 10,000 positions. To publish it in extenso, with descriptions of the stations, their latitudes and longitudes, the distances and azimuths to neighboring stations, and the methods of determination, would extend this bulletin beyond all reasonable limits. To avoid making too bulky a volume, it has been decided to publish merely the latitudes and longitudes, with abbreviations indicating the authority, and references to the publications in which other data relating to the positions may be found.
Date:
1895
Creator:
Gannett, Henry
System:
The UNT Digital Library
Summary of the Research Work of the Trace Elements Section, Geochemistry and Petrology Branch, for the Period April 1, 1948- December 31, 1950
From introduction: "This report summarizes the research work of the Trace Elements Section, Geochemistry and Petrology Branch, from the organization of the Section in April 1948 to December 31, 1950." Investigation of radioactive materials and investigation of methods for analysis of radioactive materials is included.
Date:
January 1951
Creator:
Rabbitt, John C.
System:
The UNT Digital Library
Program of Study for the Carnitite Ores of the Colorado Plateau
Report discussing a geological study of the mineralogy of the carnotite ores of the Colorado Plateau. The report reviews the work done during the 1948 field season and proposes work to be done during the 1949 season.
Date:
March 24, 1949
Creator:
Stieff, Lorin R.
System:
The UNT Digital Library
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.
Date:
1993
Creator:
Du Bray, Edward A.
System:
The UNT Digital Library
Summary of the Research Work of the Trace Elements Section Geochemistry and Petrology Branch for the Period July 1 - September 30, 1951
Report summarizing the research done by the Geochemistry and Petrology branch of the Trace Elements Section during the period from July 1 - September 30, 1951. Research includes mineralogic and petrologic investigations of radioactive rocks, minerals, and ores, as well as investigations of chemical, spectrographic, and radiometric methods of analysis to be applied to radioactive materials such as uranium, thorium, and their compounds.
Date:
February 1952
Creator:
Rabbitt, John C.
System:
The UNT Digital Library
Selected Papers on Uranium Deposits in the United States
From foreword: The six papers included in this report were prepared in an attempt to summarize briefly, and make available to the public, part of the information concerning uranium deposits that is in unpublished reports of work done by the U. S. Geological Survey under the auspices of the Manhattan Engineer District, and later, the U. S. Atomic Energy Commission.
Date:
May 1952
Creator:
Kaiser, E. P.; King, Robert U.; Wilmarth, V. R.; Stugard, Frederick, Jr.; Wyant, Donald G.; Gott, Garland B. et al.
System:
The UNT Digital Library
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.
Date:
1996
Creator:
Stanton, Mark R.; Wanty, Richard B.; Lawrence, Errol P. & Briggs, Paul H.
System:
The UNT Digital Library
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.
Date:
1999
Creator:
Osterman, Lisa E.; Poore, Richard Z. & Foley, Kevin M.
System:
The UNT Digital Library
Manganese Deposits of Mexico
From abstract: Manganese has been reported from 335 deposits in 20 of the 30 States and Territories of Mexico. The production of manganese ore prior to 1942, according to published figures, amounted to about 54,000 tons. For the year 1942 production rose to 35,000 tons, for 1943 to 70,503 tons, and for 1944 to 80,671 tons; but for 1945 it dropped to a little less than 52,000 tons, and during 1946 it continued to drop. Up to the end of 1941 Chihuahua had produced about half the manganese ore from Mexico; San Luis Potosi produced about 17 percent, and Baja California and Zacatecas each about 10 percent. In 1942 Baja California became the chief producer; Durango, Chihuahua, and Zacatecas each yielded somewhat less. During that year the ore came from 76 deposits, of which only 30 yielded more than 500 tons each.
Date:
1948
Creator:
Trask, Parker D. & Cabo, José RodrÍguez, Jr.
System:
The UNT Digital Library
Factors Controlling Rare-Metal Concentrations in the Sea
From abstract: "The factors controlling the concentrations of 13 metals (Zn, Cu, Pb, Bi, Cd, Ni, Co, Hg, Ag, Cr, Mo, W, V) in sea water have been studied."
Date:
April 1955
Creator:
Krauskopf, Konrad B.
System:
The UNT Digital Library
[Evolution of Sedimentary Basins--Paradox Basin: Chapters C and D]
From abstract: The report for document C is about the tectonic trends of the northern part of the Paradox Basin of southeastern Utah and southwestern Colorado, as derived from Landsat multispectral scanner imaging and geophysical and geologic mapping. The report for document D is about an uncontrolled X-band airborn radar-image mosaic that was compiled for the western three-fifths of the Moab 1° x 2° quadrangle of southeastern Utah and southwestern Colorado.
Date:
1994
Creator:
Friedman, Jules D.; Case, James E.; Simpson, Shirley L. & Heller, Joan S.
System:
The UNT Digital Library
Problems in the Disposal of Acid Aluminum Nitrate High-Level Radioactive Waste Solutions by Injection into Deep-Lying Permeable Formations
The following report discusses the problems of injection and the possibility of chemical reactions occurring upon contact between earth materials and typical high-level acid aluminum nitrate wastes, along with proposed methods of disposal of such wastes by injection into deep-lying, brine-saturated permeable beds (salaquifers).
Date:
October 1957
Creator:
Roedder, Edwin
System:
The UNT Digital Library
Geology of the southern Guadalupe Mountains, Texas
From Abstract: "This report deals with an area of 425 square miles in the western part of Texas, immediately south of the New Mexico line. The report describes the geology of the area, that is, the nature of its rocks, tectonics, and surface features, and the evidence that they give as to the evolution of the area through geologic time. Incidental reference is made to the geology of surrounding regions in order to place the area in its environment."
Date:
1948
Creator:
King, Philip B.
System:
The UNT Digital Library
The model '54 transmission and reflection fluorimeter for the determination of uranium, with adaptation to field use
A report discussing the model '54 transmission and reflection fluorimeter for the determination of uranium, with adaptation to field use
Date:
April 1955
Creator:
Parshall, Ernest E. & Rader, Lewis F.
System:
The UNT Digital Library
Pegmatites and Associated Rocks in the Newry Hill Area, Oxford County, Maine
A report about the occurrence, distribution, and quantities of beryl and other strategic minerals in pegmatites located in the Newry Hill area, Maine.
Date:
November 1954
Creator:
Shainin, Vincent E. & Dellwig, Louis F.
System:
The UNT Digital Library