Technical Report Archive & Image Library (TRAIL) - 79 Matching Results
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- 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.
- An Apparatus for the Study of Thermoluminescence from Minerals
- This report discusses an apparatus that has been constructed to record the thermoluminescence of a mineral in the form of a powder or a single crystal at temperatures from -100 C to +400 C.
- Beryl Resources of New Hampshire
- From Introduction: "The primary purpose of this work was to summarize and bring up to date the information on beryl resources as gained from investigations during 1942-45, to examine in detail certain beryl-bearing pegmatites discovered and developed in recent years, and to study other pegmatites and groups of pegmatites known or suspected to contain beryl."
- Chattanooga Shale and Related Rocks of Central Tennessee and Nearby Areas : An Abstract
- The following report covers the study of the Chattanooga shale and Maury formation found between the Nashville Basin and the surrounding Highland Rim.
- Coal Geology of the White Oak Quadrangle, Magoffin and Morgan Counties, Kentucky
- From abstract: The White Oak quadrangle lies near the western edge of the eastern Kentucky coalfield and includes approximately 59 square miles of parts of Magoffin and Morgan Counties, Ky. The outcropping rocks are equivalent to most of the Breathitt formation of Pennsylvanian age. The regional southeast dip of the rocks is interrupted by the Irvine-Paint Creek fault, the Caney anticline, the Grape Creek syncline, and the Johnson Creek fault.
- A Comparison of Plants and Soils as Prospecting Guides for Uranium in Fall River County, South Dakota
- A report about a comparison of the uranium content of plants and soils as prospecting guides for uranium made for areas of known mineralization in Fall River County, South Dakota.
- Contact of the Burro Canyon Formation with the Dakota Sandstone, Slick Rock District, Colorado, and Correlation of the Burro Canyon Formation
- Report discussing the contact and weathering of the Burro Canyon formation shales and Dakota sandstone as well as other connections of the Burro Canyon formation.
- The Crystal Structures of Three New Vanadium Oxide Minerals
- This report analyzes the characteristics of three vanadium-uranium ores of the Colorado Plateau by prevalence of a number of low-valence vanadium oxide minerals, usually occurring as fine-grained mixtures. The ores being analyzed are haggite, doloresite, and duttonite.
- Determination of Thorium in the Parts Per Million Range in Rocks
- Abstract: "A procedure for the determination of thorium in the concentration range of 0.2 to 10 parts per million ThO2 in felsic or mafic rocks. Thorium is extracted by mesityl oxide and purified by iodate precipitation from nitric acid medium containing tartaric acid and hydrogen peroxide. The thorium is determined spectrophotometrically with thoron from meso-tartaric acid medium."
- The Development of Botanical Methods of Prospecting for Uranium on the Colorado Plateau
- The following report covers detailed investigations on botanical methods of prospecting for uranium that have been developed on the Colorado Plateau by the U.S. Geological Survey.
- Dielectric Constant and Electrical Resistivity of Natural-State Cores
- The following report covers measurements of electrical resistivity and dielectric constant that were made on parts of 27 cores from the Morrison formation in the Colorado Plateau uranium province as part of a program to obtain basic data on the physical properties of the rock in and near uranium-mineralized zones.
- Distribution and Thickness of Salt in the Paradox Basin of Southwestern Colorado and Southeastern Utah, A Preliminary Report
- The following report covers investigation work done on the distribution of thick deposits of salt that had occurred in the Paradox member of the Hermosa formation of Pennsylvanian age in an area nearly 12,000 square miles of southwestern Colorado and southeastern Utah.
- Distribution and thickness of salt in the Paradox basin of southwestern Colorado and southeastern Utah: a preliminary report
- A report regarding the distribution and thickness of salt in the paradox basin of southeastern colorado and southeastern Utah. This report concerns work done on behalf of the Division of research of the U.S. Atomic Energy Commission.
- Distribution of Elements in the Salt Wash Member of the Morrison Formation in the Jo Dandy Area, Montrose County, Colorado
- The following report covers a chemical study that was made of the Salt Wash member of the Morrison formation of Jurassic age in the Jo Dandy area, Montrose County, Colorado in 1954. The chemical study was made to investigate the distribution of elements in the host rocks with emphasis on the pattern of variation as related to the position of known ore bodies, and to determine average concentrations of some of the elements in the major rock types.
- Doloresite, A New Vanadium Oxide Mineral from the Colorado Plateau
- The following report studies the occurrence of the vanadium oxide mineral, doloresite, that has been identified in 11 mines on the Colorado Plateau.
- Effects of Radon in Drill Holes on Gamma-Ray Logs
- A report about drill holes in uranium in the Todilto limestone of Late Jurassic age near New Mexico which does not yield duplicate gamma-ray logs when probed at different times.
- Electrical Properties of Sandstones of the Morrison Formation
- The following report covers the study of electrical properties of the Morrison formation in the Uravan mineral belt of the Colorado Plateau to determine if there are anomalous variations in these properties in and near zones of uranium-vanadium minerals which might serve as a target for geophysical prospecting.
- The Elk Ridge-White Canyon Channel System, San Juan County, Utah: Its Effect on Uranium Distribution
- The following report covers the study of the area described in this report that is part of the White Canyon mining district, San Juan County, Utah. Upon this investigation, uranium deposits were discovered and analyzed.
- The Geochemistry of Uranium in Apatite and Phosphorite
- The following report is preliminary in nature, discussing and analyzing traces of uranium in apatite and phosphorite.
- Geochemistry of Uranium in Phosphorites and Black Shales of the Phosphoria Formation
- Report discussing the geochemistry of uranium in phosphorites and black shales of the phosphoria formation, with the assumption that the immediate source of the uranium in the Phosphoria formation was the ocean.
- Geologic Investigations of Radioactive Deposits
- The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas favorable for the future production of uranium and other radioactive ores. This report covers the period from December 1, 1956 to May 31, 1957.
- Geologic Investigations of Radioactive Deposits, Semiannual Progress Report: December 1, 1956 - May 31, 1957
- From foreword: This report is a statement of progress during a six-month period on investigations of radioactive materials in the United States.
- Geologic Names of North America Introduced in 1936-1955
- A report about geologic names. It contains new names, old names, and changes to names.
- Geology and Ore Deposits of the Kern River Uranium Area, Kern County, California
- The following report covers investigations on the geology of the Kern River uranium area in Kern County, California, as well as the small uranium ore deposits erratically distributed along fractures.
- Geology and ore deposits of the Kern River uranium area, Kern County, California
- Discussing the geology and ore deposits of the Kern River Uranium Area, located in Kern County, California
- Geology and Uranium Deposits of Monument Valley, San Juan County, Utah
- From introduction: This report contains the results of a detailed geological and uranium deposits study made of the Monument Valley.
- Geology of the Aluminum Phosphate Zone in the Lakeland Highlands Area and Clark James-South Ridgewood Tracts, Land-Pebble Phosphate District, Polk County, Florida
- The following report is based mainly on information obtained from lithologic and gamma-ray logs of drill holes in the Lakeland Highlands area and Clark James-South Ridgewood.
- Geology of the USGS and Rainier Tunnel Areas, Nevada Test Site
- The following report covers geological studies on the USGS and Rainier tunnel areas in the Nevada Test Site.
- Interim report on diamond-drilling exploration in the Bull Canyon district, Montrose and San Miguel counties, Colorado
- This report sumarizes the results of the US geological survey exploration in the Bull Canyon district from October 1955 to April 1956
- Isolation and Identification of an Ester from a Crude Oil
- Abstract: "A dioctylphthalate has been isolated from a crude oil by means of adsorption column chromatography. The ester was identified by means of elemental analysis, refractive index, and its infrared adsorption spectrum. Saponification of the isolate and examination of the resultant alcohol by means of infrared adsorption spectra led to the conclusion that the ester is a branched chain dioctylphthalate. This is the first reported occurrence of an ester in crude petroleum."
- Laboratory Study of Uranium-Bearing Carbonaceous Shale and Impure Coal from Goose Creek District, Cassia County, Idaho
- The following report describes the petrography of uranium-bearing carbonaceous shale and a non-uranium-bearing impure coal from two of the drill cores that were used to explore the underground extent of the east-central part of the Goose Creek district.
- Lead-Alpha Age Determinations of Granitic Rocks from Alaska
- Abstract: "Lead-alpha activity age determinations were made on zircon from seven granitic rocks of central and southeastern Alaska. The results of the age determinations indicate two periods of igneous intrusion, one about 95 million years ago, during the Cretaceous period, and another about 53 million years ago, during the early part of the Tertiary. The individual ages determined on zircon from 2 rocks from southeastern Alaska and 1 from east-central Alaska gave results of 90, 100, and 96 million years; those determined on 4 rocks from central Alaska gave results of 47, 56, 58, and 51 million years."
- Mineral Deposits of Central America
- From introduction: This report is based on investigations carried on by the Geological Survey (U. S. Department of the Interior) under the auspices of the Interdepartmental Committee on Scientific and Cultural Cooperation (U. S. Department of State) and the Foreign Economic Administration. The function of the last two agencies is presently carried on by the International Cooperation Administration. Roberts is responsible for the text of this report and for the compilation of the geologic map. He was in Central America from January to April 1942 under a program of scientific and technical cooperation with the American Republics sponsored by the Department of State, and mapped manganese deposits in Costa Rica and manganese and antimony deposits in Honduras.
- Mineralogical Classification of Uranium-Vanadium Deposits of the Colorado Plateau
- Abstract: The uranium deposits of the Colorado Plateau contain suites of minerals that are the result of different stages of oxidation of deposits with different elemental composition. A classification based on composition and stage of oxidation is presented.
- Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States
- From introduction: The purpose of this paper is to summarize and review some of the recent mineralogic information relevant to uranium-bearing veins in the United States, as well as to describe some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits.
- Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States
- The following report summarizes and reviews some of the recent [1957] mineralogic information relevant to uranium-bearing veins in the United States, as well as describing some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits. This paper is a chapter of a larger and more comprehensive report entitled, "Geology of Uranium-Bearing Vein Deposits in the United States".
- Notes on the Moenkopi Formation in the Salt Anticline Region of Colorado and Utah
- The following report covers notes on the Moenkopi formation of Triassic age that is widely exposed in the salt anticline region in the southeastern Utah and southwestern Colorado. Within this report is the mapping of four members of contrasting lithology in the Moenkopi in the salt anticline region.
- An Occurrence of Rhenium, Associated with Uraninite in Coconino County, Arizona
- From introduction: Twenty-nine samples of sedimentary rocks of Triassic age from the Sun Valley uranium mine in northern Arizona were analyzed spectrographically, and 11 of these samples contained 0.005 to 0.1 percent of the rare metallic element, rhenium.
- Petrographic Study of Sandstone of the Inyan Kara Group (Cretaceous) and Associated Rocks in the Black Hills, Wyoming and South Dakota
- The following report covers the Petrographic study of Early Cretaceous age sandstone beds in the Fall River formation and the Fuson-Lakota formations, as well as Late Jurassic age beds in the underlying Unkpapa and Morrison formations along the western side of the Black Hills.
- Petrographic study of sandstone of the Inyan Kara group (Cretaceous) and associated rocks in the Black Hills, Wyoming and South Dakota
- A report regarding petrographic study of sandstone of the Inyan Kara group and associated rocks in the Black hills, Wyoming and South Dakota
- Phosphate Deposits in Northern Alaska
- The following report covers analytical work on sedimentary phosphate rock deposits discovered on the Arctic Slope of Alaska during the geological investigation of Naval Petroleum Reserve No. 4 between 1944 and 1953.
- Photogeologic Maps of the Iris SE and Doyleville SW Quadrangles, Saguache County, Colorado
- Photogeolgic maps showing the distribution of sedimentary rocks of Jurassic and Cretaceous age in the Iris and Doyleville quadrangles.
- Photogeologic maps of the Miles Ranch and Love Ranch quadrangles, Fremont and Natrona Counties, Wyoming
- These maps were compiled primarily from 1/60,000-scale vertical aerial photographs taken in June 1954.
- Preliminary geologic map of the Verdure 4 SW quadrangle, San Juan County, Utah
- Preliminary geologic map of the Verdure 4 SW quadrangle, San Juan County, Utah
- Preliminary Report on the Stratigraphy of the Park City and Phosphoria Formations and an Analysis of the Distribution of Phosphate in Utah
- The following report presents a preliminary discussion of the stratigraphy of the Park City and Phosphoria formations with special emphasis on the phosphatic parts, and to discuss the distribution of phosphate in Utah.
- Preliminary Report on the Stratigraphy of the Park City and Phosphoria Formations and an Analysis of the Distribution of Phosphate in Utah
- "The Purpose of this paper is to present a preliminary discussion of the stratigraphy of the park city and phosphoric formations with special emphasis on the phosphatic parts and to discuss the distribution of phosphate in Utah. The Mississippian deposits are discussed only briefly because of the lack of new data concerning them"
- 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).
- Radioactive Rare-Earth Deposit at the Scrub Oaks Mine, Morris County, New Jersey
- The following report studies a rare-earth deposit in the Scrub Oaks iron mine, Morris County, New Jersey, that was mapped and sampled in the 1955.
- Radioactive rare-earth deposit at the Scrub Oaks Mine, Morris County, New Jersey
- Discussing a radioactive rare-earth deposit at the Scrub Oaks Mine, in Norris County, New Jersey
- Reconnaissance for Radioactive Minerals in the Southern Part of Brazil
- From introduction: This report describes the results of reconnaissance for radioactivity of rocks, exclusive of coal, in the States of Rio de Janeiro, Sao Paulo, Parana, Santa Catarina and Rio Grande do Sul during the years 195 through 1956. Reports on reconnaissance and detailed studies of uraniferous coal are being prepared for publication. This report concerns work performed by the Brazilian National Nuclear Energy Commission and the United States Geological Survey (on behalf of the United States Atomic Energy Commission), and it is published with the permission of these agencies.