On the Relation of the Laramie Molluscan Fauna to That of the Succeeding Fresh-Water Eocene and Other Groups (open access)

On the Relation of the Laramie Molluscan Fauna to That of the Succeeding Fresh-Water Eocene and Other Groups

A report about strata found in Utah and Wyoming which contains fresh water types of fossil molluscan forms which share some characteristics of the Laramie Group.
Date: 1886
Creator: White, Charles A.
Object Type: Report
System: The UNT Digital Library
A Geological Reconnaissance in Northwest Wyoming (open access)

A Geological Reconnaissance in Northwest Wyoming

A paper about the geography, topography, and stratigraphy in Wyoming.
Date: 1894
Creator: Eldrige, George Homans
Object Type: Report
System: The UNT Digital Library
Geology and Water Resources of the Northern Portion of the Black Hills and Adjoining Regions in South Dakota and Wyoming (open access)

Geology and Water Resources of the Northern Portion of the Black Hills and Adjoining Regions in South Dakota and Wyoming

Introduction: this paper, which supplements the report on the geology and water resources of the southern half of the Black Hills, published in 1901, is the result of studies made at intervals during the years 1899 to 1907.
Date: 1909
Creator: Darton, Nelson Horatio
Object Type: Report
System: The UNT Digital Library
Contributions to Economic Geology (Short Papers and Preliminary Reports), 1913: Part 2 -- Mineral Fuels (open access)

Contributions to Economic Geology (Short Papers and Preliminary Reports), 1913: Part 2 -- Mineral Fuels

From introduction: This report determines the geographic distribution and thickness of the bituminous shale, or oil shale, or tar shale of the Green River formation of the Uinta Basin in Colorado and Utah.
Date: 1915
Creator: Campbell, Marius R. & White, David
Object Type: Report
System: The UNT Digital Library
Lithologic Studies of Fine-Grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region (open access)

Lithologic Studies of Fine-Grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region

More than nine-tenths of the Upper Cretaceous rocks in northeastern Wyoming are fine-grained shales, mudstones, and calcareous marls. A comparative study of the mineralogy, chemical and mechanical composition, density and porosity, fissility, and lamination of samples of these rocks discloses several relations that throw light on the geologic history and structural deformation of the region, and perhaps on its oil and gas possibilities.
Date: 1930
Creator: Rubey, William Walden
Object Type: Report
System: The UNT Digital Library
Shorter Contributions to General Geology, 1929 (open access)

Shorter Contributions to General Geology, 1929

From introduction: This report describes the deposits of analcite in the Green River formation, to compare them with other similar deposits, and to present them with other similar deposits, and to present the observations and inferences that led him to explain them as alteration products of volcanic ash that fell into an ancient saline lake. The report also records the occurrence of several thin beds of sepiolite, or meerschaum, in the Green River formation and presents new data on the molds of saline minerals of the Green River formation whose determination affects directly the interpretation of the analcite and sepiolite deposits.
Date: 1930
Creator: Mendenhall, W. C.
Object Type: Report
System: The UNT Digital Library
The Significance of Geologic Conditions in Naval Petroleum Reserves No. 3, Wyoming (open access)

The Significance of Geologic Conditions in Naval Petroleum Reserves No. 3, Wyoming

From Introduction: The work on which this report is based consisted of detailed field and office studies which occupied the greater part of the summer of 1927. During this period mapping was done with plane table and telescopic alidade on a scale of 1 inch to 1,000 feet, and wells, faults, and outcrops within the productive part of the Teapot field were located in detail.
Date: 1931
Creator: Thom, W. T., Jr. & Spieker, Edmund M.
Object Type: Report
System: The UNT Digital Library
The Recognizable Species of the Green River Flora (open access)

The Recognizable Species of the Green River Flora

Abstract: The identification of new collections of fossil plants from the Green River formation of middle Eocene age made it necessary to reexamine the megascopic types of the Green River flora. This study resulted in the reassignment of some species and the rejection of such species as were based on fragmentary, indefinable specimens. The recent collections yielded 22 new species. Exclusive of the microscopic forms of thallophytes and pollens, the flora now numbers 135 megascopic species that are considered to be recognizable and distinctive. The new elements found in the flora do not alter the previously expressed opinion that the megascopic Green River flora lived in a warm-temperate well-watered environment.
Date: 1934
Creator: Brown, Roland W.
Object Type: Report
System: The UNT Digital Library
Geomorphology of the North Flank of the Uinta Mountains (open access)

Geomorphology of the North Flank of the Uinta Mountains

From introduction: The geologic record of the Tertiary period in the Green River Basin of southwestern Wyoming consists, in a broad way, of two quite different parts. The history of the first part, lasting through the Eocene epoch and perhaps on into the early Oligocene, was recorded in a thick series of sedimentary rocks of fluviatile and lacustrine origin. The history of the second part was recorded chiefly by successive stages of stream planation and stream trenching, but also in part by fluviatile sedimentation and, in certain localities, by glacial deposits. The first part of the record is virtually continuous, though its interpretation is by no means simple and obvious. The second part of the record is distinctly fragmentary, and the evidence the fragments provide is difficult to evaluate and to integrate.
Date: 1936
Creator: Bradley, Wilmot H.
Object Type: Report
System: The UNT Digital Library
Geology and Mineral Resources of the Randolph Quadrangle, Utah-Wyoming (open access)

Geology and Mineral Resources of the Randolph Quadrangle, Utah-Wyoming

From abstract: This report briefly describes the geology and mineral resources of the Randolph quadrangle, which covers an area of 892 square miles in northeastern Utah and southwestern Wyoming.
Date: 1941
Creator: Richardson, G. B.
Object Type: Report
System: The UNT Digital Library
Trace Elements Reconnaissance in South Dakota and Wyoming Preliminary Report (open access)

Trace Elements Reconnaissance in South Dakota and Wyoming Preliminary Report

The following report provides information that follows investigations of radioactivity in certain rocks found in Wyoming and South Dakota during the summer of 1945. Uranium is the principal element in this report with thorium as secondary.
Date: March 1946
Creator: Slaughter, A. L. & Nelson, John W.
Object Type: Report
System: The UNT Digital Library
The Gas Hills Uranium District and Some Probable Controls for Ore Deposition (open access)

The Gas Hills Uranium District and Some Probable Controls for Ore Deposition

A generalized geologic map shows the locations of the uranium mines and some of the many occurrences and prospects in the Gas Hills district. Included also are recently-mapped structural features and results of analyses of uranium in water.
Date: June 1947
Creator: Zeller, H. D.
Object Type: Report
System: The UNT Digital Library
Reconnaissance of Some Geologic Formations in Southeastern Idaho, Western Wyoming, and Northern Utah (open access)

Reconnaissance of Some Geologic Formations in Southeastern Idaho, Western Wyoming, and Northern Utah

Abstract: A radiometric reconnaissance, using a portable beta-gamma survey meter, of some geologic formations ranging in age from Cambrian to Cretaceous, and springs in southeastern Idaho, western Wyoming, and northern Utah, has shown that none of them are sufficiently radioactive to warrant further examination of them in the area.
Date: January 1950
Creator: Anderson, Frank J.
Object Type: Report
System: The UNT Digital Library
Relation of Uranium and Phosphate in the Phosphoria Formation (open access)

Relation of Uranium and Phosphate in the Phosphoria Formation

Report discussing investigation of the relation of uranium and phosphate in the Phosphoria formation and its close stratigraphic equivalents.
Date: January 1950
Creator: McKelvey, V. K.
Object Type: Report
System: The UNT Digital Library
Airborne Radioactivity Survey of the Red Desert Region, Sweetwater County, Wyoming (open access)

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.
Object Type: Report
System: The UNT Digital Library
Uranium Deposits in the Red Desert of the Great Divide Basin, Sweetwater County, Wyoming (open access)

Uranium Deposits in the Red Desert of the Great Divide Basin, Sweetwater County, Wyoming

From introduction: The investigations that are the subject of this report were to appraise the uranium resources of the Red Desert area, and to accumulate data concerning the geology of uranium. Knowledge of the genesis of the schroeckingerite is necessary for a clear appraisal of the deposit.
Date: November 1951
Creator: Wyant, Donald G.; Sharp, William N. & Sheridan, Douglas M.
Object Type: Report
System: The UNT Digital Library
A Preliminary Summary Report of a Reconnaissance of Sandstone-Type Copper-Uranium Deposits in Parts of New Mexico, Colorado, Utah, Idaho, and Wyoming (open access)

A Preliminary Summary Report of a Reconnaissance of Sandstone-Type Copper-Uranium Deposits in Parts of New Mexico, Colorado, Utah, Idaho, and Wyoming

From introduction: The reconnaissance was made during the summer of 1951 by two field parties: (1) a reconnaissance in parts of Oklahoma, Texas, New Mexico, and Arizona by Russell Gibson, and (2) Geological Survey reconnaissance in parts of New Mexico,.Colorado, Utah, Idaho, and Wyoming (by the writers), the results of which are summarized in this report.
Date: December 1951
Creator: Gott, Garland B. & Erickson, Ralph Leroy
Object Type: Report
System: The UNT Digital Library
Reconnaissance for Uraniferous Rocks in Northeastern Wind River Basin, Wyoming (open access)

Reconnaissance for Uraniferous Rocks in Northeastern Wind River Basin, Wyoming

From abstract: A reconnaissance search for uraniferous rocks in the northeastern part of the Wind River Basin was made in July and August 1951 in the course of other work. In addition to Tertiary tuffs and associated lignite, coal, and carbonaceous rocks, some radioactivity anomalies, chiefly in granite, which had been detected by airborne equipment in November 1950, were checked on the ground. A tuff of middle or late Eocene age containing 0.003 percent uranium was as high in uranium as any rock found.
Date: 1952?
Creator: Tourtelot, Harry Allison
Object Type: Report
System: The UNT Digital Library
Lost Creek (Wamsutter) Schroeckingerite Deposit, Sweetwater County, Wyoming (open access)

Lost Creek (Wamsutter) Schroeckingerite Deposit, Sweetwater County, Wyoming

Summary: The Lost Creek schroeckingerite deposit in Sweetwater County, Wyo., has attracted attention in the past both as an occurrence of comparatively rare minerals and more recently as a possible source of uranium ore. During the summer of 1948 a newly-formed company by the name of Uranium, Inc., explored part of the deposit by bulldozer trenching and drilling. under the technical direction of the Minerals Engineering Company of Grand Junction, Colo. Examination of the significant exposures of the schroeckingerite deposit indicated that the uraniferous beds are discontinuous and that their areal distribution is erratic. The overburden has an average thickness of 2.5 feet.
Date: January 21, 1952
Creator: Wyant, Donald G.
Object Type: Report
System: The UNT Digital Library
Reconnaissance of Uranium and Copper Deposits in Parts of New Mexico, Colorado, Utah, Idaho, and Wyoming (open access)

Reconnaissance of Uranium and Copper Deposits in Parts of New Mexico, Colorado, Utah, Idaho, and Wyoming

Report discussing an investigation of copper deposits in sandstone that were believed to be possibly uraniferous, and uraniferous asphaltite deposits.
Date: June 1952
Creator: Gott, Garland B. & Erickson, Ralph L.
Object Type: Report
System: The UNT Digital Library
Preliminary Report on Uranium-Bearing Pliocene (?) Rocks in the Split Rock Area, Central Wyoming (open access)

Preliminary Report on Uranium-Bearing Pliocene (?) Rocks in the Split Rock Area, Central Wyoming

From abstract: A sequence of slightly radioactive Pliocene(?) rocks in the Split Rock area of central Wyoming is at least 600 feet thick, underlies an area of more than 25 square miles, and consists of alternating beds of tuffaceous shale, sandstone, and pumicite. Only a small part of the section has been examined. In addition to the uranium content of the strata, there has been secondary concentration of uranium in brecciated limestone similar to spring deposits that could be of Pliocene or Pleistocene age.
Date: July 1952
Creator: Love, J. D.
Object Type: Report
System: The UNT Digital Library
Reconnaissance for Uraniferous Lignites in North Dakota, South Dakota, Montana, and Wyoming (open access)

Reconnaissance for Uraniferous Lignites in North Dakota, South Dakota, Montana, and Wyoming

From introduction: This report details the reconnaissance for uraniferous lignites in North Dakota, South Dakota, Montana, and Wyoming during 1948 and 1949.
Date: July 1952
Creator: Beroni, E. P. & Bauer, Herman L., Jr.
Object Type: Report
System: The UNT Digital Library
Reconnaissance for Uraniferous Lignites in North Dakota, South Dakota, Montana, and Wyoming (open access)

Reconnaissance for Uraniferous Lignites in North Dakota, South Dakota, Montana, and Wyoming

Report discussing a geological study performed to find uraniferous lignites in North Dakota, Eastern Montana, north-central Wyoming, and northwestern South Dakota. "Deposits of uraniferous lignites were discovered at Blue Buttes, eastern Montana; and at North Cave Hills, South Cave Hills, and at Slim Buttes in northwestern South Dakota."
Date: July 1952
Creator: Beroni, Ernest P. & Bauer, Herman L., Jr.
Object Type: Report
System: The UNT Digital Library
Reconnaissance for Uraniferous Rocks in Northwestern Colorado, Southwestern Wyoming, and Northeastern Utah (open access)

Reconnaissance for Uraniferous Rocks in Northwestern Colorado, Southwestern Wyoming, and Northeastern Utah

The following report covers a reconnaissance for new discoveries of radioactive lignite deposits in the Green River Basin and Uinta Basin of Wyoming and Utah where similar discoveries to previous studies in North Dakota, South Dakota, Montana, and Wyoming were made. Additionally, there were new prospects examined, as well as reconnaissance for uranium deposits.
Date: July 1952
Creator: Beroni, E. P. & McKeown, F. A.
Object Type: Report
System: The UNT Digital Library