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A Preliminary Report on the Precambrian Iron Deposits Near Atlantic City, Wyoming
This report studies the Precambrian iron deposits and major geological features near Atlantic City, Fremont County, Wyoming.
Date:
1963
Creator:
Bayley, Richard W.
System:
The UNT Digital Library
Distribution and Thickness of Devonian Rocks in Williston Basin and in Central Montana and North-Central Wyoming
This report studies Devonian rocks in an approximately 200,000-square-mile area between Williston Basin, central Montana, and north-central Wyoming.
Date:
1961
Creator:
Sandberg, Charles A.
System:
The UNT Digital Library
Geology and Mineral Fuels of Parts of Routt and Moffat Counties, Colorado
This report studies the geology of mineral deposits in Mount Harris, Pilot Knob, Elkhead Creek, and Daton Peek quadrangles in northwestern Colorado.
Date:
1955
Creator:
Bass, N. Wood; Eby, J. Brian & Campbell, Marius R.
System:
The UNT Digital Library
Sugar Loaf and St. Kevin Mining Districts, Lake County, Colorado
The following report was prepared in cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund Board. This report concerns work done partly on behalf of the U.S. Atomic Energy Commission and is published with the permission of the Commission.
Date:
1955
Creator:
Singewald, Q. D.
System:
The UNT Digital Library
Physical Stratigraphy of the Phosphoria Formation in Part of Southwestern Montana
This report investigates the physical stratigraphy of the Permian Phosphoria formation of the central and northern Rocky Mountains.
Date:
1955
Creator:
Cressman, Earle Rupert
System:
The UNT Digital Library
Geology of the Crazy Woman Creek area, Johnson County, Wyoming
This report follows the geological study of the Crazy Woman Creek area in Johnson County, Wyoming where oil, gas, and coal investigations were made.
Date:
1955
Creator:
Hose, Richard Kenneth
System:
The UNT Digital Library
Dolomite Deposit Near Marble Stevens County, Washington
This report follows the geological field studies of dolomite deposits near Marble Stevens county, Washington.
Date:
1955
Creator:
Deiss, Charles
System:
The UNT Digital Library
Geology and Coal Resources of the Coal-Bearing Rocks of Alabama
"A detailed estimate of the reserves of coal in Alabama and a description of the stratigraphy of the coal-bearing rocks."
Date:
1964
Creator:
Culbertson, William Craven
System:
The UNT Digital Library
Geology of the Northwest Quarter of the Anaconda Quadrangle, Deer Lodge County, Montana
The following report presents the geology and mineral resources of part of the Anaconda quadrangle near Butte, Montana.
Date:
1966
Creator:
Wanek, Alexander A. & Barclay, C. S. Venable
System:
The UNT Digital Library
Geology of the Robertson, Humdinger, and Robert E. Gold Mines, Southwestern Oregon
From introduction: This report embodies the results of investigations of three gold mining districts in Josephine and Curry Counties, southwestern Oregon.
Date:
1933
Creator:
Shenon, Philip J. & Wells, Francis G.
System:
The UNT Digital Library
Geology of the Wiles Area Ranger District, Texas
This report describes the economic geology of the Wiles area Ranger District, Texas.
Date:
June 28, 1922
Creator:
Dobbin, Carroll E.
System:
The UNT Digital Library
The Lacasa Area, Ranger District North-Central Texas
This document reports the economic geology of the Lacasa area, Ranger district in North-Central Texas, with fieldwork done in April and May of 1919.
Date:
December 23, 1921
Creator:
Ross, Clarence S.
System:
The UNT Digital Library
A Reconnaissance For Oil Near Quanah, Hardeman County Texas
This report documents the examination for oil in the vicinity of Quanah, Hardeman County Texas during the fall of 1914.
Date:
October 9, 1915
Creator:
Wegemann, Carroll H.
System:
The UNT Digital Library
A Reconnaissance in Palo Pinto County, Texas : With Special Reference to Oil and Gas
This document reports the presence of oil and gas in Palo Pinto County, Texas, as studied by the United States Geological Survey in the fall of 1914.
Date:
September 11, 1915
Creator:
Wegemann, Carroll H.
System:
The UNT Digital Library
Geology and Ore Deposits of the Shafter Mining District, Presidio County, Texas
This report describes results of a field study in the Shafter mining district and conclusions presented are drawn from field studies along with office studies.
Date:
1943
Creator:
Ross, Clyde P.
System:
The UNT Digital Library
Stratigraphy, Structure, and Mineralization in the Beaver-Tarryall Area, Park County, Colorado: A Reconnaissance Report
From Introduction: "The recent large increase in gold production from the Alma district has greatly stimulated interest in territory immediately to the east, where many small gold-bearing veins have been discovered. Consequently, as a cooperative project of the United States Geological Survey and the State of Colorado, 7 weeks in 1938 were devoted to renaissance work to determine the origin of the placer gold and the possibilities for discovering valuable lode deposits either near the surface or at depth."
Date:
1942
Creator:
Singewald, Quentin D.
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
Bentonite Deposits of the Northern Black Hills District Wyoming, Montana, and South Dakota
From abstract: The northern Black Hills bentonite mining district includes parts of Crook County, Wyo., Carter County, Mont., and Butte County, S. Dak. Within this district, many beds of bentonite occur interspersed with sedimentary strata of Cretaceous age that have an average total thickness of about 3,000 feet and consist chiefly of marine shale, marl, and argillaceous sandstone. The bentonite beds occur in formations ranging upward from the Newcastle sandstone to the lower part of the Mitten black shale member of the Pierre shale. Tertiary (?) and Quaternary deposits of gravel, sand, and silt are present on extensive terraces, and deposits of such materials also extend along stream courses in all parts of the district.
Date:
1962
Creator:
Knechtel, Maxwell M. & Patterson, Sam H.
System:
The UNT Digital Library
Radioactive Rare-Earth Deposit at Scrub Oaks Mine, Morris County, New Jersey
From abstract: A deposit of rare-earth minerals in the Scrub Oaks iron mine, Morris County, N. J., was mapped and sampled in 1955. The rare-earth minerals are mainly in coarse-grained magnetite ore and in pegmatite adjacent to it. Discrete bodies of rare-earth-bearing magnetite ore apparently follow the plunge of the main magnetite ore body at the north end of the mine. Radioactivity of the ore containing rare earths is about 0.2 to 0.6 milliroentgens per hour.
Date:
1959
Creator:
Klemic, Harry; Heyl, Allen V., Jr.; Taylor, A. R. & Stone, Jerome
System:
The UNT Digital Library
Beryl-bearing Pegmatites in the Ruby Mountains and Other Areas in Nevada and Northwestern Arizona
From abstract: Pegmatite occurs widely in Nevada and northwestern Arizona, but little mining has been done for such pegmatite minerals as mica, feldspar, beryl, and lepidolite. Reconnaissance for beryl-bearing pegmatite in Nevada and in part of Mohave County, Ariz., and detailed studies in the Dawley Canyon area, Elko County, Nev., have shown that beryl occurs in at least 11 districts in the region. Muscovite has been prospected or mined in the Ruby and Virgin Mountains, Nev., and in Mohave County, Ariz. Feldspar has been mined in the southern part of the region near Kingman, Ariz., and in Clark County, Nev.
Date:
1960
Creator:
Olson, Jerry C. & Hinrichs, E. Neal
System:
The UNT Digital Library
Strategic Graphite, A Survey
From abstract: Strategic graphite consists of certain grades of lump and flake graphite for which the United States is largely or entirely dependent on sources abroad. Lump graphite of high purity, necessary in the manufacture of carbon brushes, is imported from Ceylon, where it occurs in vein deposits. Flake graphite, obtained from deposits consisting of graphite disseminated in schists and other metamorphic rocks, is an essential ingredient of crucibles used in the nonferrous metal industries and in the manufacture of lubricants and packings. High-quality flake graphite for these uses has been obtained mostly from Madagascar since World War I. Some flake graphite of strategic grade has been produced, however, from deposits in Texas, Alabama, and Pennsylvania. The development of the carbon-bonded crucible, which does not require coarse flake, should lessen the competitive advantage of the Madagascar producers of crucible flake.
Date:
1960
Creator:
Cameron, Eugene N. & Weis, Paul L.
System:
The UNT Digital Library
Geology and Fluorspar Deposits, Northgate District, Colorado
From abstract: The fluorspar deposits in the Northgate district, Jackson County, Colo., are among the largest in Western United States. The mines were operated intermittently during the 1920's and again during World War II, but production during these early periods of operation was not large. Mining was begun on a larger scale in 1951, and the district has assumed a prominent position among the fluorspar producers in the United States. Within the Northgate district, Precambrian metamorphic and igneous rocks crop out largely in the Medicine Bow Mountains, and later sedimentary rocks underlie North Park and fill old stream valleys in the mountains.
Date:
1960
Creator:
Steven, Thomas August
System:
The UNT Digital Library
Areal Geology of the Little Cone Quadrangle, Colorado
From abstract: The Little Cone quadrangle includes an area of about 59 square miles in eastern San Miguel County in southwestern Colorado. The quadrangle contains features characteristic of both the Colorado Plateaus physiographic province and the San Juan Mountains, and it has been affected by geologic events and processes of two different geologic environments.
Date:
1960
Creator:
Bush, Alfred Lerner; Marsh, Owen Thayer & Taylor, Richard B.
System:
The UNT Digital Library
Manganese Deposits in the Drum Mountains, Juab and Millard Counties, Utah
From abstract: The Drum Mountains are in west-central Utah 30 miles northwest of Delta, between the Sevier Desert on the east and Whirlwind Valley on the west. It is a typically barren desert range comprising a westward-tilted structural unit in which is exposed as much as 9,000 feet of quartzite (Cambrian and Precambrian?) and 3,000 feet of carbonate rocks of Cambrian age. These beds, which strike northward and dip west, are cut by myriad east- to northeast trending faults with displacements of a few feet to a few thousand feet. Quartz monzonite dikes, pebble dikes, and vein deposits are present locally along the faults. The Cambrian rocks are overlain unconformably by volcanic rocks of probable Tertiary age.
Date:
1961
Creator:
Crittenden, Max D., Jr.; Straczek, John A. & Roberts, Ralph Jackson
System:
The UNT Digital Library