Technical Report Archive and Image Library (TRAIL) - 22,044 Matching Results

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Quicksilver deposits in the Steens and Pueblo mountains, southern Oregon

Description: From Abstract: "This report describes the occurrence of the mica and its physical properties among which is an unusually wide range of colors. A table is presented showing the results of power-factor measurements made by the National Bureau of Standards on 196 samples of sheet mica from 109 mica mines and 15 feldspar mines.It is concluded that more systematic planning of mica mining, for the district as a whole. would result in an average yearly production of at least 90,000 pounds of relatively clear sheet and possibly much more."
Date: 1942
Creator: Ross, Clyde P.
Partner: UNT Libraries Government Documents Department

Quicksilver deposits in the Steens and Pueblo mountains, southern Oregon

Description: From Scope of Report: "During the summer of 1940, 34 days were spent in a preliminary study of the quicksilver deposits in the Steens and Pueblo Mountains. Nearly all of the quicksilver prospects were examined and mapped, and the general geology of the east flank of the mountains from north of Andrews to Denio was reconnoitered."
Date: unknown
Creator: Ross, Clyde P.
Partner: UNT Libraries Government Documents Department

Manganese Deposits of Cedar Creek Valley, Frederick and Shenandoah Counties, Virginia

Description: From abstract: The Cedar Creek manganese mining district is in the southwestern part of Frederick County and the northwestern part of Shenandoah County, Virginia. The manganese ore consists chiefly of the oxides pyrolusite and psilomelane, and forms replacement pockets and fracture fillings in the Oriskany sandstone and in residual sandy clay and chert derived from the New Scotland limestone. Both these formations are of Devonian age, and both form low ridges. The minable bodies have been deposited by ground water in the zone of weathering, and most of them lie above present ground-water level. The manganese-bearing formations, together with the older and younger formations exposed in Cedar Creek Valley, have been compressed into numerous folds, and at the southwestern end of the district one of these folds passes into a normal fault with a displacement of 1,000 feet or more.
Date: 1942
Creator: Monroe, Watson Hiner
Partner: UNT Libraries Government Documents Department

Ionium Recovery Plant Design Report: Topical Report

Description: From introduction: At the request of the AEC, a process was developed for the concentration of the thorium content of pitchblende raffinate cake, and a plant design was developed for the production of a thorium concentrate containing 5000 grams of ionium (thorium-230) per year. This report describes the experimental work and presents the design calculations based upon it.
Date: April 15, 1959
Creator: Edwards, R. M.; Fariss, R. H. & Werkema, R. G.
Partner: UNT Libraries Government Documents Department

Mafic and Ultramafic Xenoliths from Volcanic Rocks of the Western United States

Description: From abstract: Mafic and ultramafic xenoliths in the Western United States are present in volcanic rocks ranging from lamprophyric to dacitic in composition and are found in every major tectonic province from the Coast ranges from California to the Great Plains. Xenoliths from 68 localities are described here, but new localities are being discovered, and much remain to be learned about their distribution with respect to the tectonic and geophysical framework of the Western United States.
Date: 1988
Creator: Wilshire, Howard Gordon; Meyer, C. E.; Nakata, John K.; Calk, L. C.; Shervais, John W.; Nielson, J. E. et al.
Location Info:
Partner: UNT Libraries Government Documents Department

Chromite deposits of Kenai Peninsula, Alaska

Description: This report describes field work and research done in two areas of ultramafic rocks containing chromite deposits are known at the south end of Kenai Peninsula, Alaska. The Red Mountain is the other area covered in this report.
Date: 1942
Creator: Guild, Philip White
Partner: UNT Libraries Government Documents Department

Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California

Description: From Introduction: "The present report is based on 10 weeks of field work from mid-November 1940 until late January 1941, and 4 days in May 1941. An area of 5 1/2 square miles in and about Del Puerto Canyon was mapped on a scale of 600 feet to 1 inch, and two small areas in the vicinity of the Adobe Canyon and Black Bart chromite mines were mapped on a scale of 200 feet to 1 inch."
Date: 1942
Creator: Hawkes, H. E., Jr.; Wells, Francis G. & Wheeler, D. P., Jr.
Partner: UNT Libraries Government Documents Department

Nickel-gold deposit near Mount Vernon, Skagit County, Washington

Description: From Introduction: "The Mount Vernon nickel-gold deposit is 4 1/2 miles southeast of the city of Mount Vernon, Skagit County, Wash. The writers believe that the nickel was originally present in the serpentinized peridotite and that it was dissolved and redistributed by ascending hydrothermal gold-bearing solutions while the serpentine was being altered into the silica-carbonate rock."
Date: 1941
Creator: Hobbs, S. W. & Pecora, W. T.
Partner: UNT Libraries Government Documents Department

Nickel Deposits of Bohemia Basin and Vicinity, Yakobi Island, Alaska

Description: From Introduction: "According to present knowledge, the deposits center principally, in three areas: Bonemia Basin on Yakobi Island, Mirror Harbor on Chicagof Island, and Snipe Bay on Baranof Island. This report deals only with the deposits of the most northerly area, in and near Bohemia Basin."
Date: 1942
Creator: Reed, John C. & Dorr, John Van N., Jr.
Partner: UNT Libraries Government Documents Department

Nickel deposit near Riddle, Douglas County, Oregon

Description: From Introduction: "The Riddle nickel deposit is on Nickel Mountain, also called Piney Mountain, about 5 miles northwest of Riddle, Douglas Country, Oreg. (fig. 20). The deposit is an unevenly distributed surficial blanket, containing the nickel silicate garnierite, which rests upon peridotitic rocks on the western, southern, and southeastern slopes of the mountain above an elevation of 2,000 feet. It is on the Southern Pacific Railroad, and it is about 230 miles by highway south of Portland. A poorly conditioned dirt road about 5 miles long connects the town with the nickel deposit."
Date: 1942
Creator: Pecora, William T. & Hobbs, S. Warren
Partner: UNT Libraries Government Documents Department

Subsurface Geology and Oil and Gas Resources of Osage County, Oklahoma: Part 4. Townships 24 and 25 North Ranges 10 and 11 East

Description: From foreword: This report on the subsurface geology of Osage County, Okla., describes the structural features, the character of the oil- and gas-producing beds, and the localities where additional oil and gas may be found. It embodies a part of the results of a subsurface geologic investigation of the Osage Indian Reservation, which coincides in area with Osage County.
Date: 1941
Creator: Kennedy, L. E.; McClure, J. D.; Jenkins, H. D. & Bass, N. Wood
Partner: UNT Libraries Government Documents Department

Statistical Techniques Applied to Aerial Radiometric Surveys (STAARS): Principal Components Analysis User's Manual, Figure 8

Description: Clear film copy of figure 8 meant to be laid over figure 7 in a report regarding computer techniques for analyzing aerial radiometric surveys. The figure outlines numbered segments (explained on p. 35/36 of the report) that highlight specific geologic features in the area highlighted by the report.
Date: January 1981
Creator: Koch, C. D.; Pirkle, F. L. & Schmidt, J. S.
Location Info:
Partner: UNT Libraries Government Documents Department

Precambrian uranium-bearing quartz-pebble conglomerates: exploration model and United States resource potential

Description: From Introduction: "Uranium has been discovered in fluvial quartz-pebble conglomerates in most of the Precambrian shield areas of the world, including the Canadian, African, South America, Indian, Baltic, and Australian shields. Occurrences in these and other areas are shown in Figure 1.1. Two of these occurrences, the Huronian supergroup of Canada and the Witwatersrand deposit of South Africa contain 20-30 percent of the planet's known uranium reserves (Nininger, 1974). Thus it is critical that we understand the origin of these deposits and develop exploration models that can aid in finding new deposits."
Date: November 1979
Creator: Houston, Robert S. & Karlstrom, Karl E.
Partner: UNT Libraries Government Documents Department

Relationships Between the Geologic Environment and Mortality from Congenital Malformation

Description: Abstract: Deaths from congenital malformations as a fraction of total deaths for the period 1952-1956 were tabulated from vital statistics records of the United States. The data were tabulated by county and state and the results grouped by geologic province. The data from this preliminary study suggest that mortality incidence from malformation may be higher in those geologic provinces of the United States that contain major uranium ore deposits, uraniferous waters or helium concentrations. It is inferred that these provinces have a higher than average level of environmental radiation. Although the data do not permit conclusive statements regarding the etiology of congenital malformation in reference to the geologic environment, they are sufficiently provocative to warrant further investigation.
Date: January 1960
Creator: Kratchman, Jack & Grahn, Douglas
Partner: UNT Libraries Government Documents Department

Report on SOM Investigations in Arizona (Except the Plateau Province Area)

Description: From summary: Union Mines' examination of Arizona's pegmatites, lode deposits of the central and southeastern parts of the state, and heavy mineral concentrates from few placer deposits indicates that SOM is practically non-existent in the first two and that minor amounts of monazite and possibly other S-37 minerals are present in the last.
Date: March 26, 1946
Creator: Hill, J. M.
Partner: UNT Libraries Government Documents Department