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Tungsten Deposits of the Nightingale District, Pershing County, Nevada
Abstract: The tungsten deposits of the Nightingale district are just within the western border of Pershing County, Nev., and in the Nightingale or Truckee Range, which lies east of Winnemucca Lake. The Tertiary volcanic rocks of the district rest unconformably upon intrusive granodiorite and steeply dipping metamorphosed limestones and slates of unknown age. The tungsten deposits are of the contact-metamorphic type: The ore consists of scheelite bearing tactite, a dark silicate rock that was formed by metamorphism of limestone at the granodiorite contact. Scheelite (calcium tungstate) is the only valuable mineral. The gangue minerals are epidote, quartz, pyroxene, garnet, calcite, tremolite, molybdenite, pyrite, pyrrhotite, chalcopyrite, arsenopyrite, apatite, and sphene. The bodies of tactite are generally tabular, and they extend downward steeply, because both the limestones and the granodiorite contact dip vertically or nearly so. The largest tactite body of the district is at the Nightingale mine; it attains a maximum thickness of 60 feet and is nearly a thousand feet long, but only for part of its length is it thick enough and rich enough to be potentially minable. That it continues downward below the mine workings, which extend to a depth of 128 feet, is shown by nine drill …
Date:
1942
Creator:
Smith, Ward C. & Guild, Philip White
System:
The UNT Digital Library
Contributions to Astrogeology, 1967-71
From contributions of astrogeology: The principal goal of research in astrogeology is the solution of several cardinal problems of geology...The present volume is the first of a series of professional papers that will describe major results of research in astrogeology.
Date:
1972
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library
Structural Geology of the Hawthorne and Tonopah Quadrangles, Nevada
From introduction: The object of this paper is to describe the salient features of Jurassic diastrophism in parts of the Tonopah and Hawthorne quadrangles in west-central Nevada. The problem is complicated by the lack of continuity of exposures, earlier folding of the older rocks, metamorphism caused by the later granitic in-trusions, and by superposed Tertiary and later normal faults.
Date:
1949
Creator:
Ferguson, Henry G. & Muller, Siemon W.
System:
The UNT Digital Library
Manganese Deposits in the Nevada District, White Pine County, Nevada
Report describing the characteristics of manganese deposits found in White Pine County, Nevada, and geographic information about the surrounding area.
Date:
1942
Creator:
Roberts, Ralph Jackson
System:
The UNT Digital Library
The Wild Horse Quicksilver District Lander County, Nevada
Abstract: The presence of cinnabar in the Wild Horse district, in western Lander County, Nev., has been known since about 1916, but little ore was produced until 1940. In that year and early in 1941, deposits discovered in 1939 were mined to apparent exhaustion by the Wild Horse Quicksilver Mining Co., which had produced 827 flasks at the end of April 1941. The district is underlain by moderately deformed sandstone, shale, and limestone of Lower and Middle Triassic age, locally covered by remnants of a mantle of Tertiary fanglomerate, tuff, and lava. The Triassic rocks are partly silicified, and cinnabar has been found in and near silicified rock, particularly the silicified limestone at the base of -the Middle Triassic. The ore bodies so far discovered were individually small and ill-defined, and had an average tenor of less than 0.5 percent of quicksilver. Other similar ore bodies are to be expected at moderate depths, but the cost of exploration for them may, perhaps, prove excessive.
Date:
1942
Creator:
Dane, Carle H. & Ross, Clyde P.
System:
The UNT Digital Library
Quicksilver Deposits of the Opalite District, Malheur County, Oregon and Humboldt County, Nevada
From Introduction: "The Opalite quicksilver district includes two deposits with a considerable past production, one deposit with a small production, and one unproved prospect. These deposits are located along the circumference of a semicircular area that extends from a short distance west of McDermitt, Nev., for about 20 miles along the Oregon-Nevada State boundary. (See fig. 34). The area thus includes parts of Humboldt County, Nev., and Malheur County, Oreg.; almost the entire production has been derived from the portion in Oregon."
Date:
1942
Creator:
Yates, Robert G.
System:
The UNT Digital Library
Tin Deposit at Majuba Hill Pershing County, Nevada
Abstract: The tin and copper deposits at Majuba Hill, Pershing County, Nevada are in a partly brecciated plug of Tertiary rhyolite porphyry, which is altered nearly everywhere to quartz and sericite and in some places is intensely tourmalinized. The tin mineral, cassiterite, appears to be associated with the alteration, for the single concentration of it was formed by replacement of altered breccia. Brecciated and altered rock is, however, only a general guide to potentially tin-bearing ground, and not a specific guide to ore shoots, for most of such rock appears to contain only small amounts of cassiterite, widely and unevenly distributed. The known deposit, which is exposed only underground, is at most 20 by 20 by 10 feet in size, and may contain about 12,000 pounds of metallic tin. The deposit is cut off by a normal fault, which apparently is of small displacement, and the footwall segment has not been found. The copper deposit is in the same normal fault, about 300 feet south of the earlier-formed tin deposit. From it about 4,000 tons of 12 percent copper ore was mined in 1915-18, but none has been mined since and no copper ore is now in sight.
Date:
1942
Creator:
Smith, Ward C. & Gianella, V. P.
System:
The UNT Digital Library
Preliminary Seismicity Study of the Southern Nevada Region for the Month of October 1972.
None
Date:
December 1972
Creator:
Bayer, Kenneth C.
System:
The UNT Digital Library
The Uranium, Tin, and Copper Deposits at Majuba Hill, Pershing County, Nevada
From abstract: Uranium is associated with copper and tin ores in the Majuba Hill area, Antelope mining district, in the central part of the Antelope Range, Pershing County, Nev. About 23, 000 tons of copper and 200 tons of tin ore, a small quantity of lead-silver ore, and some arsenic-silver ore have been produced from the Majuba Hill mine, the Last Chance mine, and a mine in sec. 34, T. 33 N., R. 31 E.
Date:
December 1952
Creator:
Thurston, Ralph H. & Trites, Albert F., Jr.
System:
The UNT Digital Library
Reconnaissance Investigations for Uranium in Black Shale Deposits of the Western States during 1951 and 1952
Report discussing investigations seeking uranium in deposits of black shale around the geographical areas of the Western States
Date:
September 1953
Creator:
Duncan, Donald Cave
System:
The UNT Digital Library
A Technique for Delineating Subsurface Fracture Zones Resulting from High-Yield Detonations
From summary: Site investigations were conducted at two locations, the sites of the DUGOUT and CHARLIE events, at the Nevada Test Site for the purpose of evaluating the dynamic in situ technique as a means of determining the boundaries of craters produced by explosive detonations.
Date:
February 1967
Creator:
Ballard, Robert F., Jr.
System:
The UNT Digital Library
Mineral Resources, Geology, and Geophysics of the Worthington Mountains Wilderness Study Area, Lincoln County, Nevada
Results of a survey of the Worthington Mountains Wilderness Study Area (NV-040-242) in Lincoln County, Nevada to determine mineral values, if any. The survey determined that metallic mineral (Cu, Pb, Zn, Au, Ag, W) resource potential within the study area is moderate, with level-B certainty, in the northernmost part, and it is low, with level-C certainty, in the remainder of the area. The report outlines the survey measurements and final results, with references and associated resource materials.
Date:
1986
Creator:
Du Bray, Edward A.; Blank, H. Richard, Jr. & Wood, Robert H., II
System:
The UNT Digital Library
Mineral Resources of the White Rock Range Wilderness Study Area, Lincoln County, Nevada, and Beaver and Iron Counties, Utah
From summary: The White Rock Range Wilderness Study Area (NV-040-202/UT-040-216) is in Lincoln County, Nevada, and Beaver and Iron Counties, Utah, along the southern Nevada-Utah state line. Ursine, the town nearest to the study area, is about 15 mi (miles) southwest of the study area; the larger town of Pioche is about 30 mi southwest of the study area on Nevada Highway 322. A joint mineral resource appraisal of the 23,625 acre wilderness study area was completed in the summers of 1984 and 1985 by the U.S. Geological Survey and U.S. Bureau of Mines. The White Rock Range Wilderness Study Area has no identified mineral resources and has low mineral resource potential for metals; the potential for oil and gas, coal, and geothermal energy is also low.
Date:
1986
Creator:
Toth, Margo I.; Stoneman, Rebecca G.; Blank, H. Richard, Jr. & Gese, Diann D.
System:
The UNT Digital Library
Mineral Resources of the Far South Egans Wilderness Study Area, Lincoln and Nye Counties, Nevada
From summary: During 1983 and 1984, the U.S. Geological Survey and the U.S. Bureau of Mines conducted field investigations to assess the mineral resource potential and appraise the identified resources of a part of the Far South Egans (NV-040-172) Wilderness Study Area. The area studied encompasses about 63.5 mi2 (square miles) (42,316 acres) in Lincoln and Nye Counties, Nevada, and is in the southern part of the Egan Range of east-central Nevada.
Date:
1987
Creator:
Hedlund, David Carl; Davies, R. C.; Hovorka, Dirk S.; Blank, H. Richard, Jr. & Tuftin, S. E.
System:
The UNT Digital Library
Mineral Resources of the Parsnip Peak Wilderness Study Area, Lincoln County, Nevada
From summary: The Parsnip Peak (NV-040-206) Wilderness Study Area in Lincoln County, Nevada, is 10 mi (miles) northeast of the small mining town of Pioche. A mineral resource study of the area was completed in the summers of 1984 and 1985 by the U.S. Geological Survey and U.S. Bureau of Mines. A small area of limestone and dolomite on the western side of the wilderness study area has high mineral resource potential for arsenic, antimony, mercury, and gold. The rest of the Parsnip Peak Wilderness Study Area has low mineral resource potential for metals, oil and gas, coal, and geothermal energy.
Date:
1987
Creator:
Toth, Margo I.; Stoneman, Rebecca G.; Blank, H. Richard, Jr. & Gese, Diann D.
System:
The UNT Digital Library
Mineral Resources of the Weepah Spring Wilderness Study Area, Lincoln and Nye Counties, Nevada
From summary: The USGS (U.S. Geological Survey) and the USBM (U.S. Bureau of Mines) studied the mineral resource potential of 50,499 acres of the 61,137-acre Weepah Spring Wilderness Study Area (NV-040-246), Lincoln and Nye Counties, Nev., at the request of the BLM (U.S. Bureau of Land Management). In this report, the area studied is referred to as the "wilderness study area" or the "study area." Field studies of the area were conducted during summer 1984 by USBM geologists and during spring 1984 and fall 1985 by USGS geologists, geochemists, and geophysicists.
Date:
1987
Creator:
Du Bray, Edward A.; Blank, H. Richard, Jr. & Turner, Robert L.
System:
The UNT Digital Library
Summary of Geologic Investigations, Cyclone Project
The following report is the second part in the Cyclone Project's summary of geologic investigations, covering geological studies on the USGS Tunnel in the Nevada Test Site in the Tippipah Spring quadrangle, as well as analyzing the underground effects from explosive tests.
Date:
1983
Creator:
Cattermole, J. M.
System:
The UNT Digital Library
Geologic Map of the Dead Horse Flat Quadrangle, Nye County, Nevada
The following report provides a geological map of the Deadhorse Flat quadrangle, Nye County, Nevada.
Date:
July 27, 1967
Creator:
Noble, Donald C.; Krushensky, Richard K.; McKay, Edward J. & Ege, John R.
System:
The UNT Digital Library
Geologic Map of the Thirsty Canyon Quadrangle, Nye County, Nevada
The following report provides a geologic map of the Thirsty Canyon quadrangle in Nye county, Nevada.
Date:
June 4, 1965
Creator:
O'Connor, J. T.; Anderson, R. E. & Lipman, P. W.
System:
The UNT Digital Library
The Uranium, Tin, and Copper Deposits at Majuba Hill, Pershing County, Nevada
Report discussing the copper and tin ores of the Majuba Hill area of the Antelope mining district that are associated with uranium deposits.
Date:
December 1952
Creator:
Thurston, Ralph H. & Trites, Albert F., Jr.
System:
The UNT Digital Library
Some Effects of Underground Nuclear Explosions on Tuff
The following report covers the effects of the Rainier, Logan, and Blanca explosions on tuff that were determined through observations and measurements on the surface and in drill holes and tunnels.
Date:
December 1959
Creator:
Wilmarth, Verl R.
System:
The UNT Digital Library
Outline of the Geology of the U12i and the U12i.01 Tunnels and Lithology of the U12i.01 Drill Hole, Nevada Test Site
The following report summarizes descriptive geological and lithological data for the U12i tunnel system in the Nevada test site.
Date:
November 1963
Creator:
Bowers, W. E.
System:
The UNT Digital Library
Geology of the 410 Area Nevada Test Site Nye County, Nevada
The following report follows geological investigations made on the 410 Area of the Nevada Test Site.
Date:
June 1961
Creator:
Davis, Robert E.
System:
The UNT Digital Library
Preliminary Evaluation of the Seismicity, Geology, and Hydrology of the Northern Sand Springs Range, Churchill County, Nevada, as a Possible Site for Project Shoal
The following report summarizes the known information to date of June 1961 on the Sand Range as it pertains to the Shoal experiments.
Date:
July 1961
Creator:
Twenhofel, William S.; Moore, John E. & Black, Rudolph A.
System:
The UNT Digital Library