Report issued by the Bureau of Mines over studies of the Tem Piute tungsten deposits. The physical features, geology, and mining methods are presented. This report includes maps, charts, and illustrations.

Report discussing earthquake activity in the United States during 1952. The report is broken down by regions and has sections for specific earthquakes.

Report discussing earthquake activity in the United States during 1956. The report is broken down by regions and has sections for specific earthquakes.

From introduction: The papers comprising the various parts of this report contain the preliminary results of the U. S. Geological Survey investigations in the Ul2e.05 tunnel at the Atomic Energy Commission's Nevada Test Site, Nye County, Nevada (fig. 1). Reports on electrical resistivity, natural radioactivity, and heat required to raise the rocks to 100C will be issued later. A preliminary report on the geologic effects of the Blanca event is being prepared.

From introduction: This report includes a brief description of the stratigraphy and structure, and data on petrology, mineralogy, and chemical and physical properties of the rocks that are exposed in the U12b.01 tunnel of the U12b (Rainier) tunnel system.

From introduction: This report summarizes the information obtained during preparation of the lithologic log of the core and presents results of chemical analyses of marble samples collected from surface near the drill hole. The report was prepared by the U.S. Geological Survey on behalf of the Albuquerque Operations Office, U.S. Atomic Energy Commission.

From introduction: This report is a summary of the detailed geologic and engineering information that is available on three sites for underground explosions on the Nevada Test Site.

From abstract: A reconnaissance radioactivity survey of the Anaconda Copper Mining Company open-pit copper mine at Yerington, Nevada, was made in October 1953 to investigate the reported occurrence on one of the mine dumps of rock containing 0.022 percent uranium.

From introduction: The "Granite" exploration hole was core drilled to determine the character of the igneous rocks from the surface to a depth of 1,200 feet and the degree of structural anisotropism of the rock within 200 feet of a point 950 feet below the surface. This report summarizes the data on the structure, chemistry, petrology and alteration of the rocks exposed at the surface in the immediate vicinity of the drill site and in the core.

From introduction: The papers comprising the various parts of this report contain the preliminary results of the U. S. Geological Survey investigations in the U12b.02 tunnel at the Nevada Test Site.

From abstract: Numerous discontinuous layers of opal are interbedded with a gently-dipping series of vitric tuff and ash which is at least 300 feet thick. The tuff and ash are capped by a dark, vesicular basalt in the eastern part of the area and by a thin layer of terrace gravels in the area along the west side of Virgin Valley.

From introduction: This report is based on the field and laboratory studies of the uranium mineralization in the vicinity of Goodsprings, Clark Co., Nevada. The location of the region is shown in figure 1.

Abstract: Secondary uranium minerals occur along narrow silicified northeast-trending fractures in Tertiary volcanics of rhyolitic composition. Two zones containing uranium minerals are present.

Abstract: The Valley of Fire-Muddy Mountains region, located 20 to 30 miles northeast of Las Vegas, Nevada, was given approximately 25-percent airborne radioactive coverage during the fall of 1954. Rocks in the area range from Cambrian to Miocene in age. Uranium was known to occur at two sedimentary horizons at the time the airborne program began. One new uranium-bearing sedimentary horizon was discovered by the airborne reconnaissance. Of 15 anomolies detected, only 11 were posted as the remainder were claimed at the time of the survey.

Abstract: Approximately 10 square miles of mainly igneous rocks of the western Mojave Desert were covered by this airborne radiometric survey in 173 hours of flying time.

Report issued by the Bureau of Mines over studies of mercury deposits in Nevada, and Oregon. History, physical features, and geology of the deposits are presented. This report includes maps, and illustrations.

From introduction: This report summarizes the results of detailed mapping and sampling completed during 1952 with particular reference to an area of about 60 square miles in T. 16 S. , R. 21 E. , Cassia County, Idaho, and parts of adjacent townships in Idaho, Utah, and Nevada. It supplements an earlier report based on reconnaissance stttdies in the Goose Creek district in 1951 (Hail and Gill, 1953).

From introduction: The results presented in this preliminary report are principally concerned with the ground motion caused by seven underground nuclear explosions (table 1) in the bedded tuff of the Oak Spring formation in Area 12. Ground motions were recorded at stations as close as 5 kilometers and as far as 300 kilometers from the explosions (fig 1 and table 2). The results for the Bianca and especially the Evans explosion are meager because the first was accompanied by a Test Site-wide moznentary power failure and because the yield of the second was so far below the anticipated yield that uncertain results were obtained. Ground motions caused by most of the air explosions in Operations Plumbbob and Hadtack - Phase 2 were recorded and have been partly analyzed. Results are presented in this report only where they relate significantly to analysis of the underground explosions. The effects of most of the small underground explosions in Area 3 (center of Yucca Flat) that had significant yields were also recorded. The results have not yet been interpreted.

From abstract: This report describes the Rainier underground test of September 19, 1957 conducted at the Nevada Test Site with a 1.7 kiloton nuclear device.

From introduction: This report is a summary of geologic information obtained by the USGS at Dolomite Hill, Nevada.

From introduction: This report details the results of instrument recordings of a nuclear explosion where ground zero was near the top of Rainier Mesa.

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.

Report discussing investigations seeking uranium in deposits of black shale around the geographical areas of the Western States

Report discussing the copper and tin ores of the Majuba Hill area of the Antelope mining district that are associated with uranium deposits.