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Preliminary Reconnaissance of the Dripping Spring Quartzite Formation in Gila and Pinal Counties, Arizona

Description: Abstract: A four-week reconnaissance of certain portions of the mountainous area in Gila and Pinal Counties, Arizona, was undertaken in March and April, 1953, to inspect accessible outcrops of Dripping Spring quartzite, a pre-Cambrian formation which has lately attracted the interest of the Atomic Energy Commission by the discovery of two separate occurrences of uranium mineralization. Although no new deposits were found during the field work, a more thorough examination of the quartzite seems warranted. Recommendations for further prospecting by airborne and ground methods are presented in this report, and are based largely on observations made during the brief visit.
Date: June 1953
Creator: Mead, W. E. & Wells, R. L.
Partner: UNT Libraries Government Documents Department

Ore Occurrence Study, Mesa 4-1/2 Mines, Lukachukai Mountains, Apache County, Arizona

Description: Abstract: Mine mapping of the tyuyamunite-type deposits In the Salt Wash member of the Jurassic Morrison formation of the Lukachukai Mountains, Apache County, Arizona revealed recognizable spatial relationships between ore mineralization and: fractured areas, sedimentary features, and interstitial carbonate.
Date: March 14, 1957
Creator: Beam, Thomas E.
Partner: UNT Libraries Government Documents Department

Reconnaissance for Uranium in the Southern Carrizo Mountains, Apache County, Arizona

Description: Purpose: A reconnaissance was conducted during parts of August and September, 1956, of an area about two miles square in the southern Carrizo Mountains where the Permian Cutler formation, including its DeChelly member, and the Triassic Shinarump member of the Chinle formation, are exposed. The purpose was to appraise the uranium potential of the area and to determine the cause of bleaching in the DeChelly. Extensive uranium mineralization in the Salt Wash member of the Morrison formation around the Carrizo Mountaind suggested that the Shinarump, a good producer in other areas on the Colorado Plateau, might be mineralized here as well. Bleaching, as shown in the DeChelly; has proven such a useful guide to uranium at other localities as to merit investigation here.
Date: February 20, 1957
Creator: Labrecque, Ronald A.
Partner: UNT Libraries Government Documents Department

Preliminary Report on Geologic Investigations in Monument Valley Area, Arizona, 1952

Description: From introduction: A program of uranium investigations and geologic mapping on the Navajo Indian Reservation in Apache and Navajo Counties, northeastern Arizona (fig. 1) was undertaken by the U. S. Geological Survey on behalf of the Atomic Energy Commission during the field seasons of 1951 and 1952. Field work on this program has been completed and preliminary copies of the maps, which cover an area of about 700 square miles, are inclosed as part of this report. The two principal objectives of the program were to establish geologic criteria useful as guides in prospecting for uranium deposits, and to appraise the favorableness of the Shinarump conglomerate and other Triassic rocks for the occurrence of uranium deposits in order to select areas that deserve exploration for concealed deposits.
Date: February 1953
Creator: Witkind, Irving Jerome; Thaden, R. E. & Lough, C. F.
Partner: UNT Libraries Government Documents Department

Preliminary Summary of Reconnaissance for Uranium in Arizona

Description: From introduction: A reconnaissance of Arizona uranium deposits was started in October 1950 and continued through April 1951. A total of six man--months was spent by H. C. Granger, E. P. Kaiser, and J. W. Adams. About 40 properties were examined and, of these, six were mapped by plane-table method and six were sketch-mapped. This reconnaissance was not intended as a complete evaluation of all Arizona deposits; other areas and occurrences were not examined during the investigations and are not discussed in this report.
Date: August 1951
Creator: Granger, Harry C.
Partner: UNT Libraries Government Documents Department

Reconnaissance of Red Rock Valley, Apache County, Arizona

Description: Abstract: Reconnaissance of Red Rock Valley was begun on December 10, 1953, and completed on February 11, 1954. The mines in the region were investigated and all exposures of Salt Wash were walked. Paleostream directions and alterations of the sandstones were observed and recorded on a base map. No important new mineralization was discovered-and the area is considered to be of no commercial significance if judged by the outcrops alone. However, a vast amount of Salt Wash lies at slight depth directly to the east of the investigated area.
Date: July 13, 1954
Creator: Hanshaw, Bruce B.
Partner: UNT Libraries Government Documents Department

Results of Preliminary Drilling, Red Rock, Arizona

Description: Abstract: Structure drilling under Contract No. AT(05-l)-120 was begun May 13, 1951, and was suspended June 30, 1951, at Red Rock, Arizona with the completion of 12 holes and 2,390.5 feet of drilling. No mineralization was disclosed in the widely spaced holes. The structure and rock composition was found favorable for a potential drilling area.
Date: October 16, 1952
Creator: Anderson, Andrew H.; Foster, John R. & Hurley, Daniel B.
Partner: UNT Libraries Government Documents Department

Mesaverde Uranium Deposits in the Yale Point-Black Mountain Area, Arizona

Description: Abstract: To date uranium deposits have been confined to a thin sandstone in a zone near the contact of the Middle and Lower Members of the Toreva Formation and as a leach in the Lower Sandstone Member. On a large scale the deposits are apparently restricted to zones of tectonic deformation. Locally mineralization is primarily controlled by small intraformational channels and cross bedding, and is usually associated with carbonaceous material and quartzose sand lenses.
Date: January 1956
Creator: Meador, John P.
Partner: UNT Libraries Government Documents Department

Preliminary Reconnaissance Work in the Rattlesnake Area, Apache County, Arizona

Description: From introduction: The Bluff-Salt Wash contact was mapped on aerial photographs. Mines and prospects were also plotted on the photos. The mines and prospects were studied and a brief description of the mineralization and its occurrence was written. These field notes, which will be given to Hatfield and party, contain data on the presence of carbon and fossil logs, lithology of the gangue rock, sedimentary structures, etc. Regional structure and evidence for igneous activity were also noted.
Date: September 5, 1952
Creator: Hill, John F. & Blagbrough, John W.
Partner: UNT Libraries Government Documents Department

Investigation of Uranium Deposits, Anderson Mine and Adjacent Properties, Yavapai County, Arizona

Description: From abstract: A team consisting of R. A. Lindblom, S. A. Mayer, R. G. Young, W. L. Chenoweth, R. F. Droullard, and I. T. Fisk made a reexamination of the Anderson mine (Uranium Aire) of Interstate Oil and Development located near Wickenberg in Yavapai County, Arizona. The field examination was made from August 22, 1958 to September 2, 1958. This team was formed to resolve differences between company and AEC ore reserve estimates. A cooperative effort in which the company supplied labor, limited additional drilling and both parties were in attendance during the sampling resulted in the collection of additional data. Special attention was given to assessing the in-hole assaying with radiometric equipment by IOD and AEC, evaluation of tonnage factors, moisture content, continuity of ore, and current mapping of stripped and mined areas.
Date: December 1, 1953
Creator: Lindblom, R. A. & Young, Robert G.
Partner: UNT Libraries Government Documents Department

National Uranium Resource Evaluation: Mesa Quadrangle, Arizona

Description: From Purpose and Scope: "The Mesa Quadrangle, Arizona (Fig. 1), was evaluated to identify geologic environments and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. Favorable environments, as determined by surface and subsurface investigations, are those that could contain uranium deposits of at least 100 tons (90 metric tons) U3O8 with an average grade not less than 100 parts per million (ppm) U3O8."
Date: June 1982
Creator: Luning, R. H.; Thiede, D. S.; O'Neill, A. J.; Nystrom, R. J. & White, D. L.
Location Info:
Partner: UNT Libraries Government Documents Department

National Uranium Resource Evaluation: Data Release on the Salton Sea Quadrangle, California and Arizona

Description: From objectives: In the Salton Sea Quadrangle, reported uranium occurrences were evaluated, and geologic environments thought to be favorable were examined. This report includes the field data collected during that work and a summary of the quadrangle geology and uranium favorability. This is the final report to be prepared on this quadrangle under the NURE program.
Date: October 1982
Creator: Chew, Randall T., III & Antrim, Donald R.
Partner: UNT Libraries Government Documents Department

Preliminary Report of Reconnaissance in the Cameron Area, Arizona

Description: Introduction: A radiometric airborne reconnaissance of the Cameron, Arizona, district was conducted in the late fall of 1952 and early winter of 1953. Flying was carried out under the direction of the Salt Lake Exploration Branch of the Atomic Energy Commission, Division of Raw Materials. Airborne equipment and ground personnel were provided through the Technical Services Branch of the Grand Junction Exploration Division.
Date: June 1953
Creator: Williams, Floyd J. & Barrett, Donald C.
Partner: UNT Libraries Government Documents Department

Prescott Quadrangle, Arizona

Description: From Introduction: "The Prescott 1º by 2º quadrangle (Fig. 1) was investigated to identify areas where geologic environments exhibit characteristics favorable for uranium deposits. The defined goal was to evaluate all geologic environments to a depth of 1500 m (5,000 ft) and assign each environment to one of two categories: Favorable for uranium deposits that could contain at least 100 tons U3O8 in rocks having an average grade not less than 100 ppm U3O8. Unfavorable for such deposits."
Date: unknown
Creator: May, Richard T.; White, D. L. & Nystrom, R. J.
Location Info:
Partner: UNT Libraries Government Documents Department

Geology of the Uranium Deposits of the Lukachukai Mountains Area Apache County, Arizona

Description: Abstract: In a study of the comparative importance of sedimentary and tectonic ore controls and in search of data bearing on the origin of the deposits, ten mines in the Lukachukai Mountains, Apache County, Arizona were examined in detail. All commercial deposits in the area are in the Salt Wash Member of the Morrison Formation of Jurassic age. The ore bodies are elongate and horizontally lenticular in shape and consist of one or more ore pockets surrounded or separated by protore. The composite length of ore bodies consisting of two or more ore pockets separated by subore grade material ranges up to 1,100 feet; individual ore pockets range up to 350 feet in length. Elongation is usually at least three times the width and is parallel to paleostream depositional trends measured in and near the ore bodies. Claystone and/or siltstone units nearly always underlie and frequently overlie the host sandstone units. Ore occurs most frequently in trough-type, cross-stratified sandstone which fills scours and channels in the underlying claystone units. Lithofacies maps and mine mapping show that ore bodies are restricted to areas of rapid lateral color change which in general are also areas of rapid change in the ratio of mudstone to sandstone. Most ore bodies are located on the southwest flank of the Chuska syncline within a broad belt which trends nearly north-south across the southeast end of the Lukachukai Mountains. It is suggested that a set of shear joints served as vertical channelways for the distribution of migrating uraniferous ground water. Location of the ore belt is apparently controlled by the intersection of these shear joints and particularly favorable facies of the Salt Wash Member.
Date: September 1958
Creator: Nestler, Ronald K. & Chenoweth, William L.
Partner: UNT Libraries Government Documents Department

The Occurrence of Uranium in the Diamond Head Group, Sierrita Mountains, Pima County, Arizona

Description: Abstract: The Diamond Head droup area is entirely igneous. Tight fractures in alaskite and granite, which have been altered by heiratite and kaolinization contain narrow seams and very locally,pods of sooty uraninite. A greater percentage of the structures in the area strike about east-west and dip steeply to the north, while the radioactive structures have similar strike, they dip steeply to both the north and the south. A drift has been driven on a mineralized structure far enough to ascertain that the general character of the mineralization is very narrow seams. Many such seams exists but are scattered throughout the area.
Date: September 1956
Creator: Miller, Robert A.
Partner: UNT Libraries Government Documents Department

Preliminary Report on a Uranium Occurrence and Regional Geology in the Cherry Creek Area, Gila County, Arizona

Description: Introduction: A reconnaissance of the Black Brush property was made by geologists of the Atomic Energy Commission in March, 1955. This anomalous area was located by an earlier airborne radiometric survey. the examination consisted of preliminary sampling and surface and underground radiometric traversing.
Date: July 1956
Creator: Sharp, Byron J.
Partner: UNT Libraries Government Documents Department