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Reconnaissance of Some Red Bed Copper Deposits in the Southwestern United States

Description: A reconnaissance of many of the copper deposits in the Red Beds of New Mexico, Arizona, Oklahoma, and Texas that was carried out in the summer of 1951 yielded chiefly negative results from the standpoint of uranium production. With the possible exception of the Grand View mine, which will require further investigation, none of the deposits seen in this survey gives promise of being of commercial interest for uranium at the present time.
Date: February 1952
Creator: Gibson, Russell
Partner: UNT Libraries Government Documents Department

Preliminary Report on Uranium-Bearing Deposits in Mohave County, Arizona

Description: Abstract: Preliminary studies of the Wallapai Mining District and selected properties in the Maynard and Greenwood Mining Districts, Mohave County, Arizona, from January 8 to March 8, 1953, were made to determine the extent of uranium mineralization. All of the uranium properties examined are of the vein type and are believed to be of mesothermal origin. Brecciation and porosity of the veins appear to be controlling factors in the concentration of uranium minerals from the ore-bearing solutions. Although the uranium minerals present in these districts have not been specifically identified, they appear to be mostly primary with very minor occurrences of secondary products. One exception is the State mine in the Greenwood District, where secondary minerals predominate.
Date: June 1953
Creator: Hart, Olin M. & Hetland, Donald L.
Partner: UNT Libraries Government Documents Department

Report on Wagon Drilling for Uranium in the Silver Reef (Harrisburg) District, Washington County, Utah: Part 1

Description: Abstract: An exploratory wagon drilling program was conducted from May 2, 1953, to October 31, 1953, on the Silver Crown, Big Hill, and Silverman claims of Western Gold and Uranium Mines, Inc. at the Silver Reef district near Leeds, Utah. Two economically significant new ore bodies were discovered and considerable geological information gained. The Silver Reef uranium deposits are located near the faulted north-plunging nose of the Virgin anticline in an old silver mining' district. Silver, uranium, vanadium, and copper minerals occur in association with various carbonaceous, sandy shale horizons of the Leeds and Tecumseh members of the Triassic Chinle formation. Mineralization has favored areas where relatively close-spaced normal faults of very small displacement cut the favorable beds.
Date: December 1953
Creator: Poehlmann, Edwin J. & King, Earl N.
Partner: UNT Libraries Government Documents Department

Airborne Radiometric Survey of the East Flank of the Big Horn Mountains, Wyoming and Montana

Description: Abstract: An airborne radiometric survey of parts of the east flank of the Big Horn Mountains was begun on June 23, and completed on August 27, 1952. An area of approximately 250 square miles was covered, and only two anomalies were found in the entire area. Flight lines were arranged in accordance with the geology of the area, particular attention being given to formations the stratigraphic equivalents of which are known to be uranium bearing in other areas. Two additional zones of radioactivity were found by ground investigation, but assays from both the ground and the airborne discoveries showed no economic uranium deposits.
Date: September 26, 1952
Creator: Jones, E. E.
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

Uranium Ore Controls of the Happy Jack Deposit, White Canyon, San Juan County, Utah

Description: Abstract: The Happy Jack uranium deposit of White Carron, San Juan County, Utah, was studied in connection with an Atomic Energy Commission exploration program. The major uranium ore control is a paleostream channel containing sediments of the Shinarump conglomerate. Intrachannel controls include organic matter, lithologic variations, and channel "lows". Microscopic studies reveal that uraninite, the primary ore mineral, occurs as cement and as a replacement of organic material. Both the uraninite and copper sulfides replace secondary quartz overgrowths. Crystals of chalcopyrite, chalcocite, and pyrite occur one within the other. Resolution of bornite and chalcopyrite is present. Uraninite is dated as later than the secondary overgrowths and of about the same age as the copper sulfides.
Date: March 26, 1953
Creator: Miller, Leo J.
Partner: UNT Libraries Government Documents Department

Geology and Ore Deposits of Mesa V, Lukachukai District, Arizona

Description: From abstract: Mesa V of the Lukachukai area is capped by Morrison sediments which dip gently eastward from the mountains to the mesa tip, where the strata are tilted sharply to the opposite dip by the Lukachukai monocline. The Salt Wash of Mesa V contains ore outcrops which indicate favorable intensity of mineralization at one horizon along a 2000-foot outcrop interval. Other scatted exposures indicate the existence of ore under much of the mesa surface.
Date: November 16, 1951
Creator: King, John W.
Partner: UNT Libraries Government Documents Department

Delineation of the Shinarump Pinchout by Drilling, Clay Gulch, San Juan County, Utah

Description: From abstract: The results of diamond-drill exploration for the Shinarump member of the Chinle formation in Clay Gulch, San Juan County, Utah, indicate that between Clay Gulch and exposures along Red House Cliffs, about 2 miles east, a dominantly continuous blanket of the Shinarump member wedges out northeast of a line trending N. 150 W.
Date: October 1956
Creator: Santos, Elmer S.
Partner: UNT Libraries Government Documents Department

Preliminary Memorandum on the Trinity Mines, Marysvale, Utah

Description: This report provides results from a preliminary study to determine rock types and alteration products that are responsible for an observed abundance of radioactive gas at the Trinity Gold Mine in Utah. It includes an overview of the study and the location, description of the methods and general statements, details about the structure, petrography and mineralogy, and a discussion of findings.
Date: September 1978
Creator: Green, Jack & Kerr, Paul F.
Partner: UNT Libraries Government Documents Department

Airborne Radioactivity Survey of Part of the Navajo Indian Reservation of Utah and Arizona

Description: From introduction: The purpose of an airborne radioactivity survey is to locate ground areas of higher than normal radioactivity which might lead to discovery of uranium mineralization. For this type of survey, gamma-ray detection equipment employing either a geiger counter or a scintillation counter can be mounted in a fixed wing aircraft or a helicopter.
Date: February 29, 1952
Creator: Cummings, Winthrop L.
Partner: UNT Libraries Government Documents Department

Non-Core Dry Hole Drilling at Cove Mesa, Arizona

Description: Abstract: A drilling program was conducted by the Atomic Energy Commission on Cove Mesa, Arizona to further develop uranium and vanadium ore reserves that are vital to the National Defense. The drilling was performed by the Minerals Engineering Company of Grand Junction, Colorado. Uranium and vanadium ore horizons are found in the Salt Wash member of the Morrison formation on Cove Mesa.
Date: June 16, 1952
Creator: Garcia, Raymond J.
Partner: UNT Libraries Government Documents Department

Uranium-Copper Deposits Near Copper Canyon Navajo Indian Reservation, Arizona

Description: From introduction: During the summer of 1951, Navajos conducted John W. Chester, Russell C. Cutter, and E. V. Reinhardt, Grand Junction Exploration Branch, U. S. Atomic Energy Commission, to a copper deposit in Copper Canyon. Little radioactivity was noted, and no further work was done in the area at that time. In October 1951, the same group of Navajos reported the discovery of uranium ore in another portion of the same area. The site was visited by Cutter who noted that an excavation made by the Navajos had disclosed a 3-foot thickness of low-grade uranium ore. In November 1951, Cutter again visited the area and observed that the Navajos had opened a 5-foot face of good ore.
Date: March 13, 1952
Creator: Reinhardt, E. V.
Partner: UNT Libraries Government Documents Department

Uranium Deposits on Mesas I 1/2 and II 1/2, Lukachukai Mountains, Northeast Arizona

Description: Abstract: Mesas 1 1/2 and II 1/2 were investigated in October 1951, to determine the extent and degree of uranium mineralization in the Salt Wash sandstone. Carnotite-vanoxite-type minerals are sufficiently concentrated to recommend 14,600 feet of drilling.
Date: October 24, 1951
Creator: Masters, John A. & Blum, Richard D.
Partner: UNT Libraries Government Documents Department

Geology and Drilling Recommendations Oak Spring Area Apache County, Arizona, and San Juan County, New Mexico

Description: Abstract: Uranium ore deposits on two exposed rims and past production records of tonnage and grade indicate an exploration program is justified in the Oak Springs area. A minimum of 24,000 feet of core drilling is recommended with a maximum of 75,000 feet to be based on favorability as determined by subsurface studies.
Date: April 3, 1952
Creator: Swanson, Melvin A. & Hatfield, Kenneth G.
Partner: UNT Libraries Government Documents Department

Geology and Mineralization of Hunt's Mesa, Monument Valley, Arizona, Navajo County with Recommendations for Exploration Drilling

Description: Abstract: Hunt's Mesa was examined on June 2 and 3, 1951, by the writer assisted by R. C. Cutter. Two channels were located and studied. Outcrops of the channels are mineralized, the mineralization being of the copper-uranium variety. There are indications that an appreciable quantity of ore can be found by exploration drilling. A program of 25,000 feet of wagon drilling is recommended.
Date: June 20, 1951
Creator: Chester, John W.
Partner: UNT Libraries Government Documents Department

Geology and Ore Deposits of Yazzie Mesa, Apache County, Arizona with Recommendations for Exploration Drilling

Description: Abstract: Yazzie Mesa was examined in May 1951, by the writer, assisted by R. C. Cutter. The mesa shows one main channel deposit and three minor channels. The main channel appears to be a northern extension of a channel deposit being worked by the Vanadium Corporation of America at their Monument No. 2 mine. Two samples taken on the south outcrop of the main channel assayed 0.16% U308 over 4.5 feet and 0.80% U308 over 1 foot. The area is recommended for 10,000 feet of exploration drilling. It is not intended to recommend this footage as a separate contract unit as this report covers only a small part of an area in which drilling will be recommended in forthcoming reports.
Date: June 19, 1951
Creator: Chester, John W.
Partner: UNT Libraries Government Documents Department

Results of Diamond Drilling Mesas 1, 2, 3, and 4, Lukachukai Mountains, Northeastern Arizona

Description: From purpose and scope: Diamond drill exploration of the Lukachukai district was undertaken to find minable bodies of uranium ore and to determine whether sufficient reserves were present to warrant construction of a local mill. A minimum of 30,000 feet and a maximum of 50,000 feet of drilling were assigned to block out ore in the discovery area, Mesa I (pl. 1.). It was anticipated that some of the footage might be used to test Mesa II should the area become accessible. With access to Mesas II and IV subsequently provided by roads constructed by F. A. Sitton, Inc., and access to Mesa III furnished by a road constructed by the Atomic Energy Commission, the area available for drilling was eventually increased by some three and a half times. With no increase in allotted footage, the hole density was correspondingly decreased,
Date: September 18, 1951
Creator: Stafford, Howard S.
Partner: UNT Libraries Government Documents Department