Report issued by the Bureau of Mines over magnetometer surveys conducted on iron deposits in Utah. Details of the deposits included in the survey are listed. The methods of testing each deposit are also presented. This report includes tables, maps, photographs, and illustrations.

Report issued by the Bureau of Mines over studies conducted on the characteristics of reservoir-oil sampled from San Juan County, Utah. The properties of each sample collected are presented. This report includes tables, graphs, maps, and illustrations.

From introduction: The compilation of the tectonic map of northern Colorado and northeastern Utah (area h, fig. 2) was done by the U. S. Geological Survey on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission. Structures shown on the map have been obtained from published geologic maps, and from unpublished data supplied by government agencies, private companies, and independent geologists. The various structures of the Foreland can be divided into three large classes to show the relation of uranium deposits to the structural pattern.

From page 3: Uraniferous fluorspar pipes cut Paleozoic dolomite in the western part of the Thomas Range, along a ridge known locally as "Spor's Mountain". The fluorspar district (fig. 1) is approximately 50 miles northwest of Delta, Utah, and is in Tps. 12, 13 N., R. 12 W., Salt Lake principal meridian. From July to September 1952 approximately 10 man-months were spent in the district. During this time, field work started in 1951 was completed. Mapping and sampling the fluorspar deposits was done in 1950 (reported in TEI-136). The entire uraniferous fluorspar district has now been mapped at a scale of 1 inch to 1, 000 feet, the complete stratigraphic section of the district has been measured in detail, and additional mine mapping and sampling has been done.

From introduction: The main objectives of the Red House Cliffs project are to appraise the uranium possibilities of the area, to determine the areal distribution and character of the ore-bearing Shinarump conglomerate and to prepare a geologic map of the area. The purpose of this preliminary report on the Red House Cliffs project is to summarize results of the field work done from July 6, 1952, to October 31, 1952, and to present plans for future work on the project. This work was done on behalf of the U. S. Atomic Energy Commission.

From introduction: Field work, begun in the field season of 1951, was continued by the U. S. Geological Survey in the White Canyon area, San Juan County, Utah, from May 1 to October 28, 1952, The objectives of this work were to study the habits and character of uranium deposits in the area, to determine control and guides to ore and suitable areas for physical exploration, and to map and study the ore-bearing and adjacent strata to determine the regional geologic controls and habits of the uranium deposits, The White Canyon project is part of a regional mapping program on the Colorado Plateau being conducted by the Geological Survey on behalf of the U. S. Atomic Energy Commission.

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.

From introduction: The reconnaissance was made during the summer of 1951 by two field parties: (1) a reconnaissance in parts of Oklahoma, Texas, New Mexico, and Arizona by Russell Gibson, and (2) Geological Survey reconnaissance in parts of New Mexico,.Colorado, Utah, Idaho, and Wyoming (by the writers), the results of which are summarized in this report.

From introduction: This report summarizes the results of diamond-drill and wagon-drill exploration by the U. S. Geological Survey in the Yellow Cat area from October 9, 1951, to May 22, 1952. The Yellow Cat area is about 10 miles southeast of Thompsons, Grand County, Utah. It is accessable by two graded roads which leave U. S. Highway 50 at points 5 miles east of Thompsons and 7 miles west of Cisco, Utah. A sampling plant and purchasing depot, belonging to the United States Vanadium Co., is at Thompsons. The explored ground includes about 8 square miles principally in T. 22 S., R. 22 E., and the northern part of T. 23 S., R. 22 E., Salt Lake meridian (fig. 1). Altitudes in the area range from about 4, 600 feet to 5, 100 feet (datum is assumed but is approximately correct), and the relief is moderate.

From abstract: These results demonstrate that the self-potential method is not satisfactory for locating and delineating sulfide-bearing uranium ore bodies under conditions similar to those in the Happy Jack area.

From abstract: Elk Ridge is in southeastern Utah in the central part of San Juan County. It forms a conspicuous ridge on the north end of the Monument upwarp. During the summer of 1953 field work was largely restricted to South Elk Ridge, that part of Elk Ridge which is south of The Notch. Permian and Triassic sedimentary rocks crop out in the area and Jurassic and Cretaceous rocks are exposed east of the area.

Abstract: A reconnaissance for radioactive minerals in the Shinarump conglomerate of Triassic age exposed north of the San Juan River at Balanced Rock anticline was made in July 1953. The purpose of the reconnaissance was to search for any exposed uranium minerals and to determine the favorability of the Shinarump for accumulation of uranium-ore deposits. No uranium minerals or places of abnormally high radioactivity were observed. However, nine exposed channels at the base of the Shinarump conglomerate and other channels, probably present where the base of the Shinarump is concealed, indicate the Shinarump may be favorable for uranium-ore deposits.

From abstract: In 1953 the U. S. Geological Survey started the present program of uranium investigations on behalf of the U. S. Atomic Energy Commission in the San Rafael Swell, Emery County, Utah. Two areas within the Swell were selected and studied; one in the vicinity of Temple Mountain and the other at Green Vein Mesa.

From abstract: The purpose of this preliminary electrical resistivity investigation of Holiday Mesa, Monument Valley region, San Juan County, Utah, was to determine the feasibility of a detailed survey to delineate channels cut into the Moenkopi formation and filled with sediments of Shinarump conglomerate. These structures are in many places related to the localization of uranium ore.

From introduction: Objectives of the geologic studies and mapping in this area are: 1) to study and map geologic formations in which uranium ore may be found with special attention given to the Triassic Shinarump conglomerate, 2) to evaluate uranium deposits and to study local controls and habits of ore, 3) to collect and study geologic data basic to an understanding of regional geologic trends or controls in the distribution of the ore deposits, and 4) to determine the favorableness of the area for concealed deposits of uranium. The present report does not attempt to provide answers to all these objectives. Rather, it is a brief explanatory report to accompany the geologic map (fig. 2) and make it available in advance of the final report.

From abstract: The purpose of the survey was twofold: to determine the trend of the Hideout Channel across Deer Flat and to delineate fractures cutting through the ore deposit at the Hideout mine.

From abstract: A refraction seismic survey was made on Holiday Mesa, San Juan County, Utah, between May 21 and June 11, 1954, prior to an exploratory drilling program made by the U.S. Atomic Energy Commission to delineate channel trends in the area.

From abstract: The secondary uranium minerals autunite, metatorbernite, uranophane (?), and schroeckingerite occur in altered hornfels at the East Slope No. 2 uranium prospect. The deposit, in sec. 6, T. 27 S., R. 3 W., Piute County, Utah, is about I mile west of the Bullion Monarch mine in the central producing area of the Marysvale uranium district. Hornfels, formed by contact metamorphism of bullion Canyon volcanic rocks along the edge of a quartz monzonite stock, is in fault contact with the later Mount Belknap rhyolite.

From abstract: The Bulloch group of uranium claims are in T. 40 S., R. 9 we, Kane County, Utah. The past production has been 8.5 tons of submarginal ore submitted to the Marysvale purchasing depot of the Atomic Energy Commission in 1950; this shipment assayed 0.16 percent U308, Uranium is finely disseminated in clay, carbonaceous clay, carbonized wood fragments, iron-oxide concretions, petrified logs, sandstone, and conglomerates of the lower part of"the Dakota sandstone and upper part of the Summerville formation. Small quantities of carnotite, autunite, and torbernite are exposed in the conglomerate and sandstone on Lynn Nos. 2 and 3 claims.

From abstract: This report describes the new workings and proposes that additional exploration be undertaken on the Papsy's Hope No. 2 property in Marysville, Utah.

From abstract: The secondary uranium minerals metatorbernite (?) and autunite (?) were discovered at Indian Creek in the spring of 1950. The deposits, in sec. 28, T. 27 S., R. 6 W., Beaver County, Utah, are 20 miles west of Marysvale, and about three-eighths of a mile east of a quartz monzonite stock.

First part of an annual report describing studies conducted by researchers at Columbia University to surveyuranium mineralization in the Marysvale, Utah region: "Part I deals with field studies and mineralogical data derived from the laboratory examination of suites collected during the previous summer" (p. 5).

From to the files: The Shinarump-Moenkopi contact on Oljetoh Mesa in the Monument Valley district, Arizona-Utah, was examined from November 5 to 15, 1951, to determine the location of and the mineralization in Shinarump channels. Twenty-seven distinct channel outcrops were located and examined. Three of these channel outcrops are mineralized and the remaining 24 are barren. Plate I shows the distribution of the Shinarump, the Moenkopi, and the DeChelly member of the Cutler formation; the location of the Shinarmp channel outcrops; the channel trend where there is good evidence for such a trend. The Hoskinrnini tongue of the Cutler was mapped with the Moenkopi as it is not a good mappable unit in this area. The three mineralized outcrops are indicated by the letters A, G, and AA while the barren outcrops bear the letters B to F and H to Z.

From to the files: To date, all the mineralization seen in the Monument Valley area in the Shinarump formation has been in scour channels. The mineralized rock occurs at or near the bottom of the channel. On Hoskinnini Mesa, all the channels examined to date contain some mineralized material. Channels observed may in some cases contain copper without apparent uranium mineralization; others definitely exhibit copper-uranium mineralization.