From abstract: "In this report the mineralogy and uranium contents of southeast phosphates are discussed with reference to the lithologic units of the Hawthorn and Bone Valley formations and to waste slimes. In addition, the immediate problem of sampling leached-zone rock for process development studies is discussed and plans for future work (fiscal 1953) are presented."

Report describing the geology and structural features of the Comet area of Jefferson County, Montana.

A preliminary report regarding the Comet Area, in the Jefferson City Quadrangle Jefferson County, Montana. This report contains work done on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission.

From abstract: The Legin group area comprises five privately owned claims, nine Government claims, and some public land. The area is in parts of secs. 28 and 29, T. 43 N., R. 19 W., New Mexico principal meridian, San Miguel County, Colo. It is about 45 miles from the Government mill at Monticello, Utah, and 50 miles from the Vanadium Corporation of America mill at Naturita, Colo. The Legin group area has yielded a total production of more than 18,000 short tons of carnotite ore that averaged 0.32 percent U30 and 2.5 percent V 205 . Most of this production was accomplished during the years from 1935 to 1944, and from 1949 to October 1951.

From introduction: This report details the reconnaissance for uraniferous lignites in North Dakota, South Dakota, Montana, and Wyoming during 1948 and 1949.

The following report covers a reconnaissance for new discoveries of radioactive lignite deposits in the Green River Basin and Uinta Basin of Wyoming and Utah where similar discoveries to previous studies in North Dakota, South Dakota, Montana, and Wyoming were made. Additionally, there were new prospects examined, as well as reconnaissance for uranium deposits.

Report discussing the reconnaissance for radioactive uraniferous rocks in parts of Colorado, Wyoming, and Utah. Regional geology of each area, results of regional reconnaissance, and miscellaneous prospects are included.

Report discussing a geological study performed to find uraniferous lignites in North Dakota, Eastern Montana, north-central Wyoming, and northwestern South Dakota. "Deposits of uraniferous lignites were discovered at Blue Buttes, eastern Montana; and at North Cave Hills, South Cave Hills, and at Slim Buttes in northwestern South Dakota."

Report discussing the U.S. Geological Survey's exploration from 1949 to 1951 of carnotite deposits in Outlaw Mesa, Colorado.

A report regarding carnotite resources of Outlaw Mesa, Mesa County, Colorado.

Report discussing studies regarding uraniferous lignite from the Mendenhall strip mine in Harding County. The geochemical and mineralogical properties of lignite was analyzed and discussed.

Report discussing the U.S. Geological Survey's investigation of carnotite deposits found at Club Mesa, Colorado.

From abstract: The Geological Survey has been studying the geology of uranium and thorium continuously since 1939, when it began a comprehensive investigation of the vanadium-uranium deposits of the Colorado Plateau. Greatly increased demand for uranium arising from the advent of controlled fission in 1942 resulted in widening of the study in 1944 to include other possible sources and in further expansion on behalf of the U. S. Atomic Energy Commission since 1947. The wide variety of materials investigated in this study are embraced by five somewhat arbitrary groups of related types of deposits as follows: (1) Igneous rocks, pegmatites, veins, and related deposits; (2) Deposits in sandstone of carnotite, copper-uranium, and other minerals; (3) Other consolidated sedimentary rocks; (4) Placers; and (5) Natural fluids.

Report describing the geology of the land-pebble phosphate district on the Gulf Coastal Plain of Florida. This district is mapped out and the formation of land-pebble phosphate deposits is shown.

Report discussing the distribution, composition, and origin of the phosphate deposits in the land-pebble district in the Gulf Coastal Plain of Florida.

From abstract: The land-pebble phosphate district of Florida is a part of the Gulf Coastal Plain. The geologic formations cropping out in the district are the Miocene Hawthorn, Pliocene Bone Valley, and Pleistocene terrace sands. The Bone Valley formation consists of a lower strongly phosphatic unit and an upper less phosphatic unit. This paper is concerned principally with the lower unit, which contains the bulk of the minable phosphate deposits of the district.

From abstract: Uranium assays of all the samples collected by the Geological Survey from the Chattanooga shale in east-central Tennessee and southern Kentucky from 1947 to 1949 are assembled here, and conclusions are drawn concerning the distribution of the uranium. The 1108 assays from 80 localities provide reasonably reliable information on the stratigraphic and regional variations of the uranium content.

Report discussing geophysical observations in parts of the Grants district of McKinley County, New Mexico. This study had the "dual objective of investigating the unusual occurrence of negative aeromagnetic anomalies in close association with airborne radioactivity anomalies, and of investigating other geophysical methods which might assist directly or indirectly in the search for uranium ores in the Grants district."

Report containing a topical index of U.S. Geological Survey trace elements with related reports, and a bibliography of U.S. Geological Survey Trace Elements with related reports.

Three maps illustrating distribution of metal deposits in metal-mining districts in Colorado. The first map is a geological survey indicating uranium deposits, rock characteristics, and the location of the Central Mining District in relationship to counties in Colorado. The second map shows pitchblende deposits and bostonite dikes in the Front Range Mineral Belt near Central City, Colorado. The third map near indicates the locations of pitchblende deposits alongside metal vein systems near Central City, Colorado

Report discussing an investigation of copper deposits in sandstone that were believed to be possibly uraniferous, and uraniferous asphaltite deposits.

Report discussing the U.S. Geological Survey's investigation of known uranium deposits in Grant County, New Mexico.

A report regarding uranium deposits located in Grant County, New Mexico. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

Geologic maps and structure sections of the Johnson Creek Quadrangle in Caribou County, Idaho. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.