Color copies of photomicrograph figures that accompany a report studying uranium in granites in the southwestern United States.

Chemical compositions of chlorite and sericite from one production well in the Roosevelt geothermal system have been determined by electron probe methods and compared with compositions of chlorite and sericite from porphyry copper deposits. Modern system sericite and chlorite occur over a depth interval of 2 km and a temperature interval of 250/sup 0/C.

Results obtained from a program designed to locate a low- or moderate-temperature geothermal resource that might exist beneath Hill Air Force Base (AFB), Ogden, Utah are discussed. A phased exploration program was conducted at Hill AFB. Published geological, geochemical, and geophysical reports on the area were examined, regional exploration was conducted, and two thermal gradient holes were drilled. This program demonstrated that thermal waters are not present in the shallow subsurface at this site. (MHR)

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ogden and Salt Lake City quadrangles including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

This report follows a 12-hole drilling program that was conducted on the northwestern flank of the San Rafael swell of eastern Utah.

"This report presents engineering details, statistics, and individual borehole histories of the 27 holes drilled for this project." (from Introduction)

Uranium deposits in the precambrian quartz-pebble deposits of the Raft River area in northwestern Utah and southcentral Idaho are examined. A total of 1214 geochemical samples were acquired for the study, particularly 334 water samples, 616 stream sediment samples, and 264 rocks.

This report is an issue of the original draft copy of the "Interim Staff Report on Uranium Exploration on the Colorado Plateau", dated June 1951. The original draft copy was only recently located and is being published at this time because of the interest in the contained historical content.

From introduction: This study is part of the United States Department of Energy's National Uranium Resource Evaluation Program to understand the geologic setting, amount, and availability of uranium resources within the boundaries of the United States.

This report describes an investigation of the effects of stream channelization on fish and macro-invertebrates in low gradient reaches of Blacksmith Fork River and the Logan River in the floodplain of Cache Valley in northern Utah. Channelization adversely affected both fish and macro-invertebrate populations and biomass, with the severity of impact directly related to the amount and duration of disturbance of the physical habitat.

Data collected as part of a report of Marysville, Utah including laboratory data on well water (pp. 1-3) and stream sediments (pp. 4-27) as well as field data (pp. 29-175).

Appendix containing color images of petrographic photomirographs to accompany a report about the San Rafael Swell drilling project in Utah.

Report documenting the results of chemical analysis for 422 water and 1552 sediment samples in the Vernal quadrangle, Utah/Colorado. It includes an overview of the area, methods, data analysis, and evaluation.

Supplementary data containing tabulated reconnaissance data and elemental concentrations in ground water, surface sediment, and surface water samples, in addition to areal distribution maps, histograms, cumulative frequency plots, and frequency distribution plots for elemental concentrations. Also included are site location maps for surface and ground water samples and a user's guide.This data accompanies a report on hydrogeochemical and stream sediment reconnaissance in Utah.

From abstract: "The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Cedar City National Topographic Maps, numbered NJ12-7 is presented in this report."

From abstract: This abbreviated data report presents results of ground water and stream/surface sediment reconnaissance in the National Topographic Map Series (NTMS) Salina 10 x 20 quadrangle. Surface sediment samples were collected at 1418 sites, at a target sampling density of one site per 13 square kilometers (five square miles). Ground water samples were collected at 143 sites. Neutron activation analysis (NAA) results are given for uranium and 16 other elements in sediments, and for uranium and 9 other elements in ground water. Mass spectrometry results are given for helium in ground water. Field measurements and observations are reported for each site. Analytical data and field measurements are presented in tables and maps.

From abstract: Results of the Marysvale detailed geochemical survey are reported. Field and laboratory data are presented for 397 stream sediment samples and 160 radiometric readings. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.

Microfiche of Field and Laboratory Data for a report regarding stream sediment detailed geochemical survey for Marysville, Utah.

Tabulated data gathered at surface sediment and ground water sites in the Escalante quadrangle, including applicable reconnaissance measurements and elemental analyses.

Detailed descriptions of the data report for Richfield quadrangle, including (1) sample collection and field measurements, (2) formats, abbreviations, and codes in the data tables, (3) graphs and maps, and (4) quality assurance programs for sample collection and analysis.

Data gathered at sediment sampling sites in the Delta quadrangle, including applicable areal maps, histograms, elemental frequency plots, scintillometer readings, and other data.

Data gathered at ground water sites in the Elko quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.

Tabulated data gathered at surface sediment and ground water sites in the Richfield quadrangle, including applicable reconnaissance measurements and elemental analyses.

Data gathered at stream sediment sites in the Cottonwood project area, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.