The following report analyzes the aerial gamma ray and magnetic data taken from the El Dorado quadrangle in southern Arkansas that was compiled in 1980. This report contains a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

The following report analyzes the aerial gamma ray and magnetic data taken from the Greenwood quadrangle in southeastern Arkansas that was compiled in 1980. This report contains a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

The following report analyzes the aerial gamma ray and magnetic data taken from the Memphis quadrangle in Arkansas, Missouri, and Tennessee that was compiled in 1980. This report contains a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

The following report analyzes the aerial gamma ray and magnetic data taken from the West Point quadrangle in Mississippi and Alabama that was compiled in 1980. This report contains a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

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

From Operations: For the Flagstaff quadrangle, a total of 1930 line miles, excluding reflights and overlaps and missing data were flown by the Tracker and 1348 line miles were flown by the helicopter. The production summary presented below and the detailed daily production in Appendix B describes half of the total project. The Raton Basin Project, of which this quadrangle is a part, covered five other 10 x 2 quadrangles which was or will be covered in separate reports.

From abstract: From September 15 to September 28, 1978, geoMetrics, Inc., collected 4320 line miles of high sensitivity airborne radiometric and magnetic data in Wyoming and Nebraska within two 1° x 2° NTMS quadrangles (Torrington and Casper).

This report is the first volume of a two-part set documenting the results of the analyses of the airborne gamma radiation and total magnetic field survey that was flown for the Austin National Topographic Map NH14-6.

Final report documenting a high-sensitivity airborne gamma radiation and magnetic field survey of the Brownsville and McAllen National Topographic Map segments including a description of the program and results.

From introduction: Geodata International, Incorporated, conducted an airborne gamma ray and total magnetic field survey which covered a region of North Texas, New Mexico and Oklahoma. The specific area of this report as outlined on Figure 1 was surveyed from an aircraft using large-volume radiation detectors with computer controlled airborne equipment. Each map line was flown in an east-west direction with an average length of 120 miles and each tie line was flown in a north-south direction with an average length of 69 miles. Map lines and tie lines were surveyed spaced at intervals indicated on Figure 2. The data for the total area of Figure 1 were gathered between March-July, 1976.

From introduction: Geodata International, Incorporated, conducted an airborne gamma ray and total magnetic field survey which covered a region of North Texas, New Mexico and Oklahoma. The specific area of this report as outlined on Figure 1 was surveyed from an aircraft using large-volume radiation detectors with computer-controlled airborne equipment. Each map line was flown in an east-west direction with an average length of 120 miles and each tie line was flown in a north-south direction with an average length of 69 miles. Map lines and tie lines were surveyed spaced at intervals indicated on Figure 2. The data for the total area of Figure 1 were gathered between March-July, 1976.

From objective and plan: The airborne data gathered were reduced using ground-based computer facilities to give the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units indicated from available geologic maps. Results of analyses of these field data are presented as profile plots of the gamma radiation and earth's magnetic field.

The airborne data gathered were reduced using ground-based computer facilities to give the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units indicated from available geologic maps. Results of analyses of these field data are presented as profile plots of the gamma radiation and earth's magnetic field.

Final report documenting a survey of the Durango quadrangle in Colorado as part of the Platoro Caldera detail survey. This volume outlines survey and analysis methods, and summarizes results.

This report documents a complete summary on the high sensitity airborne gamma-ray spectrometer and magnetometer survey over the Durango quadrangle.

The following abbreviated data report presents results of ground water and stream/surface sediment reconnaissance in the Delta quadrangle, Utah.

This abbreviated data report presents results of surface geochemical reconnaissance in the Dan River-Danville Triassic Basin of north-central North Carolina and south-central Virginia

This report explains the development of data enhancement and display techniques for geochemical data in the Hydrochemical and Stream Sediment Reconnaissance (HSSR) surveys taken in the Winston-Salem quadrangle in North Carolina, Virginia, and Tennessee.

"This report presents engineering details, statistics, individual borehole histories and geophysical logs of the seven holes drilled in the Missoula/Bitterroot Drilling Program." (from Introduction)

The following data report presents results of ground water and surface sediment reconnaissance in the Escalante quadrangle, Utah.

This report presents the results of a small study in the Greenville quadrangle

The final report regarding the National Logging Program for the National Uranium Resource Evaluation.

This report summarizes and interprets the data dro about 500 stream sediment samples, 500 stream water samples, and 500 ground water samples, each analyzed for 40 to 50 elements.

The following report gives detailed results of the geochemical survey taken in Buffalo-Lignite, South Dakota. Field and laboratory data are presented for 163 groundwater and 660 stream sediment samples collected within the Custer and Slim Buttes project areas.