The Russellville quadrangle in north central Arkansas overlies thick Paleozoic sediments of the Arkoma Basin. These Paleozoics dominate surface exposure except where covered by Quaternary alluvial materials. Examination of available literature shows no known uranium deposits (or occurrences) within the quadrangle. Eighty-eight groups of uranium samples were defined as anomalies and are discussed briefly. None were considered significant, and most appeared to be of cultural origin. Magnetic data show character that suggest structural and/or lithologic complexity, but imply relatively deep-seated sources.

Final report analyzing aerial gamma ray and magnetic data in the Baton Rouge quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Mobile quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the New Orleans and Breton Sound quadrangles, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Lake Charles and Port Arthur quadrangles, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

This report provides radiometric and magnetic data for the Springfield quadrangle in Missouri that was acquired and processed in May 1980. Appendix A provides a detailed summary of data acquisition, processing, interpretation, and presentation methods; Appendix B contains a flight summary report for the quadrangle.

This report provides radiometric and magnetic data for the Harrison quadrangle of southern Missouri and northern Arkansas that was acquired and processed in May of 1980. Appendix A provides a detailed summary of data acquisition, processing, interpretation, and presentation methods; Appendix B contains a flight summary report for the quadrangle.

This report provides radiometric and magnetic data for the Shreveport quadrangle in Louisiana that was acquired and processed in May and June of 1980. Appendix A provides a detailed summary of data acquisition, processing, interpretation, and presentation methods; Appendix B contains a flight summary report 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.

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.

This report provides radiometric and magnetic data for the Alexandria quadrangle between Louisiana and Texas that was acquired and processed in May and June of 1980. Appendix A provides a detailed summary of data acquisition, processing, interpretation, and presentation methods; Appendix B contains a flight summary report for the quadrangle.

The following report analyzes the aerial gamma ray and magnetic data taken from the Jackson quadrangle in Mississippi and Louisiana 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 Meridian 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.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Helena quadrangle including an analysis of the geology and interpretation of geophysical data.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Nashville quadrangle including an analysis of the geology and interpretation of geophysical data.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Tupelo quadrangle including an analysis of the geology and interpretation of geophysical data.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Russellville quadrangle including an analysis of the geology and interpretation of geophysical data.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Blytheville quadrangle including an analysis of the geology and interpretation of geophysical data.

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.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Columbia quadrangle including an analysis of the geology and interpretation of geophysical data.

Final report documenting a high-sensitivity airborne gamma ray and magnetic survey of the Fort Smith quadrangle including an analysis of the geology and interpretation of geophysical data.

The following report analyzes the aerial gamma ray and magnetic data taken from the Hattiesburg quadrangle in Mississippi, Alabama, and Louisiana 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 Natchez quadrangle in Mississippi and Louisiana 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.