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 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.

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

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

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

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

From introduction: This final report .is organized in two logical sections: (a) Volume I, containing the survey description, specifications, data processing methods, interpretation methods, regional geologic review and regional survey results and (b) one volume, Volume II, for each of the three quadrangles covered by the Raton Basin Project Area. Each Volume II contains a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables.

From introduction: This volume contains information and survey results pertaining specifically to the Shelby NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

Appendix containing tables to accompany a report on aerial radiometric and magnetic reconnaissance survey of the Shelby Quadrangle.

From introduction: This volume contains information and survey results pertaining specifically to the Havre NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

Appendix containing tables to accompany a report on aerial radiometric and magnetic reconnaissance survey of the Havre Quadrangle.

From introduction: This volume contains information and survey results pertaining specifically to the Lewistown NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

Appendix containing tables to accompany a report on aerial radiometric and magnetic reconnaissance survey of the Lewistown Quadrangle.

From introduction: This volume contains information and survey results pertaining specifically to the Twin Falls NTMS 1:250,000 scale Quadrangle, Idaho, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

Appendix containing tables to accompany a report on aerial radiometric and magnetic reconnaissance survey of the Twin Fallas Quadrangle.

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

Final report documenting a high-sensitivity airborne radiometric and magnetic survey in the Great Plains and Central Lowlands regions, including background information, a description of methods, data reduction and analysis, and data presented in maps, tables, and graphical forms.

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

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

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

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

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

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