The following preliminary report is a computer analysis of HSSR data from the Montrose 1x2 Quadrangle, Colorado.

A high sensitivity airborne radiometric and magnetic survey of the Rice Like, Iron Mountain, Eau Claire and Green Bay 1:250,000 NMTS Quadrangles within the states of Wisconsin, Michigan, and Minnesota. A total of 10,340 line miles of high sensitivity radiometric and magnetic data were collected within these quadrangles. Traverse lines were flown at a spacing of 3.125 miles in an east/west direction at a 18.375 miles seperation. All data were collected utilizing a fixed wing aircraft and over 3,500 cubic inches of Nal crystal detector. Magnetometer data were collected utilizing a high sensitivity proton magnetometer. Data were recorded digitally at 1.0 second intervals aboard the aircraft. Navigation was performed using both visual and doppler techniques. All data presented in this report as corrected profiles of all radiometric variables, magnetic data, radar and barometric altimeter data, air temperature and airborne bismuth contributions. Radiometric data presented are corrected for Comptron Scatter, altitude dependence and atmospheric Bismuth. These data are also presented on microfiche, and digital magnetic tapes. In addition, anomaly maps and inerpretation maps are presented in relating known geology or soil distribution to the corrected radiometric magnetic data.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Eau Claire Quadrangle in Wisconsin and Minnesota.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Eau Claire Quadrangle in Wisconsin and Minnesota.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Green Bay Quadrangle in Wisconsin.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Green Bay Quadrangle in Wisconsin.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Iron Mountain Quadrangle in Wisconsin and Michigan.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Rice Lake Quadrangle in Wisconsin.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Rice Lake Quadrangle in Wisconsin.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Iron Mountain Quadrangle in Wisconsin and Michigan.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Eureka quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Eureka quadrangle in California.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Eureka quadrangle in California.

Report detailing areas with anomalous geochemical characteristics indicative of mineral occurrences or deposits that have been identified using statistical and cartographic techniques developed during the National Uranium Resource Evaluation (NURE) program.

Tables presenting statistics for reconnaissance, detailed, and combined stream-sediment data derived from samples collected from the Mt. Harvard 15-minute quadrangle.

Tables presenting factor analysis of reconnaissance, detailed, and combined stream-sediment samples collected from the Mt. Harvard 15-minute quadrangle.

Tables presenting the results of stepwise multiple regression analysis applied to the stream-sediment data sets for the Mt. Harvard 15-minute quadrangle, using uranium as the dependent variable.

The study was conducted to demonstrate the applicability of National Uranium Resource Evaluation geochemical and geophysical data required

Maps showing the locations of samples collected from the Mt. Harvard 15-minute quadrangle along with the associated National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) and Aerial Radiometric and Magnetic (ARM) survey data (see page 1 of report).

Tables containing laboratory assay data for samples collected from concrete samples collected during the time of the construction of four spectral gamma-ray borehole calibration models. Samples were assay for concentrations of potassium, uranium, and thorium. See pages A-1 and A-2 of report.

Tables showing neutron profiles as both a data listing and a profile plots for moisture in models measured using an epithermal neutron-neutron probe from the Calibration Facilities Monitoring System (CFMS). See pages B-1 to B-4 of report.

Tables showing spectral-analysis data acquired from a high-purity germanium (HPGe) detector used in the enriched zones of spectral gamma-ray borehole calibration models. See pages C-1 to C-3 of report.

Tables presenting data acquired via a sodium iodide (NaI) detector used in the mid-enriched zone of each spectral gamma-ray borehole calibration model. See pages D1 - D3 of report.

Abstract: This report documents the work performed to determine the newly assigned concentration for the spectral gamma-ray borehole calibration models. Thirty-two models, maintained by the U.S. Department of Energy, are included in this study, and are grouped into eight sets of four models each. The eight sets are located at sites across the United States, and are used to calibrate logging instruments. The assignments are based on in-situ logging data to ensure self-consistency in the assigned concentrations, and on laboratory assays of concrete samples from each model to provide traceability to the New Brunswick Laboratory (NBL) standards.