Airborne gamma-ray spectrometer and magnetometer survey: Rockford Quadrangle, Aurora Quadrangle (IL), Madison Quadrangle (WI). Final report
An airborne combined radiometric and magnetic survey was performed for the Department of Energy (DOE) over the area covered by the Madison, Rockford, and Aurora, 1:250,000 National Topographic Map Series (NTMS), quadrangle maps. The survey was part of DOE's National Uranium Resource Evaluation (NURE) program. Data were collected by a helicopter equipped with a gamma-ray spectrometer with a large crystal volume, and with a high sensitivity proton precession magnetometer. The radiometric system was calibrated at the Walker Field Calibration pads and the Lake Mead Dynamic Test Range. Data quality was ensured during the survey by daily test flights and equipment checks. Radiometric data were corrected for live time, aircraft and equipment background, cosmic background, atmospheric radon, Compton scatter, and altitude dependence. The corrected data were statistically evaluated, plotted, and contoured to produce anomaly maps based on the radiometric response of individual geological units. The anomalies were interpreted and an interpretation map produced. Volume I contains a description of the systems used in the survey, a discussion of the calibration of the systems, the data collection procedures, the data processing procedures, the data presentation, the interpretation rationale, and the interpretation methodology. A separate Volume II for each quadrangle contains the data displays and the interpretation results.
- Research Organization:
- High Life Helicopters, Inc., Puyallup, WA (USA)
- DOE Contract Number:
- AC13-79GJ01692
- OSTI ID:
- 6351784
- Report Number(s):
- GJBX-181-81Vol.1; ON: DE81026342; TRN: 81-013080
- Resource Relation:
- Other Information: Includes 68 sheets of 48x reduction microfiche
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ILLINOIS
MAGNETIC SURVEYS
RADIOMETRIC SURVEYS
URANIUM DEPOSITS
AERIAL PROSPECTING
WISCONSIN
POTASSIUM
STATISTICAL DATA
THORIUM
URANIUM
ACTINIDES
ALKALI METALS
DATA
ELEMENTS
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
GREAT LAKES REGION
INFORMATION
METALS
MINERAL RESOURCES
NORTH AMERICA
NUMERICAL DATA
PROSPECTING
RESOURCES
SURVEYS
USA
050200* - Nuclear Fuels- Exploration- (-1987)