Preliminary aeromagnetic map of the Nevada Test Site and vicinity, Nevada
As part of an effort to help geologically characterize a possible high-level nuclear waste repository at Yucca Mountain, a merged aeromagnetic map of the Nevada Test Site (NTS) and vicinity was prepared from eight separate aeromagnetic surveys. Each data set was compiled and merged by Kucks and Hildenbrand (1987) as part of a statewide aeromagnetic map of Nevada (Hildenbrand and Kucks, 1988). During processing each data set was gridded at a 1-km interval, and a geomagnetic reference field was removed. Prior to merging, each grid was either upward or downward continued to 1000 ft above the ground and datum shifts were applied, where necessary, to achieve an overall constant datum. The resulting map yields an integrated picture of the total magnetic field that is useful for identifying areas of further interest and for qualitative interpretation. However, quantitative interpretation should be made using the original data, because anomaly locations and relative amplitudes may have been altered slightly during computer processing. The final merged map was compared with the individual published maps to ensure that the location of major anomalies and magnetic trends were preserved. The average difference in anomaly positions for major anomalies is about 0.4 km, which is reasonable for a 1-km grid spacing. 13 refs.
- Research Organization:
- Geological Survey, Menlo Park, CA (United States)
- DOE Contract Number:
- AI08-78ET44802
- OSTI ID:
- 137896
- Report Number(s):
- USGS-OFR-89-446; TRN: 90:034906
- Resource Relation:
- Other Information: PBD: 1989
- Country of Publication:
- United States
- Language:
- English
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