Survey Size: 1,800 miles Flight Lines: East-West, 1-mile spacing Tie Lines: North-South, 1-mile spacing Elevation: 1,800 miles Instrumentation: Geometrics G-813 magnetometer Date Flown: 1993 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on paper (optional) CD/DVD with Flight Line […]
Data for the four individual blocks have been integrated using a grid-based differential continuation onto a sloping plane (1500′ above sea level SE to 3700′ above sea level NW) to produce a single grid over the entire survey area. This gridded data set with maps is available as an optional deliverable. Survey Size: 5,198 line […]
Sampling rate: 0.25 seconds Survey Size: 7,350 miles Flight Lines: N70-W, 1-mile spacing Tie Lines: N20-E, 4-mile spacing Elevation: 500 feet above mean terrain Instrumentation: High-sensitivity, optically pumped magnetometer Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on paper […]
Processing: Pearson, deRidder and Johnson, Inc. of Lakewood, Colorado Survey Size: 11,490 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, ½-mile spacing Elevation: 300 feet above mean terrain Instrumentation: High-sensitivity, optically pumped Cesium Vapor magnetometer with 0.25-second sampling Date Flown: 1987 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole […]
