Author Archives: Nathan Campbell

Uinta Basin, (UT) [A1049]

Survey Size: 13,100 miles Flight Lines: North-South, 1 kilometer spacing Tie Lines: East-West, 2 kilometer spacing Elevation: 500 feet above ground level Instrumentation: High-sensitivity Cesium vapor 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 (optional) CD/DVD

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Texas-Oklahoma Panhandles [A1048]

Survey Size: 45,500 miles Flight Lines: East-West, ½-mile 1-mile, and 2,250 feet spacing Tie Lines: North-South, 5-mile spacing Elevation: 4,700 feet barometric, draped over higher elevations Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma sensitivity Date Flown: December, 1985, to April, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI

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Sheridan County, MT [A1044]

Survey Size: 4,500 line miles, 1,008 square miles Flight Lines: North-South, ¼-mile spacing Tie Lines: East-West, 5-mile spacing Elevation: 300 feet mean terrain clearance 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

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Arizona-New Mexico [A1002]

Survey Size: 88,700 line miles Line Spacing: 0.33 mi primary 5.0 mi tie lines Line Direction: North-south Data Provided: Maps, mylar 1:24,000; Total Magnetic Intensity, Flight Line locations CD/DVD with profile data and grids Various operator maps (optional) Vertical Gradient anomaly contour map (optional) Shadowgraphs, color maps (optional) Interpretation (optional) Total Cost: Please contact for

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