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Albion-Scipio Fault Trend (IN, MI, OH) [A1001]

Survey Size: 12,100 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 6-mile spacing Elevation: 2,000 feet barometric Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma Date Flown: October, 1985, to February, 1986 Data Provided: Total Magnetic Intensity (IGRF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles,

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Rome Trough, (WV) [A1041]

Survey Size: 24,500 miles Flight Lines: Northwest-Southeast, 4,500 feet spacing Tie Lines: Northeast-Southwest, 5 miles spacing Elevation: 3,000 feet barometric Instrumentation: Scintrex cesium vapor magnetometer Date Flown: October 1991 to February 1992 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,

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Eastern Arkoma Basin (AR) [A1014]

Survey Size: 25,150 miles Flight Lines: East-West, ½- to 1-mile spacing Tie Lines: North-South, 5-mile spacing Elevation: 2,500 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.1 gamma Date Flown: April to September, 1983 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)

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