Category Archives: Aeromagnetic Surveys

North-Eastern Nevada [A1025]

Most of Nevada is covered by proprietary, nonexclusive aeromagnetic data flown between 1978 and 1988. These aeromagnetic data are superior to those available in the public domain for several reasons. The surveys were flown to uniform specifications; the profile data are available and are in digital form; the surveys were flown on a square grid,

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Wind River Basin, (WY) [A1057]

Survey Size: 14,800 miles Flight Lines: N45-E, 3,700-foot spacing Tie Lines: N45-W, 5-mile spacing Elevation: 7,000 feet barometric Instrumentation: Cesium Vapor magnetometer Date Flown: April to June, 1998 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)

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West-Central Ohio, Area C [A1055]

Survey Size: 400 miles Flight Lines: North-South, 1/2-mile spacing Tie Lines: East-West, 5-mile spacing Elevation: 2,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.01 gamma Date Flown: May, 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, on paper (optional)

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West-Central Ohio, Area B [A1054]

Survey Size: 4,030 Miles Flight Lines: East-West, 4,000 ft spacing Tie Lines: North-South, 5-mile spacing Elevation: 2,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.01 gamma Date Flown: February, 1994 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

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West-Central Ohio, Area A [A1053]

Survey Size: 6,600 miles Flight Lines: East-West, 1/2-mile spacing Tie Lines: North-South, 1-mile spacing Elevation: 2,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.01 gamma Date Flown: January, 1984 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)

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Waulsortian Mounds, ND [A1052]

Survey Size: 3,600 line miles Flight Lines: East-West, ¼-mile Tie Lines: North-South, ½-mile Elevation: Approximately 700 feet, modified drape 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 and grids Total Cost:

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Washakie – Red Desert Basins and Rock Springs Uplift, (WY) [A1051]

Survey Size: 15,800 miles Flight Lines: North-South, 4,000 feet spacing Tie Lines: East-West, 5 miles spacing Elevation: 8,000 feet barometric Instrumentation: Cesium vapor magnetometer Date Flown: July-October 1995 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)

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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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Southeastern Colorado [A1047]

Survey Size: 23,500 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 10-mile spacing Elevation: 6,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.1 gamma Date Flown: April to June, 1984 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

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Southeast Carlin Trend Survey, (NV) [A1046]

Survey Size: 24,285 line miles Flight Lines: Northeast-southwest, ⅛-mile (200 m) Tie Lines: ½-mile, northwest-southeast Elevation: Approximately 500 feet, draped Date Flown: 3/15/97 to 6/12/97 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

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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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Serpentine Plug Play, (TX) [A1043]

Mileage: North block: (not available) Central block: 3,514 line miles South block: 2,340 line miles Survey Size: 11,218 miles Flight Lines: NNE-SSW, ¼-mile spacing Tie Lines: WNW-ESE, 5-mile spacing Elevation: 500 feet above ground level Instrumentation: Optically pumped, Cesium-vapor magnetometer, ¼-second sampling Date Flown: February, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map

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Rough Creek Graben, (KY) [A1042]

Survey Size: 4,225 miles Flight Lines: East-West, 1-mile spacing Tie Lines: North-South, 1-mile spacing Elevation: 1,000 feet barometric with drape over higher elevations Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma Date Flown: October, 1984 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient

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Roberts Mountains Survey, (NV) [A1040]

Survey Size: Approximately 14,358 line miles Flight Lines: Northeast-Southwest, ⅛-mile Tie Lines: ½-mile, northwest-southeast Elevation: Approximately 500 feet, draped Date Flown: 12/17/94 to 8/20/95 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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Republic and Toroda Creek Grabens, (WA) [A1038]

A detailed aeromagnetic survey of the Republic and Toroda Creek grabens was flown by Hunting Geophysical Services, Inc. in 1959. Five 15-minute quadrangles were surveyed. (See location map overleaf.) The data were published by the Washington Division of Mines and Geology in 1960. The publication is now out of print. EDCON-PRJ has digitized the maps

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Powder River Basin, WY [A1037]

Survey Size: 32,650 miles Flight Lines: East-West, ½- and 1-mile spacing Tie Lines: North-South, 5- and 10-mile spacing Elevation: 5,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.05 gamma Date Flown: August to November, 1984, and June to August, 1985 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map

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Piceance-Axial Basins, (CO) [A1035]

Survey Size: 25,000 miles Flight Lines: North-South, ½ – and ⅔-mile spacing Tie Lines: East-West, 6-mile spacing Elevation: 8,000, 9,000, and 11,000 feet barometric, draped over higher elevations Instrumentation: Geometrics G-813 magnetometer Date Flown: June to August, 1987 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical

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Pecos and Terrell Counties, (TX) [A1034]

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

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Paradox Basin, (CO, UT) [A1033]

Survey Size: 27,565 miles Flight Lines: North-South, ½-mile spacing Tie Lines: East-West, 5-mile spacing Elevation: 8,000 feet barometric Instrumentation: Geometrics G-803 magnetometer, 0.1 gamma Date Flown: October, 1984, to April, 1985 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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Oklahoma-Kansas [A1031]

Survey Size: 24,400 miles Flight Lines: East-West, ½-mile to 7,000 feet spacing Tie Lines: North-South, 10-mile spacing Elevation: 2,500 feet barometric Date Flown: May to August, 1982 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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Northern Hugoton Embayment, KS [A1028]

EDCON-PRJ’s detailed aeromagnetic survey of the Northern Hugoton Embayment encompasses 92 townships in portions of Wallace, Greeley, Hamilton, Kearney, Wichita, and Logan Counties in western Kansas and in portions of Prowers, Kiowa, and Cheyenne Counties in eastern Colorado. Data were acquired by Airmag Surveys, Inc., of Philadelphia and processed by EDCON-PRJ. Survey Size: 6,925 miles

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Northern Green River Basin, WY [A1027]

EDCON-PRJ has acquired an aeromagnetic survey over the northern Green River Basin, covering 76 townships in Sublette and Sweetwater Counties, Wyoming. The data can be used to map lineaments, edges of structural bodies, and faulting/fracturing believed to be associated with basement structure and thought to be important contributors to hydrocarbon trapping in this portion of

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Northern D-J Basin, NE, CO [A1026]

Survey Size: 6,535 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 1-mile spacing Elevation: 300 feet terrain Instrumentation: Optically pumped Cesium-vapor magnetometer, 0.01 gamma 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

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North-Central Pennsylvania [A1024]

EDCON-PRJ flew a high-resolution aeromagnetic (HRAM) survey in north-central Pennsylvania in 2007. The original participants in the survey had proprietary use of the data for twelve months following delivery. This proprietary period ends July 10, 2008 when the data become available for license to interested parties. The area of the survey is as shown on

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North-Central Nevada, NV [A1023]

Survey Size: 19,669 line miles Flight Lines: Northeast-southwest, ⅛-mile Tie Lines: ½-mile, northwest-southeast Elevation: Approximately 500 feet, draped Date Flown: 10/1/95 to 12/10/95 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

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Upper Peninsula, MI [A1022]

Survey Size: 32,400 miles Flight Lines: NE-SW, ⅛ mile (200 meters) Tie Lines: NW-SE, 1 mile (1600 meters) Elevation: low level 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 and grids

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Lustre-Tule Creek Fields, MT [A1021]

Survey Size: 2,424 miles Flight Lines: East-West, 1-mile spacing Tie Lines: North-South, 20-mile spacing Elevation: 1,000 feet above ground level Instrumentation: Geometrics G-803 magnetometer Date Flown: March, 1984 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)

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Ellenburger Trend, Strawn Basin, TX [A1017]

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

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Eastern Oregon & Western Idaho [A1016]

Survey Size: Approximately 14,945 line miles Flight Lines: East-West, ¾-mile Tie Lines: North-South, 3-mile spacing Elevation: Approximately 5,500 to 6,000 feet barometric Data Provided: Maps, scale 1:24,000 Total Magnetic Intensity (TMI) Contour Map, IGRF-removed, showing the flight line locations, on paper Color Map of Reduced-to-Pole TMI, on paper Profile data and grids on CD-ROM Total

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East Texas Embayment [A1013]

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

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East-Central New York [A1012]

Survey Size: 5,154 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 1-mile spacing Elevation: 500 feet above ground level Instrumentation: High-sensitivity, optically pumped magnetometer Date Flown: 1999 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)

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Crescent Valley – Shoshone Range, NV [A1010]

Survey Size: 13,475 miles Flight Lines: N45°E,⅛-mi spacing; N45°W,¼-mi spacing Elevation: 300 & 500 feet above terrain Date Flown: 5/1/87 to 5/24/87 (Fill-in and Shoshone Range extension, 8/25/93 to 1/7/94) 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

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Central Michigan [A1008]

Survey Size: 34,944 miles Flight Lines: North-South, ½-mile spacing Tie Lines: East-West, ½-mile spacing Elevation: Three blocks, ranging from 2,200 to 2,800 feet barometric Instrumentation: High sensitivity, 0.05 gamma 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

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Burke County, ND [A1007]

Survey Size: 1,064 line miles, 265 square miles Flight Lines: North-South, ½-mile spacing Tie Lines: East-West, ½-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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Black Warrior Basin, MS [A1006]

Survey Size: 23,000 miles Flight Lines: Northeast-Southwest, 4,500 feet spacing Tie Lines: Northwest-Southeast, 5-mile spacing Elevation: 1,300 feet barometric with drape over higher elevations Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma Date Flown: February to May, 1990 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map

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Big Horn Basin, (MT, WY) [A1005]

Survey Size: 16,600 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 5-mile spacing Elevation: 6,700 feet barometric Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma Date Flown: A1004_A1005_A1010_A1018_A1023_A1040_A1046_nv_detailed, 1985, to January, 1986 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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Battle Mountain, NV [A1004]

Survey Size: Approximately 8,767 line miles Flight Lines: East-West, ⅛-mile (200 m) Tie Lines: 1-mile, north-south Elevation: Approximately 500 feet, draped Date Flown: 4/3/95 to 9/7/95 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

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Bakken Play, ND [A1003]

Survey Size: 2,900 line miles Flight Lines: East-West, 3,000-foot line spacing Tie Lines: North-South, 5-mile line spacing Elevation: 4,000 feet barometric Instrumentation: 0.01 gamma cesium vapor magnetometer Date Flown: November 1990 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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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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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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