Number in brackets after reference citation refers to survey number found on the Aeromagnetic Index Map and in Table of Surveys.

• Balsley, J.R., 1952, Aeromagnetic surveying, in Landsberg, H.E., ed., Advances in geophysics: New York, Academic Press, v. 1, p. 313-349. [0134]

• Bromery, R.W., Galat, G.A., and Chandler, E.J., 1963,  Aeromagnetic map of the Joplin quadrangle, Prince William and Stafford Counties, Virginia: U.S. Geological Survey Geophysical Investigations Map GP-390, scale 1:24,000. [0370]

• Bromery, R.W., Galat, G.A., and Gilbert, F.P., 1963a,  Aeromagnetic map of the Belmont quadrangle, Orange and Spotsylvania Counties, Virginia: U.S. Geological Survey Geophysical Investigations Map GP-387, scale 1:24,000. [0352]

• Bromery, R.W., Galat, G.A., and Gilbert, F.P., 1963b, Aeromagnetic map of the Contrary Creek quadrangle, Louisa and Spotsylvania Counties, Virginia: U.S. Geological Survey Geophysical Investigations Map GP-389, scale 1:24,000. [0352]

• Bromery, R.W., Galat, G.A., and Gilbert, F.P., 1963c, Aeromagnetic map of the Lahore quadrangle, Louisa, Spotsylvania and Orange Counties, Virginia: U.S. Geological Survey Geophysical Investigations Map GP-386, scale 1:24,000. [0352]

• Bromery, R.W., Galat, G.A., and Gilbert, F.P., 1963d, Aeromagnetic map of the Mineral quadrangle, Louisa, Spotsylvania and Orange Counties, Virginia: U.S. Geological Survey Geophysical Investigations Map GP-388, scale 1:24,000. [0352]

• Cordell, Lindrith, Keller, G.R., and Hildenbrand, T.G., 1982, Bouguer gravity map of the Rio Grande Rift, Colorado, New Mexico, and Texas: U.S. Geological Survey Geophysical Investigations Series Map GP-949, scale 1:1,000,000.

• D'Appolonia Consulting Engineers, Inc., 1980, Hot dry rock geothermal evaluation, Cris-Wall site, eastern shore of Maryland and Virginia: Los Alamos Scientific Laboratory Report 78-356, 4 v. [VA19]

• Dater, D., Metzger, D., and Hittleman, A., 1999, Land and Marine Gravity CD-ROMs - 1999 Edition: National Oceanic and Atmospheric Administration, National Geophysical Data Center, Boulder, CO., two CD-ROMs, web site.

• Godson, R.H., and Plouff, Donald, 1988, BOUGUER, Version 1.0--A microcomputer gravity-terrain correction program: USGS Open-File Report 88-644; Part A, 13 p.; Part B, 1 computer diskette (5 1/4 in).

• Hildenbrand, T.G., 1983, FFTFIL-A filtering program based on two-dimensional Fourier analysis: U.S. Geological Survey Open-File Report 83-237, 60 p.

• Johnson, S.S., 1977, Gravity map of Virginia: simple Bouguer anomaly: Virginia Division of Mineral Resources, scale 1:500,000.

• Johnson, S.S., and Froelich, A.J., 1982, Aeromagnetic contour map of the Culpeper Basin and vicinity, Virginia: Virginia Division of Mineral Resources Publication 41, scale 1:125,000. [VA18]

• Neuschel, S.K., 1970, Correlation of aeromagnetics and aeroradioactivity with lithology in the Spotsylvania area, Virginia: Geological Society of America Bulletin, v. 81, no. 12, p. 3575-3582. [0532]

• Phillips, J.D., 1996, Potential-field continuation: past practice vs. modern methods: Society of Exploration Geophysicists Expanded Abstracts with Biographies, Technical Program, Nov. 10-15, 1996, v. 2, p. 1411-1414., available online as a PDF file.

• Phillips, J.D., 1997, Potential-field geophysical software for the PC, version 2.2: U.S. Geological Survey Open File Report 97-725, online.

• Sweeney, R.E., 1990, IGRFGRID--A program for creation of a total magnetic field (International Geomagnetic Reference Field) grid representing the earth's main magnetic field: U.S. Geological Survey Open File Report 90-45, A-B, 37 p., 1 diskette.

• U.S. Geological Survey, 1971a, Aeromagnetic map of the Danville quadrangle, Pittsylvania County, Virginia, and Caswell County, North Carolina: U.S. Geological Survey Geophysical Investigations map GP-745, scale 1:62,500. [0647]

• U.S. Geological Survey, 1971b, Aeromagnetic map of the Milton quadrangle, Halifax and Pittsylvania Counties, Virginia, and Caswell and Person Counties, North Carolina: U.S. Geological Survey Geophysical Investigations Map GP-746, scale 1:62,500. [0647]

• U.S. Geological Survey, 1972, Aeromagnetic map of southeastern Virginia: U.S. Geological Survey Open-File Report 72-389, scale 1:250,000. [3010]

• U.S. Geological Survey, 1980, Aeromagnetic map of Fairfax County, Virginia: U.S. Geological Survey Open-File Report 80-813, scale 1:48,000. [3076]

• U.S. Geological Survey, 1994, Residual aeromagnetic map of the Danville area, Virginia and North Carolina: U.S. Geological Survey Open-File Report 94-219, 2 sheets, scale 1:100,000. [4156]

• U.S. Geological Survey, 1999, Digitized aeromagnetic datasets of the conterminous United States, Hawaii, and Puerto Rico: U.S. Geological Survey Open-File Report 99-557, CD-ROM and online.

• U.S. Geological Survey and National Geophysical Data Center, 2002, Digital aeromagnetic datasets for the conterminous United States and Hawaii - A companion to the North American Magnetic Anomaly Map: U.S. Geological Survey Open-File Report 02-361, DVD;  also web-site http://pubs.usgs.gov/of/2002/ofr-02-361/

• Virginia Division of Mineral Resources, 1962, Interpretation of airborne magnetometer survey in southwest Virginia [Area H]: Charlottesville, Va., Virginia Division of Mineral Resources Open-File Report, 36 p., 12 sheets, scale 1:100,000 and 1:250,000. [VA04]

• Virginia Division of Mineral Resources, 1966, Magnetic and radiometric data, southwest Piedmont of Virginia [Area G]: Virginia Division of Mineral Resources Information Circular 12, 4 sheets, scale 1:62,500. [VA05]

• Virginia Division of Mineral Resources, 1969, Total intensity aeromagnetic contour maps of eight 15' quadrangles in south-central Virginia [Area F - Callands, Chatham, Draper, Endicott, Floyd, Martinsville, Riceville, and Rocky Mount quadrangles]: Charlottesville, Va., Virginia Division of Mineral Resources Open-File Maps, scale 1:62,500. [VA06]

• Virginia Division of Mineral Resources, 1970, Total intensity aeromagnetic contour maps of fifteen 15' quadrangles in central Virginia [Area E - Altavista, Amherst, Appomattox, Boones Mill, Buckingham, Dillwyn, Farmville, Gladys, Goode, Lovingston, Lynchburg, Moneta, Pamplin City, Shipman, and Vesuvius quadrangles]: Charlottesville, Va., Virginia Division of Mineral Resources Open-File Maps, scale 1:62,500. [VA07]

• Virginia Division of Mineral Resources, 1971, Total intensity aeromagnetic contour maps of thirteen 15' quadrangles in central Virginia [Area B - Columbia, Covesville, Fredericks Hall, Front Royal, Gordonsville, Lakeside Village, Lawrenceville, Powhatan, Rapidan, Scottsville, Skinquarter, Sperryville, and Wellville quadrangles]: Charlottesville, Va., Virginia Division of Mineral Resources Open-File Maps, scale 1:62,500. [VA08]

• Virginia Division of Mineral Resources, 1972, Total intensity aeromagnetic contour maps of fifty-two 15' quadrangles in northwestern Virginia [Areas C & D - Blacksburg, Bland, Bluefield, Broadway, Buena Vista, Callaghan, Capon Bridge, Cass, Charlottesville, Clifton Forge, Craigsville, Eagle Rock, Edinburg, Elkton, Elliston, Fort Seybert, Gerrardstown, Harrisonburg, Lexington, Mt. Jackson, Mack's Mtn., Madison, Max Meadows, McDowell, Middletown, Millboro, Monterey, Narrows, Natural Bridge, Newcastle, Orkney Springs, Parnassus, Peaks of Otter, Pearisburg, Petersburg, Pulaski, Radford, Roanoke, Ronceverte, Salem, Speedwell, Spruce Knob, Staunton, Stony Man, Strasburg, University, Waiteville, Wardensville, Warm Springs, Waynesboro, Williamsville, and Winchester quadrangles]: Charlottesville, Va., Virginia Division of Mineral Resources Open-File Maps, scale 1:62,500. [VA09, VA10]

• Webring, Michael, 1981, MINC: A gridding program based on minimum curvature: U.S. Geological Survey Open-File Report 81-1224, 43 p.

• Xia, Jianghai, Sprowl, D.R., and Adkins-Heljeson, Dana, 1993, Correction of topographic distortions in potential-field data: A fast and accurate approach: Geophysics, v. 58, no. 4, p. 515-523.

• Zietz, Isidore, Calver,J.L., Johnson, S.S., and Kirby,J.R., 1977a, Aeromagnetic map of Virginia: U.S. Geological Survey Geophysical Investigations Map GP-915, scale 1:500,000.

• Zietz, Isidore, Calver,J.L., Johnson, S.S., and Kirby,J.R., 1977b, Aeromagnetic map of Virginia: In Color: U.S. Geological Survey Geophysical Investigations Map GP-916, scale 1:1,000,000.

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