Virginia Aeromagnetic Index Map and Data Table
Note: The small unlabeled green areas in the northeastern part of the state are all part of Project No. 350.
The Virginia aeromagnetic compilation map contains data from 23 separate aeromagnetic surveys and digitized maps. This map is an index to the location and flight line spacing of the original surveys. The tabular index below provides a summary of the data sources. References are listed in the bibliography. Selected digital data are available from the National Geophysical Data Center (NGDC), Boulder, Colorado. Files of digitized analog surveys may be downloaded from the USGS site: http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0557/html/mag_home.htm. Digital flight line data for most surveys flown since about 1973 are available from the USGS site: http://pubs.usgs.gov/of/2002/ofr-02-361/.
Table of Virginia Aeromagnetic Surveys
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| 0134 | M-A | Fairfax | USGS | 02/48 | 0.25 mi. | N-S | 500 AG | Adv.Geoph.v.1 |
| 0350 | M/R-A | Ft. Belvoir ARMS | USGS | 02/60-05/60 | 1 mi. | E-W | 500 AG | Unpublished |
| 0352 | M-A | Spotsylvania '60 | USGS | 05/60 | 0.5 mi. | E-W | 500 AG | GP-386-389 |
| 0370 | M-A | Quantico Detail | USGS | 04/60 | 0.5 mi. | E-W | 500 AG | GP-390 |
| 0532 | M-A | Spotsylvania '64 | USGS | 01/64 | 0.5 mi. | E-W | 500 AG | GSA Bull. v. 81 |
| 0647 | M-A | Milton-Roxboro | USGS | 08/68 | 0.5 mi. | E-W | 400 AG | GP-745-746 |
| 1138 | M/R-D | Frederick-Washington South | USGS | 07/89-08/89 | 0.125 mi. | E-W | 500 AG | Unpublished |
| 1139 | M/R-D | Frederick-Washington North | USGS | 08/89 | 0.125 mi. | E-W | 500 AG | Unpublished |
| 3010 | M-A | Southeast Virginia | Geoterrex | 04/72-05/72 | 2 mi. | E-W | 500 AG | OF 72-389 |
| 3068 | M/R-A | Dahlgren | LKB | 06/75 | 0.5 mi. | E-W | 500 AG | Unpublished |
| 3076 | M/R-D | Fairfax County | LKB | 07/75-09/75 | 0.5 mi. | E-W | 500 AG | OF 80-813 |
| 4156 | M/R-D | Danville | BGM | 03/94 | 0.5 mi. | E-W | 400 AG | OF 94-219 |
| VA04 | M-A | Southwest Virginia | Aero | 02/62-04/62 | 1.5 mi. | NW-SE | 5000 B | VA Map H |
| VA05 | M/R-A | Southwest Piedmont | Aero | 06/65 | 0.5 mi. | NW-SE | 500 AG | VA Map G |
| VA06 | M-A | South-central Piedmont | Scintrex | 04/69-05/69 | 0.5 mi. | E-W | 500 AG | VA Map F |
| VA07 | M-A | Roanoke Quad. | LKB | 04/70-05/70 | 0.5 mi. | E-W | 500 AG | VA Map E |
| VA08 | M-A | Piedmont Areas | LKB | 03/71-04/71 | 0.5 mi. | E-W | 500 AG | VA Map B |
| VA09 | M-A | Western Virginia | LKB | 04/72-06/72 | 0.5 mi. | E-W | 500 AG | VA Maps C&D |
| VA10 | M-A | Appalachian Strip | LKB | 04/72-06/72 | 3 mi. | E-W | 5000 B | VA Maps C&D |
| VA16 | M/R-D | S.-Central Piedmont Rad (R5) | GeoMet. | 05/80 | 0.5 mi. | E-W | 500 AG | Unpublished |
| VA17 | M/R-D | Southern Piedmont Rad (R7) | GeoMet. | 05/81 | 0.5 mi. | E-W | 500 AG | Unpublished |
| VA18 | M/R-D | Culpeper Basin | GeoMet. | 05/81 | 0.75 mi. | E-W | 500 AG | VA P-41 |
| VA19 | M-A | Virginia Hot Dry Rock | Airmag | 02/80-03/80 | 1 mi. | N-S | 1000 AG | Los Alamos 78-356 |
Description of Table:
Survey No.: Internal USGS identification
number
Survey Type: M = magnetics; R = radiometrics; D = digital data; A =
digitized analog data
Survey Name: Internal project name (not always the name used in
publication title)
Flown By: Company or government agency who flew the original survey
Spacing and Dir.: Primary flight-line spacing and primary
flight-line direction
Altitude: Primary flight altitude in feet; B = barometric elevation, AG = above ground draped
over topography
Publication: Brief publication reference. USGS publications are
listed as: Open-File reports = OF xx-yyyy where xx is the publication year
and yyyy is the publication number, Geophysical Maps = GP-yyyy, Unpublished =
unpublished data (refers to all or part of the original project area).
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