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Magnetic data


Magnetic anomaly measurements indicate variations in the intensity of Earth's magnetic field. These variations are generated by differences in magnetic minerals such as magnetite and hematite in Earth's crust, and can be used to indirectly infer differences in rock composition. Please follow links on this page to download image (GeoTiff or kmz), grid (gxf) or flight line (csv) data Detailed information regarding data collection and processing can be found in the technical report. Initial interpretation of this dataset is provided by: Shah, A.K., Horton, J.W., Jr., Burton, W.C., Spears, D.B. and Gilmer, A.K. 2015, Subsurface geologic features of the 2011 central Virginia earthquakes revealed by airborne geophysics, in Horton, [...]

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