New frontiers in magnetic field interpretation and modeling: Examples from the World Digital Magnetic Anomaly Map
Abstract
The World Digital Magnetic Anomaly Map is a joint effort on the part of the marine, airborne, and satellite magnetic communities to stitch together a unified map of the earth's lithospheric magnetic field. Several preliminary versions of this map will be exhibited during AGU, and this presentation will highlight interpretations of data that have gone into making this map. Examples to be discussed include 1) the Chicxulub impact structure, 2) geodynamical interpretations of dike swarms, 3) structural and tectonic interpretations of aeromagnetic maps over forearc basins with Cenozoic to Recent faulting, 4) heat flux beneath the Antarctic ice sheet, 5) the role of magnetic interpretations in identifying diamond-bearing kimberlites, and 6) structural inferences drawn from magnetic surveys over the West Siberian basin, and the Urengoy gas field.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2006
- Bibcode:
- 2006AGUFMGP42A..01P
- Keywords:
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- 1517 Magnetic anomalies: modeling and interpretation;
- 1541 Satellite magnetics: main field;
- crustal field;
- external field;
- 1545 Spatial variations: all harmonics and anomalies;
- 1550 Spatial variations attributed to seafloor spreading (3005)