Summary

The lack of adequate, independent aircraft attitude (heading, elevation, bank) information has significantly hampered the use of the airborne magnetic vector data for geophysical prospecting. With the advent of independent aircraft attitude information from inertial sensors associated with the FALCON Airborne Gravity Gradiometer (AGG) system it is now possible to process and interpret airborne magnetic vector data. The magnetic vector data must initially be projected from an aircraft reference frame to a world reference system. The data must also be compensated for the magnetic signature of the survey aircraft. We have found that the computation of a residual magnetic vector yields superior enhancement of local magnetic vector variations. The residual magnetic vector data are proving to be a valuable addition to standard 1VD TMI data, when interpreting regions of highly magnetized banded iron-formations.

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