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Source of the Bicester magnetic anomaly
Author(s) -
Kearey P.,
Rabae A. M.
Publication year - 1993
Publication title -
geological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 54
eISSN - 1099-1034
pISSN - 0072-1050
DOI - 10.1002/gj.3350280209
Subject(s) - magnetic anomaly , anomaly (physics) , geology , reflection (computer programming) , remanence , geophysics , magnetic survey , azimuth , borehole , seismology , magnetization , magnetic field , physics , paleontology , optics , condensed matter physics , quantum mechanics , computer science , programming language
The Bicester magnetic anomaly is one of several high wavenumber features superimposed on the magnetic anomaly associated with the London Platform. Seismic reflection data suggest that the source of the Bicester anomaly is a body of basaltic rocks of Carboniferous age that can be traced from the Steeple Aston borehole. Three‐dimensional interpretational techniques indicate that the magnetic source has a total magnetization vector dipping at 60°, azimuth 170°, with an intensity of 1.39 A m −1 and this has been used to derive a three‐dimensional model of the source. The nature of the magnetic remanence contributing to this vector is discussed. A detailed two‐dimensional magnetic model has been constructed using the seismic control.