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FITTING OBSERVED PROFILES TO A MAGNETIZED DYKE OR FAULT‐STEP MODEL *
Author(s) -
POWELL D. W.
Publication year - 1967
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1967.tb01784.x
Subject(s) - geology , symmetry (geometry) , fault (geology) , magnetic anomaly , geometry , anomaly (physics) , function (biology) , seismology , geophysics , physics , mathematics , condensed matter physics , evolutionary biology , biology
The symmetry shown, by the function describing the magnetic anomaly due to a dyke or vertical fault step leads to a method by which an observed profile may be adjusted to conform with that symmetry. By making these adjustments a minimum the ideal dyke or fault profile closest to the observations is constructed. In three of four possible situations this is interpreted by simple geometry. Parallelpiped models may be transformed into two dykes for symmetry analysis. Depth limited models are not so amenable, even in special cases.