Nazca Plate: Crustal Formation and Andean Convergence
Estimation of depth to magnetic source using maximum entropy power spectra, with application to the Peru-Chile Trench
Published:January 01, 1981
Richard J. Blakely, Slamak Hassanzadeh, 1981. "Estimation of depth to magnetic source using maximum entropy power spectra, with application to the Peru-Chile Trench", Nazca Plate: Crustal Formation and Andean Convergence, La Verne D. Kulm, Jack Dymond, E. Julius Dasch, Donald M. Hussong, Roxanne Roderick
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Estimations of the depth to magnetic sources using the power spectrum of magnetic anomalies generally require long magnetic profiles. The method developed here uses the maximum entropy power spectrum (MEPS) to calculate depth to source on short windows of magnetic data; resolution is thereby improved. The method operates by dividing a profile into overlapping windows, calculating a maximum entropy power spectrum for each window, linearizing the spectra, and calculating with least squares the various depth estimates. The assumptions of the method are that the source is two dimensional and that the intensity of magnetization includes random noise; knowledge of the...