Physics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..627p&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 7, p. 627-630.
Physics
48
Earth Crust, Geomagnetism, Magnetic Permeability, Magnetization, Anisotropy, Fractals, Mathematical Models, Power Spectra
Scientific paper
Many geophysical variables exhibit fractal or at least scaling behavior, notably in having power spectra proportional to some power of frequency. Power spectra of magnetic susceptibility logs from boreholes are proportional to spatial frequency f exp-2 for wavelengths from 0.1 to 100 m. If the power spectrum of the susceptibility or magnetization of the crust is known then the power spectrum of the magnetic field at the surface can be calculated. We show that if magnetization is scaling with a single scaling exponent then the observed f exp -3 power spectra of aeromagnetic data implies a 3D susceptibility distribution for length scales of 1 to 1000 km. One way to reconcile the two results is to introduce anisotropy in the form of an f exp -4 variation for the horizontal direction and f exp -2 for the vertical.
Pilkington Mark
Todoeschuck John P.
No associations
LandOfFree
Fractal magnetization of continental crust does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fractal magnetization of continental crust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fractal magnetization of continental crust will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1371216