Fractal behavior of electrical properties in oceanic and continental crust

Author(s): Vedanti, Nimisha; Dimri, V. P.
Author Affiliation(s): Primary:
National Geophysical Research Institute, Hyderabad, India
Volume Title: Indian Journal of Marine Sciences
Source: Indian Journal of Marine Sciences, 32(4), p.273-278. Publisher: Council of Scientific & Industrial Research, New Delhi, India. ISSN: 0379-5136 CODEN: IJMNBF
Note: In English. 19 refs.; illus., incl. sects., 2 tables, sketch map
Summary: The fractal behavior of electrical properties of oceanic and upper continental crust was examined for different lithological units encountered in boreholes of Ocean Drilling Program (ODP) and German Continental Deep Drilling Program (KTB), using wavelet transform and Welch averaged periodogram methods. Results obtained from both the sites reveal that the electrical properties in oceanic as well as upper part of continental crust are fractal in nature. The scaling exponent obtained by periodogram analysis has shown variation with lithology and for continental crust it decreases with an increase in depth, which reveals that the electrical crust is more homogeneous at deeper levels than at shallow levels.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Archie's law; Bavaria Germany; Boreholes; Central Europe; Continental crust; Cores; Crust; Deep drilling; Drilling; Electrical conductivity; Electrical properties; Europe; Fractals; Germany; Gneisses; Impedance; Indian Ocean; KTB; Metabasite; Metaigneous rocks; Metamorphic rocks; ODP Site 735; Ocean Drilling Program; Oceanic crust; Periodicity; Resistivity; Scale factor; Spatial variations; Upper Palatinate; Wavelets
Coordinates: S324327 S324318 E0571618 E0571557
N494800 N494800 E0120900 E0120900
Record ID: 2004054054
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