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SE | Volume 10, issue 1
Solid Earth, 10, 275–292, 2019
https://doi.org/10.5194/se-10-275-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Solid Earth, 10, 275–292, 2019
https://doi.org/10.5194/se-10-275-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 05 Feb 2019

Review article | 05 Feb 2019

Power spectra of random heterogeneities in the solid earth

Haruo Sato
Related subject area  
Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, geoelectrics, and electromagnetics | Discipline: Seismology
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Cited articles  
Aki, K.: Scattering of P waves under the Montana LASA, J. Geophys. Res., 78, 1334–1346, https://doi.org/10.1029/JB078i008p01334, 1973. a
Aki, K. and Chouet, B.: Origin of coda waves: Source, attenuation and scattering effects, J. Geophys. Res., 80, 3322–3342, 1975. a, b
Allègre, C. J. and Turcotte, D. L.: Implications of a two-component marble-cake mantle, Nature, 323, 123–127, 1986. a
Badi, G., Pezzo, E. D., Ibanez, J. M., Bianco, F., Sabbione, N., and Araujo, M.: Depth dependent seismic scattering attenuation in the Nuevo Cuyo region (southern central Andes), Geophys. Res. Lett., 36, L24307, https://doi.org/10.1029/2009GL041081, 2009. a
Bentham, H., Rost, S., and Thorne, M.: Fine-scale structure of the mid-mantle characterised by global stacks of PP precursors, Earth Planet. Sci. Lett., 472, 164–173, 2017. a
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Recent seismological observations clarified that the velocity structure of the crust and upper mantle is randomly heterogeneous. I compile reported power spectral density functions of random velocity fluctuations based on various types of measurements. Their spectral envelope is approximated by the third power of wavenumber. It is interesting to study what kinds of geophysical processes created such a power-law spectral envelope at different scales and in different geological environments.
Recent seismological observations clarified that the velocity structure of the crust and upper...
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