Magnification of mantle resonance as a cause of tectonics

Abstract

Variance spectral analysis of superconducting gravimeter (SG) decadal data (noise inclusive) is presented suggesting that the Earth tectonogenesis is based on magnification of the mass (mainly the mantle) mechanical resonance, in addition to or instead of previously hypothesized causes. Here the use of raw (gapped and unaltered) data is regarded as the criterion for a physical result validity, so data were not altered in any way. Then analogously to the atmospheric tidal forcing of global high frequency free oscillation, I propose that the Moon synodically recurring pull could likewise drive the long-periodic (12 to 120 minutes) oscillation of the Earth. To demonstrate this, I show that the daily magnitudes of mass (gravity) oscillation, as a relative measure of the non-stationary Earth kinetic energy, get synodically periodic while correlating up to 0.97 with seismic energies on the day of shallow and 3 days before deep earthquakes. The forced oscillator equations for the mantle usual viscosity and the Earth springtide and grave mode periods successfully model an identical 3 days phase. Finally, whereas reports on gravest earthquakes (of around M9.5) put the maximum coseismic displacement at around 10 m, the same equations predict the maximum displacement as 9.8 m, too. Hence, the same mechanism that causes bridges to collapse under the soldiers step marching could be making the lithosphere fail under the springtide induced magnification of mantle resonance resulting in strong earthquakes of unspecified type. If this assertion is correct, then many if not most large earthquakes could be spatially and temporally predictable.Comment: Published version, 14 pages, 6 figure

Astrophysical Cause of Tectonics

“…Indeed, equations of a forced mechanical oscillator with viscous damping (Den Hartog, 1985), as the limiting case, result for Earth's usual parameters and mantle viscosity in 3days mantle response-phase and the well-known maximum co-seismic displacement of around 10 m; remarkably, 3-day phase is also obtained as a precursory cross-correlation of decadal deep (conventionally: below 400 km) M6.3+ earthquakes with spectra of (the spectra of) Earth mass accelerations from corresponding decadal 1Hz records by superconducting gravimeters that normally serve as broadband seismometers too; the phase is shorter in the case of shallow seisms, and takes up to several hours to initiate (Omerbashich, 2007). This justifies the concept of the Earth as an oscillation magnifier.…”

Detection and mapping of Earth body resonances with cGPS

“…Therefore, to examine the periodicity in cGPS data, I use the Gauss-Vaníček method of spectral analysis (GVSA) by Vaníček (1969Vaníček ( , 1971, as a technique unaffected by gaps in data. The GVSA belongs to the least-squares class of spectral analysis techniques, has many advantages over the Fourier class of spectral analysis techniques (Press et al, 2007), has proven itself in analyzing long and gapped records (Omerbashich, 2006(Omerbashich, , 2007a, and provides total accuracy in extracting periods from sets of natural data -down to the prescribed accuracy of analyzed data themselves (Omerbashich, 2007b;2020a;2020b).…”

Transformative resonant moderation of geomagnetic polarity and strata

“…The GVSA belongs to the least-squares class of spectral analysis techniques, has many advantages over the Fourier class of spectral analysis techniques in analyzing sparse natural data of long spans (Press et al, 2007), and has proven itself by providing absolute extraction accuracy in analyzing even extremely gapped paleodata (extinction) records (Omerbashich, 2006(Omerbashich, , 2007b. The GVSA provides total (absolute) accuracy in extracting periods from natural data sets -to the prescribed accuracy of analyzed data themselves -of twice the sampling step or data accuracy (Omerbashich, 2007a;2020a;2020b).…”