Energy of tectonic process and vortex geological structures

Vikulin, A. V.; Tveritinova, T. Yu.

doi:10.1134/s1028334x07030026

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The three most active zones of the planet release over 98% of the Earth's seismic and volcanic energy and host nearly all the most hazardous earthquakes and volcanic eruptions. Correlations (4) and (5) published in [Vikulin, Tveritinova, 2007 yield from the analyses of velocities of movements estimated for almost all the most active boundaries of the tectonic plates of the planet. We believe that specific features of the energetics of the geodynamic (seismic + volcanic + tectonic) process should be determined from seismic and volcanic relationships (2a-f), supplemented by similar tectonic relation (5), in which p T is taken equal to the slope angle specified in the correlation for the seismic Pacific margin (2a).…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…Rheid properties of the geomedium can be explained by rotarywave mechanism, without involvement of mechanisms of dislocation creep, diffusion creep, structural superfluidity and other mechanism that are well-known in geodynamics [Vikulin, 2011, p. 384 -394]. This means that superplastic deformation of the geomedium, including the vortex geological structures [Lee, 1928;Xie Xin-sheng, 2004;Vikulin, Tveritinova, 2007], can be viewed as 'the flow of solid media' [Corey, 1954;Leonov, 2008].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Migration of seismic and volcanic activity as display of wave geodynamic process

Викулин¹,

Викулина²,

Акманова³

et al. 2012

Geodyn. Tectonophys.

View full text Add to dashboard Cite

Publications about the earthquake foci migration have been reviewed. An important result of such studies is establishment of wave nature of seismic activity migration that is manifested by two types of rotational waves; such waves are responsible for interaction between earthquakes foci and propagate with different velocities. Waves determining long-range interaction of earthquake foci are classified as Type 1; their limiting velocities range from 1 to 10 cm/s. Waves determining short-range interaction of foreshocks and aftershocks of individual earthquakes are classified as Type 2; their velocities range from 1 to 10 km/s. According to the classification described in [Bykov, 2005], these two types of migration waves correspond to slow and fast tectonic waves. The most complete data on earthquakes (for a period over 4.1 million of years) and volcanic eruptions (for 12 thousand years) of the planet are consolidated in a unified systematic format and analyzed by methods developed by the authors. For the Pacific margin, Alpine-Himalayan belt and the Mid-Atlantic Ridge, which are the three most active zones of the Earth, new patterns of spatial and temporal distribution of seismic and volcanic activity are revealed; they correspond to Type 1 of rotational waves. The wave nature of the migration of seismic and volcanic activity is confirmed. A new approach to solving problems of geodynamics is proposed with application of the data on migration of seismic and volcanic activity, which are consolidated in this study, in combination with data on velocities of movement of tectonic plate boundaries. This approach is based on the concept of integration of seismic, volcanic and tectonic processes that develop in the block geomedium and interact with each other through rotating waves with a symmetric stress tensor. The data obtained in this study give grounds to suggest that a geodynamic value, that is mechanically analogous to an impulse, remains constant in such interactions. It is thus shown that the process of wave migration of geodynamic activity should be described by models with strongly nonlinear equations of motion.Key words: migration, waves, rotation, seismicity, volcanism, geodynamics, conservation law, rheidity. MIGRATION OF SEISMIC AND VOLCANIC ACTIVITY AS DISPLAY OF WAVE GEODYNAMIC PROCESS

show abstract

Section: Discussion Of Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Migration of seismic and volcanic activity as display of wave geodynamic process

Викулин¹,

Викулина²,

Акманова³

et al. 2012

Geodyn. Tectonophys.

View full text Add to dashboard Cite

show abstract

“…Both this and that -in the total absence of band anomalies…. Yet, here too the subduction speed was accurately estimated [Vikulin, Tveritinova, 2004].…”

mentioning

confidence: 99%

Earth’s crust and physical fields of the oceans

Gordienko¹

2023

View full text Add to dashboard Cite

Some problems of the formation and development of oceanic regions with various variants of endogenic regimes (with the exception of island arcs, which, in the author’s opinion, belong to late Alpine geosynclines) are considered. Calculated geological events and anomalies of physical fields within them are determined by heat-mass-transfer schemes in the tectonosphere. The reliability and accuracy of the latter is related to the quantity and quality of information about the content of the regimes. In the oceans, such data is scarce. The article attempts to attract additional information about the formation of the Earth’s crust of a typical oceanic basin. It was presented in the form of oceanization (destruction and basification) of the continental crust with a slightly increased basicity. The process included the uplift and denudation of the upper block up to 10 km thick, the intrusion of mafic and ultrabasic rocks from the mantle in a concentration increasing with depth into the lower approximately 20—30 km of the crust. Seismic wave velocity and density in the crustal basement were almost equal to the properties of the warmed mantle rocks. The final stage of magmatism was presented in a large part of the region during the period of recent activation by the removal of partially molten matter from the shallow asthenosphere up to the surface. Similar models have also been constructed for other endogenous regimes. In all cases, significant scatter in the ages of the process stages and the order of formation of asthenolite sources rising from different depths of the upper mantle were unavoidable. The resulting thermal models were averaged effects for the considered variants of heat and mass transfer. The control of the reality of these constructions was carried out according to the correspondence of known events of geological history, allowing a quantitative description, and anomalies of physical fields. In this work, the second part is considered. The calculated velocity sections of the upper mantle regions, the heat flow distribution, and the values of mantle gravity anomalies were compared with the experimental data. In all cases, the agreement reached is satisfactory. The discrepancies can be explained by errors in observations and calculations

show abstract

Energy and moment of the Earth’s rotation elastic field

Vikulin

2008

Russian Geology and Geophysics

View full text Add to dashboard Cite

The problem of an elastic stress field in a rotating medium is formulated and solved analytically within the limits of the classical theory of elasticity with a symmetrical stress tensor. This is a rotation elastic field of action at a distance. There are two specific types of elastic waves with a moment in rotating media: solitons and excitons, or rotation waves. The soliton solutions to the wave equation represent waves of global earthquake migration (slow tectonic waves) which are no faster than ∼1 cm/s, i.e., approach the migration velocity of large and great earthquakes (M > 7.5). The exciton solutions correspond to waves of local migration of foreshocks and aftershocks in earthquake sources (fast tectonic waves) and have their maximum velocity comparable to faulting rate and/or to S-wave velocities.

show abstract

Energy of tectonic process and vortex geological structures

Cited by 4 publications

References 0 publications

Migration of seismic and volcanic activity as display of wave geodynamic process

Migration of seismic and volcanic activity as display of wave geodynamic process

Earth’s crust and physical fields of the oceans

Energy and moment of the Earth’s rotation elastic field

Contact Info

Product

Resources

About