Tidal modulation of plate motions

Zaccagnino, Davide; Vespe, F.; Doglioni, Carlo

doi:10.1016/j.earscirev.2020.103179

Cited by 29 publications

(26 citation statements)

References 51 publications

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“…In the present work, we accept the reasoning of Zaccagnino et al. (2020) that the probable value of viscosity in the LVZ is between 10 13 and 10 15 Pa∙s. Using Equation (12), we assume that =

η

10 14 Pa∙s, the area of A is ≈5 × 10 7 km 2 (which corresponds to the area of a significant oceanic tectonic plate) and ∆ h = 100 km.…”

Section: Discussionsupporting

confidence: 91%

“…Important results have also been obtained to explain the motion of the plates (Carcaterra & Doglioni, 2018;Doglioni et al, 2006Doglioni et al, , 2011Zaccagnino et al, 2020). The purpose of our study is twofold.…”

Section: Introductionmentioning

confidence: 90%

“…The age and early development of plate tectonics is the subject of numerous recent studies based on geological, geochemical and seismological observations (Brown et al., 2020; Cawood et al., 2006; Condie, 2011; Guo & Korenaga, 2020; Hamilton, 2011; Harrison, 2009; Maruyama et al., 2018; Douchet et al, 2020; Schiller et al., 2020; Siebert, 2020; Stern, 2018; Wan et al., 2020). Important results have also been obtained to explain the motion of the plates (Carcaterra & Doglioni, 2018; Doglioni et al., 2006, 2011; Zaccagnino et al., 2020). The purpose of our study is twofold.…”

Section: Introductionmentioning

confidence: 99%

“…(2006), Carcaterra and Doglioni (2018) and Zaccagnino et al. (2020), changes in the Earth's axial rotation can affect the movement of tectonic plates, and the horizontal component of the body tide is able to shift the lithospheric plates at a rate of 10 cm/year (Doglioni et al., 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The physical basis of recent plate tectonics is characterized by interaction between plates by viscous coupling to a convecting mantle. According to Doglioni et al (2006), Carcaterra andDoglioni (2018) and Zaccagnino et al (2020), changes in the Earth's axial rotation can affect the movement of tectonic plates, and the horizontal component of the body tide is able to shift the lithospheric plates at a rate of 10 cm/year (Doglioni et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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About the energy and age of the plate tectonics

Varga

Fodor

2021

Terra Nova

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Recently, a number of research findings have come to light about the age of plate tectonics, and energies are needed to operate it. The aim of present study is to investigate whether the energy of plate tectonics process was different during the Phanerozoic (Pz) and in earlier eons, and if there is such a discrepancy, whether it can be justified by changes in the processes that able to move the plates. The study will track temporal changes in important components of plate tectonics such as length of mid‐ocean ridges, subduction zones and relative oceanic crust coverage during Phanerozoic. Next, it will be examined how the knowledge gained in this way can be reconciled with the results of studies of previous eons. It was found that the temporal variation in kinetic energy of axial rotation due to changes in length of day (LOD) can be assumed as a determining energy which acts on the tectonic plates as in the Phanerozoic as earlier in Archean (Arch) and Proterozoic (Ptz).

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“…In the present work, we accept the reasoning of Zaccagnino et al. (2020) that the probable value of viscosity in the LVZ is between 10 13 and 10 15 Pa∙s. Using Equation (12), we assume that =

η

10 14 Pa∙s, the area of A is ≈5 × 10 7 km 2 (which corresponds to the area of a significant oceanic tectonic plate) and ∆ h = 100 km.…”

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

About the energy and age of the plate tectonics

Varga

Fodor

2021

Terra Nova

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Displacements Before and After Great Earthquakes: Geodetic and Seismic Viewpoints

Liu,

Kossobokov

2021

Pure Appl. Geophys.

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Earth’s gradients as the engine of plate tectonics and earthquakes

Zaccagnino

Doglioni

2022

Riv. Nuovo Cim.

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The processes occurring on the Earth are controlled by several gradients. The surface of the Planet is featured by complex geological patterns produced by both endogenous and exogenous phenomena. The lack of direct investigations still makes Earth interior poorly understood and prevents complete clarification of the mechanisms ruling geodynamics and tectonics. Nowadays, slab-pull is considered the force with the greatest impact on plate motions, but also ridge-push, trench suction and physico-chemical heterogeneities are thought to play an important role. However, several counterarguments suggest that these mechanisms are insufficient to explain plate tectonics. While large part of the scientific community agreed that either bottom-up or top-down driven mantle convection is the cause of lithospheric displacements, geodetic observations and geodynamic models also support an astronomical contribution to plate motions. Moreover, several evidences indicate that tectonic plates follow a mainstream and how the lithosphere has a roughly westerly drift with respect to the asthenospheric mantle. An even more wide-open debate rises for the occurrence of earthquakes, which should be framed within the different tectonic setting, which affects the spatial and temporal properties of seismicity. In extensional regions, the dominant source of energy is given by gravitational potential, whereas in strike-slip faults and thrusts, earthquakes mainly dissipate elastic potential energy indeed. In the present article, a review is given of the most significant results of the last years in the field of geodynamics and earthquake geology following the common thread of gradients, which ultimately shape our planet.

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Tidal modulation of plate motions

Cited by 29 publications

References 51 publications

About the energy and age of the plate tectonics

About the energy and age of the plate tectonics

Displacements Before and After Great Earthquakes: Geodetic and Seismic Viewpoints

Earth’s gradients as the engine of plate tectonics and earthquakes

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