Results 11 to 20 of about 27,504 (213)

Smart Speed Imaging in Digital Image Correlation: Application to Seismotectonic Scale Modeling

open access: yesFrontiers in Earth Science, 2019
Analog models of earthquakes and seismic cycles are characterized by strong variations in strain rate: from slow interseismic loading to fast coseismic release of elastic energy.
Michael Rudolf   +6 more
doaj   +1 more source

Seismotectonics of Mongolia and Baikal Rift Zone Controlled by Lithospheric Structures

open access: yesGeophysical Research Letters, 2022
Active tectonics are developing in Mongolia and the Baikal rift zone, where large crustal earthquakes (Mw ≥ 6.0) occur frequently. To clarify the mechanism of these earthquakes, we determine a high‐resolution 3‐D P‐wave velocity model of the crust and ...
Zhouchuan Huang, Dapeng Zhao
doaj   +1 more source

Modification of the lithospheric stress field by lateral variations in plate-mantle coupling [PDF]

open access: yes, 2009
The presence of deeply penetrating continental roots may locally increase the magnitude of basal shear tractions by up to a factor of 4 compared to a layered viscosity structure.
Naliboff, JB   +5 more
core   +1 more source

Evidence of Segmentation in the Iberia–Africa Plate Boundary: A Jurassic Heritage?

open access: yesGeosciences, 2019
The present structure of the Iberia−Africa plate boundary between the Gorringe Bank and the Algerian Basin is characterized by a highly segmented geometry and diffused seismicity. Filtered Bouguer gravity data show conspicuous highs coinciding with
Manel Fernàndez   +4 more
doaj   +1 more source

THE GLOBAL ENDODRAINAGE SYSTEM: SOME FLUID-PHYSICAL MECHANISMS OF GEODYNAMIC PROCESSES

open access: yesГеодинамика и тектонофизика, 2019
The article presents the main results of more than forty-year studies of the hydrogeodeformation field. We have establish some new properties of lithospheric massifs, which are clearly detectable during the periods of fast geodynamic activation (FGeDA ...
G. S. Vartanyan
doaj   +1 more source

Lithospheric failure on Venus [PDF]

open access: yesProceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003
Summary: We develop a predictive model which has the ability to explain a postulated style of episodic plate tectonics on Venus, through the periodic occurrence of lithospheric subduction events. Present-day incipient subduction zones are associated with the existence of arcuate trenches on the Venusian lithosphere.
Fowler, A, O'Brien, S
openaire   +3 more sources

ULF Pre-Seismic Geomagnetic Anomalous Signal Related to Mw8.1 Offshore Chiapas Earthquake, Mexico on 8 September 2017

open access: yesEntropy, 2019
In the last decade, the real time ground–based geomagnetic observations realized in correlation with the Vrancea seismicity in Romania, together with supplementary studies related to some earthquakes (Mw9.0 Tohoku, Japan on 11 March 2011 and Mw8.3 ...
Dragoș Armand Stănică   +1 more
doaj   +1 more source

Sensitivities of surface wave velocities to the medium parameters in a radially anisotropic spherical Earth and inversion strategies

open access: yesAnnals of Geophysics, 2015
Sensitivity kernels or partial derivatives of phase velocity (c) and group velocity (U) with respect to medium parameters are useful to interpret a given set of observed surface wave velocity data.
Sankar N. Bhattacharya
doaj   +1 more source

Analog and Numerical Experiments of Double Subduction Systems With Opposite Polarity in Adjacent Segments

open access: yesGeochemistry, Geophysics, Geosystems, 2020
In this work we study the dynamics of double subduction systems with opposite polarity in adjacent segments. A combined approach of numerical and analog experiments allows us to compare results and exploit the strengths of both methodologies.
Mireia Peral   +6 more
doaj   +1 more source

GEODYNAMICS OF URANIUM ORE FIELDS IN THE WESTERN PART OF THE INHUL MEGABLOK OF THE UKRAINIAN SHIELD

open access: yesГеохімія техногенезу, 2021
The Ingul megablock of the Ukrainian Shield contains a number of endogenous deposits of the sodium-uranium formation, which have been developed for more than 55-60 years.
V. Verkhovsev,   +5 more
doaj   +1 more source

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