Results 21 to 30 of about 37,476 (265)

Anomalous Geomagnetic Signal Emphasized before the Mw8.2 Coastal Alaska Earthquake, Occurred on 29 July 2021

open access: yesEntropy, 2022
A very strong earthquake of magnitude Mw8.2 struck the coastal zone of Alaska (USA), on 29 July 2021. This earthquake was felt around the Gulf of Alaska, on a wide offshore area belonging to USA and Canada.
Dragoș Armand Stănică
doaj   +1 more source

LitMod2D_2.0: An Improved Integrated Geophysical‐Petrological Modeling Tool for the Physical Interpretation of Upper Mantle Anomalies

open access: yesGeochemistry, Geophysics, Geosystems, 2020
LitMod2D integrates geophysical and petrological data sets to produce the thermal, density, and seismic velocity structure of the lithosphere and upper mantle.
Ajay Kumar   +5 more
doaj   +1 more source

UPPER MANTLE CONVECTION RELATED TO SUBDUCTION ZONE AND APPLICATION OF THE MODEL TO INVESTIGATE THE CRETACEOUS-CENOZOIC GEODYNAMICS OF CENTRAL EAST ASIA AND THE ARCTIC

open access: yesГеодинамика и тектонофизика, 2021
A geodynamic model of upper mantle convection related to the Pacific subduction zone is mathematically substantiated and applied to investigate the Cretaceous-Cenozoic evolution of Central East Asia (CEA) and the Arctic. We present a solution for the two-
L. I. Lobkovsky   +2 more
doaj   +1 more source

Buckling of the oceanic lithosphere from geophysical data and experiments [PDF]

open access: yes, 1992
Two major hypothesis have been advanced for the formation of the long wavelength (100-300) km undulations of oceanic basement and overlying sediments developed in the central Indian Ocean: whole layer folding (buckling) and local thickening (inverse ...
Bull, Jonathan M.   +2 more
core   +1 more source

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

The lithosphere-asthenosphere boundary in the North-West Atlantic region [PDF]

open access: yes, 2005
A detailed knowledge of the thickness of the lithosphere in the north Atlantic is an important parameter for understanding plate tectonics in that region.
Schweitzer, J.   +16 more
core   +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

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