Results 31 to 40 of about 2,042,519 (287)

Experimental observation of water saturation effects on shear wave splitting in synthetic rock with fractures aligned at oblique angles [PDF]

open access: yes, 2015
Fractured rocks are known to exhibit seismic anisotropy and shear wave splitting (SWS). SWS is commonly used for fractured rock characterization and has been shown to be sensitive to fluid type. The presence of partial liquid/gas saturation is also known
Sothcott, J.   +7 more
core   +1 more source

Stress-dependent shear wave splitting and permeability in fractured porous rock

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
It is well known that shear wave propagates slower across than parallel to a fracture, and as a result, a travelling shear wave splits into two directions when it encounters a fracture.
Daisuke Katsuki   +2 more
doaj   +1 more source

Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]

open access: yes, 2013
Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
core   +1 more source

Shear-wave splitting in the mantle of the pacific [PDF]

open access: yesGeophysical Journal International, 1994
SUMMARY The bulk of previously known data on seismic anisotropy in the suboceanic mantle was obtained from observations of azimuthal variations of the surface-wave and P, velocities. Our study of azimuthal anisotropy in the mantle of the Pacific is based on observations of shear-wave splitting. The idea of our method of measurement (Vinnik & Farra 1992)
Véronique Farra, Lev Vinnik
openaire   +1 more source

Observations of stress relaxation before earthquakes [PDF]

open access: yes, 2004
Theory and observations suggest that seismic shear wave splitting, caused by fluid-saturated stress-aligned microcracks, directly monitors low-level deformation before fracturing, faulting and earthquakes occur.
Gao, Yuan, Crampin, Stuart
core   +1 more source

Seismic anisotropy beneath the Chinese Mainland: Constraints from shear wave splitting analyses

open access: yesEarthquake Research Advances, 2021
We use earthquakes recorded by the China National Seismic Network from 2015 to 2019 and measure shear wave splitting parameters of SKS to study the anisotropic characteristics beneath the mainland of China.
Lingxia Gao, Daoyuan Sun
doaj   +1 more source

Shear wave splitting data set - Los Humeros Geothermal Field

open access: yes, 2021
Anisotropic data set, used in the analysis of the article "Analysis of shear wave splitting parameters in Los Humeros Geothermal Field, Puebla ...
Chacon Hernandez, F (via Mendeley Data)   +1 more
core   +1 more source

Symmetry-Driven Unconventional Magnetoelectric Coupling in Perovskite Altermagnets: From Bulk to the Two-Dimensional Limit. [PDF]

open access: yesAdv Sci (Weinh)
The symmetry‐driven coexistence of altermagnetism and (anti)ferroelectricity in perovskites shows a strong dimensional dependence. Upon reducing the system from bulk to the two‐dimensional limit, only C‐type antiferromagnetic order retains ferroelectrically switchable altermagnetism, whereas A‐ and G‐type orders become conventional antiferromagnets ...
Cui Z   +6 more
europepmc   +2 more sources

Upper crustal anisotropy from local shear-wave splitting and crust-mantle coupling of Yunnan, SE margin of Tibetan Plateau

open access: yesGeodesy and Geodynamics, 2018
The upper crustal anisotropy of Yunnan area, SE margin of Tibetan Plateau, is investigated by measuring the shear wave splitting of local earthquakes.
Bo Zhang   +3 more
doaj   +1 more source

Deformation in Rutford Ice Stream, West Antarctica: measuring shear-wave anisotropy from icequakes [PDF]

open access: yes, 2013
Ice streams provide major drainage pathways for the Antarctic ice sheet. The stress distribution and style of flow in such ice streams produce elastic and rheological anisotropy, which informs ice-flow modelling as to how ice masses respond to external
Baird, A.F.   +15 more
core   +1 more source

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