Results 1 to 10 of about 151,377 (290)

Anisotropy Variations in the Alaska Subduction Zone Based on Shear‐Wave Splitting From Intraslab Earthquakes

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Shear‐wave splitting observations can provide insight into mantle flow, due to the link between the deformation of mantle rocks and their direction‐dependent seismic wave velocities.
Cole Richards   +3 more
doaj   +2 more sources

Automated shear-wave splitting analysis for single- and multi- layer anisotropic media

open access: yesSeismica, 2023
Shear-wave velocity anisotropy is present throughout the earth. The strength and orientation of anisotropy can be observed by shear-wave splitting (birefringence) accumulated between earthquake sources and receivers. Seismic deployments are getting ever
Thomas Samuel Hudson   +2 more
doaj   +2 more sources

Diurnal expansion and contraction of englacial fracture networks revealed by seismic shear wave splitting

open access: yesCommunications Earth & Environment, 2021
Daily variations in seismic S-wave anisotropy reveal the dynamic response of englacial fractures to changing meltwater supply, according to shear wave splitting measurements from a seismometer network on the Rhonegletscher, Switzerland.
Wojciech Gajek   +4 more
doaj   +2 more sources

New shear wave splitting measurements using broadband seismic data recorded by the BX seismological network in Botswana [PDF]

open access: yesData in Brief, 2023
New measurements shear-wave splitting (SWS) were determined using a teleseismic dataset from 21 broadband seismic stations belonging to the GSN-BX network in Botswana archived at IRIS-DMC.
Moikwathai Moidaki
doaj   +2 more sources

Small Shear Wave Splitting Delays Suggest Weak Anisotropy in Cratonic Mantle Lithosphere

open access: yesGeophysical Research Letters, 2021
We use splitting in core‐refracted teleseismic shear waves (SKS, PKS, and similar) to investigate anisotropic properties of the upper mantle beneath the Superior craton in eastern North America and the Yilgarn craton in Western Australia.
Xiaoran Chen, Vadim Levin, Huaiyu Yuan
doaj   +2 more sources

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   +2 more sources

Robust Phase Association and Simultaneous Arrival Picking for Downhole Microseismic Data Using Constrained Dynamic Time Warping [PDF]

open access: yesSensors
Accurate phase association and arrival time picking are pivotal for reliable microseismic event location and source characterization. However, the complexity of downhole microseismic wavefields, arising from heterogeneous subsurface structures, variable ...
Tuo Wang   +5 more
doaj   +2 more sources

Mantle flow through a tear in the Nazca slab inferred from shear wave splitting

open access: yesGeophysical Research Letters, 2017
A tear in the subducting Nazca slab is located between the end of the Pampean flat slab and normally subducting oceanic lithosphere. Tomographic studies suggest mantle material flows through this opening.
Colton Lynner   +4 more
doaj   +2 more sources

The formation of Laurentia : Evidence from shear wave splitting [PDF]

open access: yes, 2017
The authors would like to thank A. Walker for invaluable help understanding the MSAT forward modelling code, as well as A. Boyce, L. Petrescu, and C.
Bastow, Ian   +4 more
core   +3 more sources

Terrane‐controlled crustal shear wave splitting in Taiwan [PDF]

open access: yes, 2016
Taiwan is the result of arc‐continent collision associated with the convergence of the Philippine Sea plate with the eastern Eurasian plate continental margin.
Christensen, Nikolas I.   +3 more
core   +3 more sources

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