Results 11 to 20 of about 3,183 (164)

Ultrasonic and seismic constraints on crystallographic preferred orientations of the Priestley Glacier shear margin, Antarctica [PDF]

The Cryosphere, 2022
Crystallographic preferred orientations (CPOs) are particularly important in controlling the mechanical properties of glacial shear margins. Logistical and safety considerations often make direct sampling of shear margins difficult, and geophysical ...
F. Lutz, D. J. Prior, H. Still, M. H. Bowman, B. Boucinhas, L. Craw, S. Fan, D. Kim, R. Mulvaney, R. E. Thomas, C. L. Hulbe   +10 more
doaj   +1 more source

Azimuthal anisotropy of direct photons [PDF]

Physical Review D, 2008
Equations (23), (26) and the figures are corrected, references added. The version to appear in Phys.
Kopeliovich, B. Z., Pirner, H. J., Rezaeian, A. H., Schmidt, Ivan   +3 more
openaire   +6 more sources

Upper Mantle Anisotropic Shear Velocity Structure at the Equatorial Mid‐Atlantic Ridge Constrained by Rayleigh Wave Group Velocity Analysis From the PI‐LAB Experiment

Geochemistry, Geophysics, Geosystems, 2021
The evolution of ocean lithosphere and asthenosphere are fundamental to plate tectonics, yet high resolution imaging is rare. We present shear wave velocity and azimuthal anisotropy models for the upper mantle from Rayleigh wave group velocities from ...
Utpal Saikia, Catherine Rychert, Nicholas Harmon, J. M. Kendall   +3 more
doaj   +1 more source

Azimuthal anisotropy measurements by STAR [PDF]

Nuclear Physics A, 2014
The recent study of centrality and transverse momentum ($p_{T}$) dependence of inclusive charged hardron elliptic anisotropy ($v_{2}$) at midrapidity ($|η|<1.0$) in Au+Au collision at $\sqrt{s_{NN}} =$ 7.7, 11.5, 19.6, 27, and 39 GeV in STAR Beam Energy Scan program is presented.
openaire   +2 more sources

Deformation of the Crust and Upper Mantle beneath the North China Craton and Its Adjacent Areas Constrained by Rayleigh Wave Phase Velocity and Azimuthal Anisotropy

Remote Sensing, 2021
The North China Craton (NCC) has experienced strong tectonic deformation and lithospheric thinning since the Cenozoic. To better constrain the geodynamic processes and mechanisms of the lithospheric deformation, we used a linear damped least squares ...
Xiaoming Xu, Dazhou Zhang, Xiang Huang, Xiaoman Cao   +3 more
doaj   +1 more source

Azimuthal anisotropy at Valhall: The Helmholtz equation approach [PDF]

Geophysical Research Letters, 2013
AbstractWe used 6 h of continuous vertical records from 2320 sensors of the Valhall Life of Fields Seismic network to compute 2,690,040 cross‐correlation functions between the full set of sensor pair combinations. We applied the “Helmholtz tomography” approach combined with the ambient noise correlation method to track the wave front across the network
Mordret, Aurélien, Shapiro, N.M., Singh, Satish C., Roux, Philippe, Montagner, Jean-Paul, Barkved, O.I.   +5 more
openaire   +2 more sources

Azimuthal amplitude difference inversion constrained by azimuth velocity anisotropy

Geophysical Journal International, 2022
SUMMARYAmplitude variation with incident angle and azimuth (AVAZ) inversion is usually used for estimating subsurface medium properties from azimuthal stacked seismic data for fracture prediction. And weak anisotropy parameters play an important role in the fracture prediction of shale reservoirs.
Lixiang Ji, Zhaoyun Zong, Yaming Yang
openaire   +1 more source

Panoramic azimuthal Schlumberger Vertical Electrical Sounding for fracture orientation and anisotropy quantification

Heliyon, 2018
Vertical electrical sounding (VES) data acquired with the Schlumberger configuration is popularly used to image the electrical resistivity variation with depth at a single azimuth. Apart from the random subjective choice of the single azimuthal direction
Jide Nosakare Ogunbo, Emmanuel Abiodun Mamukuyomi, Wahab Stephens Adepoju, Harrison Adebowale, Olamide Akinro, Chukwuebuka Richard Ukaegbu   +5 more
doaj   +1 more source

Azimuthal Anisotropy in High-Energy Nuclear Collision: An Approach Based on Complex Network Analysis

Advances in High Energy Physics, 2018
Recently, a complex network based method of visibility graph has been applied to confirm the scale-freeness and presence of fractal properties in the process of multiplicity fluctuation.
Susmita Bhaduri, Dipak Ghosh
doaj   +1 more source

In Situ Characterization of the Lithosphere‐Asthenosphere System beneath NW Pacific Ocean Via Broadband Dispersion Survey With Two OBS Arrays

Geochemistry, Geophysics, Geosystems, 2018
We conducted broadband dispersion survey by deploying two arrays of broadband ocean bottom seismometers in the northwestern Pacific Ocean at seafloor ages of 130 and 140 Ma.
Akiko Takeo, Hitoshi Kawakatsu, Takehi Isse, Kiwamu Nishida, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Hisashi Utada   +7 more
doaj   +1 more source