Results 81 to 90 of about 27,306 (237)

Seismic anisotropy in western Tibet

Geophysical Research Letters, 2005
Teleseismic SKS data collected by a temporary broadband array across western Tibet are analysed to constrain shear‐wave splitting parameters. Small delay anisotropy is detected, with a rotation of the fast axis azimuth from 40°E in the Tarim basin west of Yecheng to more easterly values between Hotien and Shiquanhe.
Georges Herquel, Paul Tapponnier
openaire   +1 more source

Frozen Soil Hydrological Processes and Their Effects: A Review and Synthesis

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Frozen soils, including seasonally frozen ground and permafrost, are rapidly changing under a warming climate, with cascading effects on water, energy, and carbon cycles. We synthesize recent advances in the physics, observation, and modeling of frozen‐soil hydrology, emphasizing freeze–thaw dynamics, infiltration regimes and preferential flow,
Ying Zhao, Ce Zheng, Alexander Gelfan, Kunio Watanabe, Haojie Liu, Stephanie Wright, Xiaolong Wu, William Quinton, Yi Wang, Shuhua Yi, Yongyong Zhang, Yujie Shi, Wentao Jiao   +12 more
wiley   +1 more source

Anisotropy of permeability, P-wave velocity and electrical resistivity of Upper Cretaceous carbonate samples from Tushka Area, Western Desert, Egypt

Egyptian Journal of Petroleum, 2019
Petrophysical properties (such as porosity, permeability, grain density, bulk density, electrical resistivity, and P-wave velocity), as well as the anisotropy of the permeability, seismic velocity (P-wave velocity) and electrical resistivity were ...
Mohamed A. Kassab, Andreas Weller
doaj   +1 more source

Complex Patterns of Past and Ongoing Crustal Deformations in Southern California Revealed by Seismic Azimuthal Anisotropy

Geophysical Research Letters, 2022
We present a high‐resolution P‐wave azimuthally anisotropic velocity model for the upper and middle crust beneath southern California by a novel adjoint‐state traveltime tomography technique.
Shucheng Wu, Chengxin Jiang, Vera Schulte‐Pelkum, Ping Tong   +3 more
doaj   +1 more source

Physical Properties of Iron in the Inner Core

, 2002
The Earth's inner core plays a vital role in the dynamics of our planet and is itself strongly exposed to dynamic processes as evidenced by a complex pattern of elastic structure.
Ahrens, Alfè, Alfè, Alfè, Alfè, Alfè, Alfè, Anderson, Anderson, Andrault, Asada, Aurnou, Barron, Bergman, Bergman, Bergman, Birch, Birch, Boehler, Boehler, Boehler, Braginsky, Brown, Brown, Brown, Brown, Brown, Brown, Bréger, Buffett, Buffett, Buffett, Buffett, Buffett, Buffett, Buffett, Bullen, Bullen, Clement, Cohen, Cohen, Cohen, Creager, Creager, Creager, Creager, Davies, de Wijs, Deuss, Dubrovinsky, Dubrovinsky, Duffy, Duffy, Dziewonski, Dziewonski, Eckerlin, Fiquet, Funamori, Glatzmaier, Glatzmaier, Gülseren, Hemley, Hill, Hohenberg, Hollerbach, Huang, Ishii, Ishii, Ito, Jackson, Jeanloz, Jeanloz, Jeanloz, Jeanloz, Jeanloz, Jephcoat, Jephcoat, Karato, Karato, Karato, Kohn, Kuang, Körling, Laio, Laske, Lehmann, Li, Lubbers, Lundqvist, Manghnani, Mao, Mao, Mao, Masters, Masters, Matsui, Matthies, Maurer, McMahon, Merkel, Merrill, Morelli, Moroni, Nguyen, Nielsen, Niu, Okal, Okuchi, Olijnyk, Olijnyk, Parrinello, Perdew, Pickett, Poirier, Poirier, Poupinet, Saxena, Shearer, Shen, Shen, Simmons, Singh, Singh, Singh, Singh, Song, Song, Song, Song, Song, Souriau, Stacey, Steinle-Neumann, Steinle-Neumann, Stixrude, Stixrude, Stixrude, Stixrude, Stixrude, Stixrude, Su, Su, Söderlind, Tanaka, Taylor, Tromp, Tromp, Troullier, Tsunoda, Uchida, Uhl, Verhoogen, Verhoogen, Vidale, Vočadlo, Wasserman, Watt, Wenk, Wenk, Wenk, Wentzcovitch, Williams, Woodhouse, Yagi, Yoo, Yoo, Yoshida, Yukutake, Yukutake   +168 more
core   +1 more source

Seismic Waves Do Sense Fracture Connectivity: Experimental Validation

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Fracture connectivity is a key parameter controlling fluid flow throughout the Earth's crust. While some theoretical and numerical studies suggest that seismic waves are sensitive to fracture connectivity, an experimental validation of this critically important phenomenon was so far unavailable.
Yanbin He, J. Germán Rubino, Jianping Liao, Guangui Zou, Tailang Zhao, Bin Li, Hui Li, Jinghuai Gao, Guiwen Xu, Klaus Holliger   +9 more
wiley   +1 more source

Shear wave structure of a transect of the Los Angeles basin from multimode surface waves and H/V spectral ratio analysis [PDF]

, 2020
We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both ...
Beroza, Gregory C., Clayton, Robert W., Perton, Mathieu, Spica, Zack J.   +3 more
core  

On the Construction of Moho Reflected Shear Wave Phases From Ambient Noise

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Shear waves reflected from the Moho (SmS) are frequently identified in ambient noise cross‐correlation functions. Despite their consistent appearance across various arrays and studies, the physical origin and generation mechanisms of these SmS phases remain poorly understood.
Jinyun Xie, Yinhe Luo, Yingjie Yang, Ping Tong, Yanan Xie   +4 more
wiley   +1 more source

Is inner core seismic anisotropy a marker for plastic flow of cubic iron? [PDF]

, 2015
International audienceThis paper investigates whether observations of seismic anisotropy are compatible with a cubic structure of the inner core Fe alloy.We assume that anisotropy is the result of plastic deformation within a large scale flow induced by ...
Cardin, P., Lincot, A., Merkel, S.
core   +4 more sources

The Magnetic Signature of Stress in Rocks

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Magnetic signatures preserved in rocks have long provided insight into Earth's evolution, revealing processes from plate tectonics to the habitability of Earth. While large impacts are known to impose extreme stresses (>1 GPa) and heat that fundamentally alters magnetic records, lower stresses typical of earthquakes have been considered ...
B. R. Kugabalan, T. M. Mitchell, A. R. Muxworthy, W. Williams, H. Gregov, F. M. Aben, D. P. Dobson, U. D. Bellon, P. G. Meredith   +8 more
wiley   +1 more source